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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Push Button (Big size)
Momentary tactile / arcade-style push button. Panel-mount (16mm/19mm/22mm) or PCB. Debounce required.
1K Ohm Rotary Potentiometer Round Shaft 3 Pin Elcon
[Potentiometer] 1KΩ Rotary Potentiometer Round Shaft Elcon The 1KΩ Rotary Potentiometer Round Shaft Elcon is a reliable 3-pin linear rotary potentiometer designed for adjusting electrical parameters such as voltage, current, brightness, motor speed, and other control functions in electronic circuits. By rotating the shaft, the resistance can be smoothly adjusted across its available range, making it suitable for a wide variety of DIY and electronic applications. With its compact 16mm body, 6mm round shaft, and through-hole mounting design, this potentiometer is easy to install on electronic PCBs and control panels. Its linear resistance characteristics make it suitable for applications such as LED brightness control, fan speed control, motor control, power supply adjustment, and general-purpose voltage control. ⭐ Key Features 1KΩ resistance value 3-pin rotary potentiometer Linear potentiometer Smooth rotary adjustment 6mm round shaft 10mm shaft length Compact 16mm body diameter Through-hole mounting Suitable for PCB and electronic circuits Ideal for voltage and resistance adjustment Suitable for DIY and electronic projects Elcon brand 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Resistance Value: 1KΩ Configuration: 3 Pin / Single Gang Tolerance: ±20% Shaft Type: Round Shaft Shaft Diameter: 6mm Shaft Length: 10mm Body Diameter / Width: 16mm Total Height: Approx. 25mm Mounting Type: Through Hole Operating Temperature: -40°C to +80°C Weight: Approx. 8g 🔧 Applications LED Brightness Control Fan Speed Control Motor Speed Control Voltage Adjustment Current Adjustment Power Supply Circuits Audio & Electronic Circuits Arduino Projects DIY Electronics Projects Electronic Prototyping 🛠️ How It Works A potentiometer is a variable resistor with three terminals. The two outer terminals are connected to the resistive track, while the center terminal acts as the wiper. Rotating the shaft changes the wiper position and therefore changes the resistance or output voltage in the circuit. 📦 Package Includes 1 × 1KΩ Rotary Potentiometer Round Shaft Elcon ⚠️ Note Product images are shown for illustrative purposes only and may differ slightly from the actual product. The 1KΩ value, tolerance, dimensions, and shaft length should be verified against the actual product batch before installation.
5K Ohms Rotary Potentiometer Round Shaft 3 Pin Elcon
[Potentiometer] 5KΩ Rotary Potentiometer Round Shaft Elcon The 5KΩ Rotary Potentiometer Round Shaft Elcon is a reliable 3-pin linear rotary potentiometer designed for adjusting electrical parameters such as voltage, current, brightness, motor speed, and other control functions in electronic circuits. By rotating the shaft, the resistance can be smoothly adjusted across its available range, making it suitable for a wide variety of DIY and electronic applications. With its compact 16mm body, 6mm round shaft, and through-hole mounting design, this potentiometer is easy to install on electronic PCBs and control panels. Its linear resistance characteristics make it suitable for applications such as LED brightness control, fan speed control, motor control, power supply adjustment, and general-purpose voltage control. ⭐ Key Features 5KΩ resistance value 3-pin rotary potentiometer Linear potentiometer Smooth rotary adjustment 6mm round shaft 13mm shaft length Compact 16mm body diameter Through-hole mounting Suitable for PCB and electronic circuits Ideal for voltage and resistance adjustment Suitable for DIY and electronic projects Elcon brand 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Resistance Value: 5KΩ Configuration: 3 Pin / Single Gang Tolerance: ±20% Shaft Type: Round Shaft Shaft Diameter: 6mm Shaft Length: 13mm Body Diameter / Width: 16mm Total Height: Approx. 28mm Mounting Type: Through Hole Operating Temperature: -40°C to +80°C Weight: Approx. 8g 🔧 Applications LED Brightness Control Fan Speed Control Motor Speed Control Voltage Adjustment Current Adjustment Power Supply Circuits Audio & Electronic Circuits Arduino Projects DIY Electronics Projects Electronic Prototyping 🛠️ How It Works A potentiometer is a variable resistor with three terminals. The two outer terminals are connected to the resistive track, while the center terminal acts as the wiper. Rotating the shaft changes the wiper position and therefore changes the resistance or output voltage in the circuit. 📦 Package Includes 1 × 5KΩ Rotary Potentiometer Round Shaft Elcon ⚠️ Note Product images are shown for illustrative purposes only and may differ slightly from the actual product. The 5KΩ value, tolerance, dimensions, and shaft length should be verified against the actual product batch
16mm Ultrasonic Humidifier Atomizer Disc Piezoelectric Mist Maker Transducer Module 108KHz
[Ultrasonic Sensor] The 16mm Ultrasonic Humidifier Atomization Module is a high-efficiency piezoelectric transducer designed for mist generation and humidification applications. It operates using ultrasonic vibration technology to convert water into ultra-fine mist particles quickly and efficiently. In addition, the module works on the principle of ultrasonic cavitation, where high-frequency sound waves generate rapid compression and rarefaction inside the water. As a result, microscopic water droplets are released into the air as cool mist. Because of its 108KHz resonant frequency, the atomizer produces fine and uniform fog particles while maintaining low noise operation. Furthermore, the compact 16mm design allows easy integration into humidifiers, aroma diffusers, medical atomizers, and DIY mist generation systems. The atomization disc is built using durable piezoelectric material for long operational life and stable performance. Moreover, the module consumes very little power while providing efficient mist output. ⚠️ Note: This atomizer module requires a compatible ultrasonic driver board for operation. The driver circuit is not included in the package and must be purchased separately. This ultrasonic humidifier module is widely used in humidifiers, beauty care devices, medical atomization equipment, aroma diffusers, and DIY electronics projects. 🔹 Key Features 16mm ultrasonic atomizer disc High-frequency 108KHz operation Fine and uniform mist generation Low noise operation Small fog particle output Long operational life High stability performance Low power consumption Suitable for humidifier and mist maker projects 🔹 Technical Specifications Product Type: Ultrasonic Atomizer Transducer Module Atomizer Diameter: 16mm Operating Voltage: DC 3.7V –5V Resonant Frequency: 108KHz Resonant Impedance: < 2 Ohms Coupling Factor: > 52% Electrostatic Capacity: 3000pF Spray Quantity: > 110mL/h Operation Type: Ultrasonic Piezoelectric Atomization Fog Particle Type: Ultra-Fine Mist Noise Level: Low Noise Operation Material: Piezoelectric Ceramic + Metal 🔹 Working Principle The ultrasonic atomizer uses a piezoelectric transducer immersed in water. When driven at high frequency, the transducer creates rapid mechanical oscillations that generate cavitation bubbles and surface waves. Consequently, microscopic water droplets are released into the air as cool mist with minimal energy consumption. 🔹 Applications This ultrasonic atomizer module is suitable for many applications, including: Humidifiers Mist makers Aroma diffusers Medical atomizers Facial beauty equipment DIY humidification projects Decorative fog systems 🔹 Package Includes 1 × 16mm Ultrasonic Humidifier Atomization Sensor Module
100K Rotary Potentiometer Round Shaft Elcon
[Potentiometer] 100KΩ Rotary Potentiometer Round Shaft Elcon The 100KΩ Rotary Potentiometer Round Shaft Elcon is a reliable 3-pin linear rotary potentiometer designed for adjusting electrical parameters such as voltage, current, brightness, motor speed, and other control functions in electronic circuits. By rotating the shaft, the resistance can be smoothly adjusted across its available range, making it suitable for a wide variety of DIY and electronic applications. With its compact 16mm body, 6mm round shaft, and through-hole mounting design, this potentiometer is easy to install on electronic PCBs and control panels. Its linear resistance characteristics make it suitable for applications such as LED brightness control, fan speed control, motor control, power supply adjustment, and general-purpose voltage control. ⭐ Key Features 100KΩ resistance value 3-pin rotary potentiometer Linear potentiometer Smooth rotary adjustment 6mm round shaft 13mm shaft length Compact 16mm body diameter Through-hole mounting Suitable for PCB and electronic circuits Ideal for voltage and resistance adjustment Suitable for DIY and electronic projects Elcon brand 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Resistance Value: 100KΩ Configuration: 3 Pin / Single Gang Tolerance: ±20% Shaft Type: Round Shaft Shaft Diameter: 6mm Shaft Length: 13mm Body Diameter / Width: 16mm Total Height: Approx. 28mm Mounting Type: Through Hole Operating Temperature: -40°C to +80°C Weight: Approx. 8g 🔧 Applications LED Brightness Control Fan Speed Control Motor Speed Control Voltage Adjustment Current Adjustment Power Supply Circuits Audio & Electronic Circuits Arduino Projects DIY Electronics Projects Electronic Prototyping 🛠️ How It Works A potentiometer is a variable resistor with three terminals. The two outer terminals are connected to the resistive track, while the center terminal acts as the wiper. Rotating the shaft changes the wiper position and therefore changes the resistance or output voltage in the circuit. 📦 Package Includes 1 × 100KΩ Rotary Potentiometer Round Shaft Elcon ⚠️ Note Product images are shown for illustrative purposes only and may differ slightly from the actual product. The 100KΩ value, tolerance, dimensions, and shaft length should be verified against the actual product batch before installation.
10K Rotary Potentiometer Round Shaft 3Pin Elcon
[Potentiometer] 10KΩ Rotary Potentiometer Round Shaft Elcon The 10KΩ Rotary Potentiometer Round Shaft Elcon is a reliable 3-pin variable resistor designed for adjusting electrical parameters such as voltage, current, brightness, motor speed, and other control functions in electronic circuits. By rotating the shaft, the resistance can be smoothly adjusted across its available range, making it suitable for a wide variety of DIY and electronic applications. With its compact 16mm body, 6mm round shaft, and through-hole mounting design, this potentiometer is easy to install on electronic PCBs and control panels. The linear resistance characteristics make it particularly suitable for applications such as LED brightness control, fan speed control, motor control, and general-purpose voltage adjustment. ⭐ Key Features 10KΩ resistance value 3-pin rotary potentiometer Linear potentiometer Smooth rotary adjustment 6mm round shaft Compact 16mm body diameter Through-hole mounting Suitable for PCB and electronic circuits Useful for voltage and current adjustment Suitable for LED, fan and motor control applications Elcon brand 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Resistance Value: 10KΩ Configuration: 3 Pin / Single Gang Tolerance: ±20% Shaft Type: Round Shaft Shaft Diameter: 6mm Shaft Length: 13mm Body Diameter / Width: 16mm Total Height: 30mm Mounting Type: Through Hole Operating Temperature: -40°C to +80°C Weight: Approx. 8g 🔧 Applications LED Brightness Control Fan Speed Control Motor Speed Control Voltage Adjustment Current Adjustment Power Supply Circuits Arduino Projects DIY Electronics Projects Audio & Electronic Circuits Electronic Prototyping 🛠️ How It Works A potentiometer is a variable resistor with three terminals. The two outer terminals are connected to the resistive track, while the center terminal acts as the wiper. Rotating the shaft changes the wiper position and therefore changes the resistance or output voltage in the circuit. 📦 Package Includes 1 × 10KΩ Rotary Potentiometer Round Shaft Elcon ⚠️ Note Product images are shown for illustrative purposes only and may differ slightly from the actual product. The 10KΩ value and ±20% tolerance are based on the supplied product specifications.
Type-C USB Ultrasonic Mist Maker Humidifier – 5V Atomizer Module with 108KHz Disc & PCB
[Ultrasonic Sensor] The Type-C USB Ultrasonic Mist Maker Humidifier Module is a compact and efficient atomization device designed for humidification and mist generation applications. It uses advanced ultrasonic technology to produce a fine and continuous mist, helping improve air moisture and indoor comfort. In addition, the module operates using a 108KHz high-frequency ceramic atomizer disc, which ensures stable mist generation with low noise and efficient performance. As a result, it is suitable for personal humidifiers, aroma diffusers, facial beauty equipment, and DIY mist projects. Because of its convenient Type-C USB power interface, the module can be powered easily using USB adapters, power banks, laptops, and other 5V USB power sources. Furthermore, the compact PCB design allows easy integration into portable and custom-built humidifier systems. The module also features low power consumption and reliable operation for continuous use. Moreover, the built-in safety protection helps automatically stop operation when the water level becomes too low. This ultrasonic mist maker is widely used in humidifiers, mist generators, aromatherapy devices, beauty care equipment, and medical atomization systems. 🔹 Key Features Ultrasonic mist generation technology 108KHz ceramic atomizer disc Convenient Type-C USB power input Fine and continuous mist output Compact and lightweight design Low power consumption Quiet operation Automatic low water protection Suitable for DIY humidifier projects 🔹 Technical Specifications Product Type: Ultrasonic Mist Maker Module Input Voltage: 5V DC Power Interface: Type-C USB Operating Frequency: 108KHz Atomization Mode: Continuous Power Consumption: Less than 3W Mist Output: Adjustable Operating Temperature: 5°C to 45°C Storage Temperature: -10°C to 60°C Material: PCB + Ceramic Atomization Film Humidity Range: Non-Condensing Application Type: Humidifier / Mist Generator 🔹 Applications This ultrasonic mist maker module is suitable for many applications, including: Portable humidifiers DIY mist generators Aroma diffusers Facial beauty equipment Medical liquid atomizers Air moisture control systems Decorative mist projects 🔹 Package Includes 1 × Humidifier Driver Board 1 × 16mm Atomizer Plate 1 × Cotton Stick Stand 1 × Cotton Stick
MH-M18 Wireless Bluetooth Audio Receiver Board Module BLT 4.2 MP3 Lossless Decode
[Audio Receiver] MH-M18 Wireless Bluetooth Audio Receiver Board Module – Bluetooth 4.2 MP3 Lossless Decoder The MH-M18 Wireless Bluetooth Audio Receiver Module is a compact, low-power Bluetooth 4.2 audio receiver designed to add wireless audio functionality to existing speakers, amplifiers, DIY audio systems and other projects. It supports stereo two-channel audio output and lossless decoding of WAV, WMA, FLAC, APE and MP3 formats. The module can operate from 3.7–5V and provides a transmission range of up to 20 meters under suitable conditions. ⭐ Key Features Bluetooth 4.2 wireless audio receiver Converts conventional speakers/amplifiers into Bluetooth-enabled audio systems Supports stereo dual-channel audio output Supports WAV/WMA/FLAC/APE/MP3 audio decoding Bluetooth automatic connection support Maximum transmission distance up to 20 meters in open/low-interference conditions Low power consumption Can be powered from a 3.7–4.2V lithium battery or 5V supply Compact PCB suitable for DIY projects Supports Bluetooth audio protocols including HFP, A2DP and AVRCP 📋 Technical Specifications Model: MH-M18 Bluetooth Version: Bluetooth 4.2 Operating Voltage: DC 3.7–5V Maximum Operating Current: Approximately 20mA Current in Deep Sleep: Approximately 3µA Transmission Distance: Up to 20 meters Sensitivity: -87dBm Operating Temperature: -40°C to +85°C Audio Output: Stereo, dual channel Supported Formats: WAV, WMA, FLAC, APE, MP3 Bluetooth Protocols: HFP V1.7, A2DP V1.2, AVRCP V1.5, AVCTP V1.2, AVDTP V1.2 Approx. Module Size: 23 × 16mm; some listings specify approximately 23 × 16.5 × 3mm depending on version. 🔧 Applications Convert old speakers into Bluetooth speakers DIY Bluetooth speaker projects DIY audio amplifiers Portable speaker projects Home audio systems Car audio Bluetooth upgrades Wireless audio receiver projects Custom audio and electronics projects 🛠️ Basic Connection VCC: Power input GND: Ground L: Left audio output R: Right audio output Connect the L/R audio outputs to an external amplifier. This module is an audio receiver/decoder and should not be treated as a high-power speaker amplifier. 💡 Bluetooth Indicator Fast flashing: Bluetooth not connected Steady light: Bluetooth connected Slow flashing: Bluetooth audio playback in some versions ⚠️ Important Notes Do not supply more than the specified operating voltage. For lithium-battery operation, use a suitable 3.7–4.2V supply. The maximum 20m transmission distance depends on obstacles, interference and the connected Bluetooth device. This is a Bluetooth audio receiver module, not a power amplifier. Audio output should be connected to a suitable amplifier input. IC Variant Note: This product may be supplied with different compatible IC variants, including MH-M18 or JL AS208PO1429-25C4. Functionality is specified as equivalent for this product, and the variant will be shipped randomly depending on stock. 📦 Package Includes 1 × MH-M18 Wireless Bluetooth Audio Receiver Board Module
DC5V Humidifier USB Spray Module DIY Incubation Experiment Equipm 108KHz(mist maker)
[Ultrasonic Sensor] Description This DC Ultrasonic Humidifiers Power Circuit Board with Atomizing Chip Moisture Film Humidification atomization machine consists of an atomization plate tablet with a diameter of 20mm. This Ultrasonic Humidifier Piezoelectric Transmitter module works on the principle of cavitation produced by sound waves. Just provide the DC 3V to 5V power supply it will turn into a mini ultrasonic atomizer. As sound waves contain compression and rarefaction. Due to extremely rapid movement, water droplets can no longer sustain their liquid state and get converted into vapor immediately. This vibration is produced by a piezoelectric filament. Tags, USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation, Tags, OEM/ODM Available Mini Humidifier USB spray module humidifier pcb circuit board for DIY kit Incubation Experiment Equipment, USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation, 5V DIY Ultrasonic Piezoelectric Humidifier Moisture Atomizing Chip Mist maker circuit board. Features Come with a driver Power-ON trigger work 108KHz high-frequency oscillator Micron level aperture The glazed surface of the atomized sheet Features/Specs: Product Name: 108KHz 20mm USB Humidifier Work Voltage: DC 4.5V~5.0V Work Power:2W Work Frequency:108KHz(+/-3KHz) Power Type: Female USB Socket Diameter without rubber ring:16mm Diameter with rubber ring:20mm Spray Diameter:5um Spray Hole:740 holes Spray speed:50ml/h Work Temperature:0℃ ~ 85℃ Work Humidity:10%~90%RH Driver Size:35*19*15mm Length: 35 mm Width: 19 mm Height: 15 mm Weight: 10 gm Application: Humidifier | mist maker Beauty care for facial massager Medical liquid atomizing Equipment Package Includes: 1pc x Humidifier Driver Bord 1pc x 16mm Atomizer Plate 1pc x Cotton Stick Stand 1pc x Cotton Stick
1K Ohm Linear Taper 16mm Rotary Potentiometer Elcon
[Potentiometer] Elcon B1K 1KΩ 16mm Rotary Potentiometer – 3 Pin D-Type Shaft The Elcon B1K 1KΩ Rotary Potentiometer is a compact 3-pin linear taper potentiometer designed for adjusting voltage, resistance, tone, brightness, speed, and other electrical parameters in electronic circuits. It has a total resistance of 1KΩ, with the resistance distributed linearly across the rotation of the shaft. The potentiometer can be used as a variable resistor or as a variable voltage divider. The two outer pins provide the full resistance value, while the center pin acts as the wiper and provides an adjustable resistance or voltage depending on the circuit connection. Its D-type shaft provides a secure grip for a compatible knob, while the included nut allows the potentiometer to be securely fixed to a panel or enclosure. The compact 16mm body makes it suitable for PCB and general-purpose electronic applications. ⭐ Key Features 1KΩ total resistance B1K linear taper 3-pin configuration D-type shaft Compact 16mm potentiometer Includes fixing nut Suitable for PCB mounting Can be used as a variable resistor Can be used as a variable voltage divider Suitable for tone and electronic control applications Breadboard compatible according to the supplied specifications 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Potentiometer Value: B1K / 1KΩ Taper: Linear Number of Pins: 3 Shaft Type: D-Type Shaft Diameter: 4mm Shaft Length: 8–10mm Pins Pitch: 4.4mm Dimensions: 25mm × 16mm × 16mm Nut Inner Diameter: 6mm Nut Outer Diameter: 10mm Mounting: PCB / Panel Mount Breadboard Compatible: Yes 🔌 Pin Function Outer Pin 1: Resistive track terminal Center Pin: Wiper / Variable output Outer Pin 3: Resistive track terminal The resistance between the two outer pins remains approximately 1KΩ, while the resistance between the center pin and either outer pin changes as the shaft is rotated. 🔧 Applications Tone Control Audio Circuits Volume & Signal Adjustment LED Brightness Control Motor Speed Control Voltage Adjustment Variable Resistor Applications Arduino Projects DIY Electronics Projects PCB Prototyping General Electronic Control Circuits 🛠️ How It Works When used as a potentiometer, the center pin acts as the adjustable wiper and can provide a variable output across the rotation range. When used as a variable resistor, the wiper can be connected with one of the outer terminals to obtain an adjustable resistance. 📦 Package Includes 1 × Elcon B1K 1KΩ 3-Pin Rotary Potentiometer 1 × Fixing Nut ⚠️ Note Product images are for illustrative purposes only and may differ slightly from the actual product. The supplied specifications state a shaft length of 8–10mm; please verify the exact dimensions against the available product batch before installation.
100K Ohm Linear Taper 16mm Rotary Potentiometer Elcon
[Potentiometer] Elcon B100K 100KΩ 16mm Rotary Potentiometer – 3 Pin D-Type Shaft The Elcon B100K 100KΩ Rotary Potentiometer is a compact 3-pin linear taper potentiometer designed for adjusting voltage, resistance, signal levels, brightness, motor speed, and other electrical parameters in electronic circuits. It has a total resistance of 100KΩ, with the resistance distributed linearly across the rotation of the shaft. The potentiometer can be used as a variable resistor or as a variable voltage divider. The two outer pins provide the full resistance value, while the center pin acts as the wiper and provides an adjustable resistance or voltage depending on the circuit connection. Its D-type shaft provides a secure grip for a compatible knob, while the included nut allows the potentiometer to be securely fixed to a panel or enclosure. The compact 16mm body makes it suitable for PCB and general-purpose electronic applications. ⭐ Key Features 100KΩ total resistance B100K linear taper 3-pin configuration D-type shaft Compact 16mm potentiometer Includes fixing nut Suitable for PCB mounting Can be used as a variable resistor Can be used as a variable voltage divider Suitable for tone and electronic control applications Breadboard compatible according to the supplied specifications 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Potentiometer Value: B100K / 100KΩ Taper: Linear Number of Pins: 3 Shaft Type: D-Type Shaft Diameter: 4mm Shaft Length: 8–10mm Pins Pitch: 4.4mm Dimensions: 25mm × 16mm × 16mm Nut Inner Diameter: 6mm Nut Outer Diameter: 10mm Mounting: PCB / Panel Mount Breadboard Compatible: Yes 🔌 Pin Function Outer Pin 1: Resistive track terminal Center Pin: Wiper / Variable output Outer Pin 3: Resistive track terminal The resistance between the two outer pins remains approximately 100KΩ, while the resistance between the center pin and either outer pin changes as the shaft is rotated. 🔧 Applications Tone Control Audio Circuits Signal Level Adjustment LED Brightness Control Motor Speed Control Voltage Adjustment Variable Resistor Applications Arduino Projects DIY Electronics Projects PCB Prototyping General Electronic Control Circuits 🛠️ How It Works When used as a potentiometer, the center pin acts as the adjustable wiper and provides a variable output across the rotation range. When used as a variable resistor, the wiper can be connected with one of the outer terminals to obtain an adjustable resistance. 📦 Package Includes 1 × Elcon B100K 100KΩ 3-Pin Rotary Potentiometer 1 × Fixing Nut ⚠️ Note Product images are for illustrative purposes only and may differ slightly from the actual product. The supplied specifications state a shaft length of 8–10mm; please verify the exact dimensions against the actual product batch before installation.
5K Ohm Linear Taper 16mm Rotary Potentiometer-Elcon
[Potentiometer] Elcon B5K 5KΩ 16mm Rotary Potentiometer – 3 Pin D-Type Shaft The Elcon B5K 5KΩ Rotary Potentiometer is a compact 3-pin linear taper potentiometer designed for adjusting voltage, resistance, tone, brightness, motor speed, and other electrical parameters in electronic circuits. It has a total resistance of 5KΩ, with the resistance distributed linearly across the rotation of the shaft. The potentiometer can be used as a variable resistor or as a variable voltage divider. The two outer pins provide the full resistance value, while the center pin acts as the wiper and provides an adjustable resistance or voltage depending on the circuit connection. Its D-type shaft provides a secure grip for a compatible knob, while the included nut allows the potentiometer to be securely fixed to a panel or enclosure. The compact 16mm body makes it suitable for PCB and general-purpose electronic applications. ⭐ Key Features 5KΩ total resistance B5K linear taper 3-pin configuration D-type shaft Compact 16mm potentiometer Includes fixing nut Suitable for PCB mounting Can be used as a variable resistor Can be used as a variable voltage divider Suitable for tone and electronic control applications Breadboard compatible according to the supplied specifications 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Potentiometer Value: B5K / 5KΩ Taper: Linear Number of Pins: 3 Shaft Type: D-Type Shaft Diameter: 4mm Shaft Length: 8–10mm Pins Pitch: 4.4mm Dimensions: 25mm × 16mm × 16mm Nut Inner Diameter: 6mm Nut Outer Diameter: 10mm Mounting: PCB / Panel Mount Breadboard Compatible: Yes 🔌 Pin Function Outer Pin 1: Resistive track terminal Center Pin: Wiper / Variable output Outer Pin 3: Resistive track terminal The resistance between the two outer pins remains approximately 5KΩ, while the resistance between the center pin and either outer pin changes as the shaft is rotated. 🔧 Applications Tone Control Audio Circuits Volume & Signal Adjustment LED Brightness Control Motor Speed Control Voltage Adjustment Variable Resistor Applications Arduino Projects DIY Electronics Projects PCB Prototyping General Electronic Control Circuits 🛠️ How It Works When used as a potentiometer, the center pin acts as the adjustable wiper and provides a variable output across the rotation range. When used as a variable resistor, the wiper can be connected with one of the outer terminals to obtain an adjustable resistance. 📦 Package Includes 1 × Elcon B5K 5KΩ 3-Pin Rotary Potentiometer 1 × Fixing Nut ⚠️ Note Product images are for illustrative purposes only and may differ slightly from the actual product. The supplied specifications state a shaft length of 8–10mm; please verify the exact dimensions against the actual product batch before installation.
10K Ohm Linear Taper 16mm Rotary Potentiometer Elcon
[Potentiometer] Elcon B10K 10KΩ 16mm Rotary Potentiometer – 3 Pin D-Type Shaft The Elcon B10K 10KΩ Rotary Potentiometer is a compact 3-pin linear taper potentiometer designed for adjusting voltage, resistance, tone, brightness, motor speed, and other electrical parameters in electronic circuits. It has a total resistance of 10KΩ, with the resistance distributed linearly across the rotation of the shaft. The potentiometer can be used as a variable resistor or as a variable voltage divider. The two outer pins provide the full resistance value, while the center pin acts as the wiper and provides an adjustable resistance or voltage depending on the circuit connection. Its D-type shaft provides a secure grip for a compatible knob, while the included nut allows the potentiometer to be securely fixed to a panel or enclosure. The compact 16mm body makes it suitable for PCB and general-purpose electronic applications. ⭐ Key Features 10KΩ total resistance B10K linear taper 3-pin configuration D-type shaft Compact 16mm potentiometer Includes fixing nut Suitable for PCB mounting Can be used as a variable resistor Can be used as a variable voltage divider Suitable for tone and electronic control applications Breadboard compatible according to the supplied specifications 📋 Technical Specifications Product Type: Rotary Potentiometer Brand: Elcon Potentiometer Value: B10K / 10KΩ Taper: Linear Number of Pins: 3 Shaft Type: D-Type Shaft Diameter: 4mm Shaft Length: 8–10mm Pins Pitch: 4.4mm Dimensions: 25mm × 16mm × 16mm Nut Inner Diameter: 6mm Nut Outer Diameter: 10mm Mounting: PCB / Panel Mount Breadboard Compatible: Yes 🔌 Pin Function Outer Pin 1: Resistive track terminal Center Pin: Wiper / Variable output Outer Pin 3: Resistive track terminal The resistance between the two outer pins remains approximately 10KΩ, while the resistance between the center pin and either outer pin changes as the shaft is rotated. 🔧 Applications Tone Control Audio Circuits Volume & Signal Adjustment LED Brightness Control Motor Speed Control Voltage Adjustment Variable Resistor Applications Arduino Projects DIY Electronics Projects PCB Prototyping General Electronic Control Circuits 🛠️ How It Works When used as a potentiometer, the center pin acts as the adjustable wiper and provides a variable output across the rotation range. When used as a variable resistor, the wiper can be connected with one of the outer terminals to obtain an adjustable resistance. 📦 Package Includes 1 × Elcon B10K 10KΩ 3-Pin Rotary Potentiometer 1 × Fixing Nut ⚠️ Note Product images are for illustrative purposes only and may differ slightly from the actual product. The supplied specifications state a shaft length of 8–10mm; please verify the exact dimensions against the actual product batch before installation.
100K 16mm Linear Taper 6-Pin Dual Gang Rotary Potentiometer
[Potentiometer] The 100K 16mm Linear Taper Dual Gang Rotary Potentiometer is a precision variable resistor designed for accurate voltage and signal adjustment in audio, electronic, and industrial applications. Its dual-gang construction enables two separate circuits to be controlled simultaneously using a single rotating shaft, making it ideal for stereo volume control and dual-channel signal adjustment. Manufactured with high-quality resistive elements and durable metal components, the potentiometer delivers smooth rotation, low noise operation, excellent linearity, and long mechanical life. The 16mm body size provides a compact solution suitable for PCB mounting in amplifiers, mixers, DIY audio systems, control panels, and electronic equipment. The 100KΩ linear taper provides uniform resistance variation throughout the rotation angle, making it suitable for voltage dividers, signal attenuation, and control circuits where linear response is required. With a standard knurled shaft and 6 solder terminals, this potentiometer is easy to install and compatible with a wide variety of control knobs and electronic projects. 🔹 Key Features Dual gang rotary potentiometer 100KΩ linear taper resistance Smooth and precise rotation 16mm compact body 6-pin solder terminal design Low noise operation Long mechanical life Durable metal shaft Easy PCB mounting Suitable for stereo audio control 🔹 Technical Specifications Product Type: Dual Gang Rotary Potentiometer Resistance Value: 100KΩ Taper Type: Linear (B100K) Number of Gangs: Dual Number of Pins: 6 Body Diameter: 16mm Shaft Type: Knurled Metal Shaft Shaft Diameter: 6mm Shaft Length: Approx. 15mm Rotation Angle: Approx. 300° Mounting Type: PCB Through Hole Terminal Type: Solder Pins Power Rating: 0.125W (Typical) Resistance Tolerance: ±20% Operating Temperature: -10°C to +70°C 🔹 Applications Suitable for: Audio amplifiers Stereo volume control Tone control circuits Audio mixers Power amplifiers DIY electronics Signal level adjustment Voltage divider circuits Instrumentation equipment Electronic control panels 🔹 Package Includes 1 × 100K 16mm Linear Taper 6-Pin Dual Gang Rotary Potentiometer
10K Ohm 16mm Linear Taper 6-Pin Dual Gang Rotary Potentiometer
[Potentiometer] 16mm 10KΩ 6-Pin Dual-Gang Rotary Potentiometer The 16mm 10KΩ 6-Pin Rotary Potentiometer is a compact and versatile dual-gang rotary potentiometer designed to control two separate electrical channels simultaneously using a single rotary shaft. With 6 pins in total, each potentiometer section has 3 terminals, making it suitable for stereo audio control, dual-channel signal adjustment, amplifier circuits, tone control, and various DIY electronics applications. By rotating the shaft, the resistance of each potentiometer section can be adjusted smoothly. The dual-gang construction allows both channels to be controlled together, making this potentiometer particularly useful for stereo volume control and other applications requiring synchronized adjustment. ⭐ Key Features 10KΩ resistance value 16mm body diameter 6-pin dual-gang configuration 3 pins per potentiometer section Single rotary shaft controls both gangs Smooth and reliable rotary operation Compact design Suitable for PCB and panel mounting Ideal for stereo and dual-channel applications Suitable for audio and general electronic circuits Compatible with suitable potentiometer knobs 📋 Technical Specifications Product Type: Rotary Potentiometer Resistance Value: 10KΩ Body Diameter: 16mm Configuration: Dual Gang Number of Pins: 6 Pins per Gang: 3 Operation: Single Turn Rotary Shaft Length: 9mm Total Potentiometer Height: 27mm Mounting Type: PCB / Panel Mount Application: Variable Resistance / Voltage Control 🔌 Pin Configuration The potentiometer has 6 pins in total, divided into two independent 3-pin sections: Pins 1, 2 & 3: First potentiometer section Pins 4, 5 & 6: Second potentiometer section Each section consists of two resistive-track terminals and one center wiper terminal. Rotating the shaft moves the wiper and changes the resistance or output voltage. 🔧 Applications Stereo Audio Volume Control Audio Amplifiers Tone Control Circuits Pre-Amplifier Circuits Dual-Channel Signal Adjustment LED Brightness Control Motor Speed Control Power Supply Adjustment 555 Timer Circuits Arduino Projects ESP32 Projects DIY Electronics Projects Audio Equipment Electronic Prototyping 🛠️ How to Use The two outer terminals of each potentiometer section can be connected across the required voltage or signal path, while the center terminal works as the adjustable wiper output. In stereo audio applications, one gang can be used for the left channel and the other gang for the right channel, allowing both channels to be adjusted simultaneously. 📦 Package Includes 1 × 16mm 10KΩ 6-Pin Dual-Gang Rotary Potentiometer ⚠️ Precautions Check the pin configuration before connecting the potentiometer. Do not exceed the electrical limits of the connected circuit. Ensure correct wiring when using both gangs for stereo applications. Use a suitable knob compatible with the shaft. The exact taper and shaft shape may vary depending on the product variant.
47K 16mm Linear Taper 6-Pin Dual Gang Rotary Potentiometer
[Potentiometer] The 47K 16mm Linear Taper Dual Gang Rotary Potentiometer is a high-quality variable resistor designed for precise voltage and signal adjustment in audio and electronic circuits. Its dual-gang construction allows simultaneous control of two independent channels using a single shaft, making it perfect for stereo volume and tone control applications. Equipped with a D-cut metal shaft, the potentiometer provides a secure fit for compatible control knobs, preventing slippage during operation. The 47KΩ linear resistance offers uniform resistance change across the entire rotation angle, making it suitable for signal control, voltage divider circuits, and industrial electronic equipment. Built with high-quality resistive elements and durable metal contacts, it delivers smooth rotation, low noise, excellent stability, and a long mechanical life. The compact 16mm body and 6-pin PCB mounting design allow easy installation in amplifiers, mixers, control panels, and DIY electronic projects. 🔹 Key Features Dual gang rotary potentiometer 47KΩ linear taper (B47K) D-cut metal shaft 6-pin PCB mounting Smooth and precise rotation Low noise operation Long mechanical life Compact 16mm body Durable construction Ideal for stereo audio applications 🔹 Technical Specifications Product Type: Dual Gang Rotary Potentiometer Resistance Value: 47KΩ Taper Type: Linear (B47K) Number of Gangs: Dual Number of Pins: 6 Body Diameter: 16mm Shaft Type: D-Cut Metal Shaft Shaft Diameter: 6mm Shaft Length: Approx. 15mm Rotation Angle: Approx. 300° Mounting Type: PCB Through Hole Terminal Type: Solder Pins Power Rating: 0.125W (Typical) Resistance Tolerance: ±20% Operating Temperature: -10°C to +70°C 🔹 Applications Suitable for: Stereo audio amplifiers Volume control circuits Tone control circuits Audio mixers Home audio systems DIY electronics Signal level adjustment Voltage divider circuits Instrumentation equipment Electronic control panels 🔹 Package Includes 1 × 47K 16mm Linear Taper Dual Gang Rotary Potentiometer with D-Cut Shaft
DC 24V 16mm Super Ultrasonic Mist Maker Humidifier Atomizer 12LED Alloy
[Ultrasonic Sensor] 24V Color Changing Humidifier Ultrasonic Mist Maker Water Pond Atomizer Air Humidifiers 12 LED Buy this powerful DC 24V Ultrasonic Humidifier device suitable for atomization with a plate diameter of 20 mm. It is mostly in demand for fish pot and decoration purposes in households. It’s a simple plug-and-play module in which you just have to deep down the module in water and Supply 24 volt DC supply directly from the battery or power supply Adapter and it will start working. Additionally, this 24v 12 Colourful LED Ultrasonic Humidifier 12 LED Mist Maker Fogger comes with 12 Waterproof LED with 3 different colours glowing alternately which adds the colourful mist to your decoration The fully waterproof module has a 5mm DC female jack to connect the 24V input power supply with a 1-meter long cable. Instruction to use: Deep the module in the water keeping 4 to 5 cm water level above the device Connect the power supply of 24V DC 1AMP and enjoy the fog. Use power supply at least with 1AMP output for best performance Do not deep it in water more than 5cm for maximum fog output. How does it work? Ultrasonic Humidifier Piezoelectric Transmitter module works on the principle of cavitation produced by sound waves. Just provide the power supply it will turn into an ultimate ultrasonic atomizer. Features: Huge amount of humidification High-frequency vibration produces 350ml of mist per minute, humidifying all-day Wide Application Supporting use bonsai crafts, fish tank water tanks, DIY crafts and ect. Self-contained water level sensor Automatically power off with water shortage to prevent burning of the atomizer Package Includes: 1 x DC24V 16MM 12LED Alloy Air Humidifier Mist Maker Nebulizer
Potentiometer Knob 113 with Buffer (Pack of 2)
[Electronic Components, Potentiometer] Multi Colour Potentiometer Knob/Rotary Switch Cap for Knurled Potentiometer This potentiometer knob 113 provides a firm grip on the potentiometer stick, making controlling operation very convenient and easy. This knob comes with a translucent buffer to tighten the potentiometer stick with the knob. Features 1. Top Diameter: 16mm ( +/- 1mm ). 2. Bottom Diameter: 20mm ( +/- 1mm ). 3. Knob Height: 17mm ( +/- 1mm ). 4. Knob Internal Diameter: ~6mm.
12Volt DC RS-555 Motor Multipurpose Brushed Motor for DIY applications PCB Drill
12V Brushed DC Motor RS 555 Operating Voltage: 12V No-load Current: 0.6A Maximum Current: 2A No Load RPM: 5500 – 6500 Motor Shaft Diameter: 3.17mm Mounting Screw Hole Diameter : 3mm Distance between Screw Holes: 25mm Diameter of the Motor: 36mm Length of the Motor (Body): 50mm Length of Shaft: 16mm Note: This is a generic DIY Motor, finishing and size may vary in each stock. Product Images are shown for illustrative purposes only and may differ from the actual products. We suggest you buy a few quantities before going for bulk or contact customer support for current stock images.