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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Out of stockUSB-A 3.0 Extension Cable 1.5m
USB 3.0 A-male to A-female extension, 5 Gbps.
Out of stockM3 Hex Standoffs PCB (50 pc, mixed lengths)
Brass M3 hex female-female standoffs in 6/8/10/12/15/20 mm lengths.
Out of stockNylon Standoffs M3 Assortment (100 pc)
Nylon M3 male-female standoffs in 5-25mm lengths for PCB + prototype builds.
Digital USB Mobile Power Charging Current Voltage Tester Meter
[Ammeter and Voltmeter] Digital USB Mobile Power Charging Current Voltage Tester Meter The Digital USB Mobile Power Charging Current Voltage Tester Meter is a compact USB testing device designed to measure and display charging voltage and current in real time. It is useful for checking the power output of USB chargers, power banks and other USB-powered devices. ⭐ Key Features Precise current and voltage measurement Simultaneous voltage and current display Bright digital LCD display Straight USB connector design USB Type-A Male input and USB Type-A Female output Compact and lightweight Easy to connect and use Suitable for USB chargers and power banks Compatible with USB-powered devices 📋 Technical Specifications Product Name: Digital USB Mobile Power Charging Current Voltage Tester Meter Color: As per available stock Input Voltage: 3.5V–7.0V Output Voltage: 3.5V–7.0V Current Measurement Range: 0A–3A Voltage Accuracy: ±1% Current Accuracy: ±1% Display Type: Digital LCD Display Screen Size: 0.91 inch Data Display: Voltage and Current simultaneously Power Consumption: ≤0.1W Interface: USB Type-A Male (Input) / USB Type-A Female (Output) Measurement Frequency: 2 times per second Operating Temperature: 0°C–45°C Material: ABS Plastic Dimensions: 64 × 23 × 15mm Weight: 15g Compatibility: USB-powered devices 🔧 Applications Mobile charger testing USB charger testing Power bank testing USB power supply testing Mobile phone charging analysis USB device testing Electronics troubleshooting DIY electronics projects Checking charging voltage and current 🛠️ How to Use Insert the USB Type-A Male connector into the USB charger, power bank or USB power source. Connect the USB-powered device to the USB Type-A Female output. The digital display will show the voltage and charging current. Monitor the readings during charging or testing. 📦 Package Includes 1 × Digital USB Mobile Power Charging Current Voltage Tester Meter ⚠️ Important Notes Do not exceed the specified voltage and current measurement ranges. This tester is intended for USB/DC applications. Actual readings may vary depending on the charger, cable and connected device. Use within the specified operating temperature range.
5.5 × 2.1mm DC Power Jack Plug with 2-Pin Screw Terminal
[Power Connector] 🔌 5.5 × 2.1mm DC Power Jack Plug with 2-Pin Screw Terminal (Male / Female) Standard DC Barrel Connector • 2-Pin Screw Terminal • Solder-Free Installation • Up to 5A Current Rating The 5.5 × 2.1mm DC Power Jack Plug with 2-Pin Screw Terminal is a convenient and reliable connector designed for quick and secure DC power connections without soldering. Compatible with the industry-standard 5.5mm outer diameter and 2.1mm inner diameter barrel connector, it is widely used in CCTV camera installations, LED lighting, routers, power adapters, and DIY electronics projects. Available in Male and Female variants, this connector features a 2-pin screw terminal that allows wires to be connected easily using a screwdriver. The clearly marked positive (+) and negative (–) terminals help prevent wiring errors, making installation simple for both professionals and hobbyists. Manufactured with a durable ABS plastic housing and nickel-plated metal contacts, this connector provides reliable electrical performance, corrosion resistance, and long service life. Its reusable design makes it ideal for prototyping, repairs, and permanent installations. ⭐ Features Standard 5.5 × 2.1mm DC barrel connector Available in Male and Female versions 2-pin screw terminal for quick wire connection No soldering required Clearly marked positive (+) and negative (–) terminals Supports up to 5A current Durable ABS plastic housing Nickel-plated contacts for improved conductivity Secure and reusable connection Easy plug-and-play installation Suitable for 12V and 24V DC systems Ideal for DIY electronics and repair work 📋 Technical Specifications Product Type: DC Power Jack Plug with Screw Terminal Connector Type: Male / Female Barrel Size: 5.5mm (Outer) × 2.1mm (Inner) Terminal Type: 2-Pin Screw Terminal Rated Voltage: 0–30V DC Recommended Operating Voltage: 12V / 24V DC Maximum Current: Up to 5A Housing Material: ABS Plastic Contact Material: Nickel-Plated Metal Mounting Type: Inline Cable Mount Wire Compatibility: Up to 22 AWG Polarity Marking: Positive (+) / Negative (–) Operating Temperature: -20°C to +80°C 🔧 Applications Suitable for: CCTV Camera Power Connections LED Strip Lighting LED Sign Boards DC Power Adapters Routers and Modems Arduino Projects Raspberry Pi Projects DIY Electronics Battery Packs Power Distribution Systems Industrial Control Equipment Testing and Prototyping Electronic Repairs Low-Voltage DC Power Systems 📦 Package Includes 1 × 5.5 × 2.1mm DC Power Jack Plug with 2-Pin Screw Terminal (Male or Female variant as selected) ⚠️ Note Please select the required Male or Female connector variant before ordering. Verify polarity before connecting power to avoid damage to connected devices. Suitable for low-voltage DC applications only. Product appearance may vary slightly depending on the manufacturing batch.
Type-C USB Mini Humidifier DIY Kit 4 in 1 | 4-Fogger Mist Maker Module | Ultrasonic Atomizer Film Sheet with Driver Board
[Ultrasonic Sensor] The Type-C USB Mini Humidifier DIY Atomizer Kit is a compact ultrasonic mist generation module designed for building or repairing USB-powered humidifiers, aroma diffusers, and fogging systems. Powered directly from a 5V USB Type-C source, the kit features a high-performance driver board and four ultrasonic ceramic atomizer discs that generate a dense, cool mist with low power consumption. Using advanced 108KHz ultrasonic atomization technology, the module converts water into ultra-fine mist particles without producing heat or mechanical noise. The stable driver circuit ensures reliable oscillation, efficient mist production, and long service life, making it an excellent choice for DIY enthusiasts, students, makers, repair technicians, and electronics hobbyists. Simply connect the module to a 5V USB Type-C power source, place the atomizer discs in water, and enjoy instant cool mist generation. It is compatible with custom humidifier enclosures, bottles, containers, 3D-printed projects, hydroponic systems, and decorative fog applications. ⭐ Features USB Type-C powered (5V DC) Four ultrasonic ceramic atomizer discs High-density cool mist output Advanced ultrasonic atomization technology Stable driver circuit for reliable operation Low power consumption Silent operation with no moving parts Compact and lightweight design Easy plug-and-play installation Ideal for DIY humidifiers and aroma diffusers 📋 Technical Specifications Product Type: USB Ultrasonic Humidifier Driver Kit Power Input: USB Type-C Female Operating Voltage: DC 4.5V–5V Input Voltage: 5V USB Operating Current: 300mA (Typical) Power Consumption: 2.5W–3W Rated Power: 2W Operating Frequency: 108KHz ±2KHz Atomizer Quantity: 4 Ceramic Atomizer Discs Atomization Technology: Ultrasonic Mist Output: High Density Fine Mist Driver Board: Ultrasonic Oscillation Control Module Cooling Method: Natural Cooling Power Connector: USB Type-C Female Socket Material: Ceramic Atomizer Discs + PCB Driver Board 🔧 Applications Suitable for: DIY USB Humidifiers Aroma Diffusers Replacement Humidifier Modules Decorative Fog Makers Hydroponic Systems Smart Garden Projects Terrariums & Vivariums Indoor Plant Humidification Science & Educational Projects Prototype Development DIY Electronics Projects 📦 Package Includes 1 × Ultrasonic Driver Circuit Board 4 × Ceramic Ultrasonic Atomizer Discs ⚠️ Note Use only clean water for optimal performance and longer atomizer life. Do not operate the module without water. Product images are for illustrative purposes only. The actual product may vary slightly depending on the manufacturing batch.
XT30 Connector Male-Female Pair – High-Current Plug for RC Drones, LiPo Batteries & DIY Electronics
[Power Connector] The XT30 Connector Male-Female Pair is a compact, high-quality power connector designed for reliable high-current applications. Made from durable nylon material with gold-plated terminals, the XT30 provides a secure, low-resistance connection ideal for RC drones, Li-Po batteries, ESCs, quadcopters, FPV systems, robotics projects, and DIY electronics. Its tight-fit design prevents loosening during vibration and high-speed operations, making it a popular choice for RC hobbyists and electronics builders. The connector is easy to solder, heat-resistant, and capable of handling continuous high currents without overheating. Lightweight and compact, the XT30 is perfect for small to medium power setups requiring stable, efficient power delivery. ✅ Features High-current XT30 connector pair (Male + Female) for secure power transfer Gold-plated contacts provide low resistance and excellent conductivity Heat-resistant nylon shell ensures durability under high load Compact and lightweight design ideal for drones and portable devices Provides strong anti-loosening grip for vibration-heavy applications Easy to solder for DIY battery packs and electronics projects Suitable for LiPo batteries, ESCs, FPV equipment, robotics, RC models Handles high continuous current safely without overheating 📘 Specifications Connector Type: XT30 (Male + Female Pair) Material: High-temperature nylon Contacts: Gold-plated, low-resistance Current Rating: 15A–30A (continuous depending on setup) Voltage Compatibility: Suitable for LiPo battery packs (2S–6S) Wire Compatibility: 16–18 AWG recommended Applications: Drones, RC planes, FPV systems, robotics, battery packs, DIY electronics Durability: High mechanical strength and vibration resistance 📦 Package Includes 1 × XT30 Male Connector 1 × XT30 Female Connector
Out of stockXT60 Female Plug Battery Connector Panel Mount Type
[Power Connector] The XT60E-F Female Plug Battery Connector is a reliable and high-performance panel mount power connector designed for high current applications up to 30A. Manufactured using high-temperature resistant nylon housing and gold-plated brass contacts, this connector ensures excellent electrical conductivity and durability even under demanding conditions. The XT60E-F panel mount design allows easy installation on battery enclosures, power distribution panels, and charging stations. Its mechanical mounting holes provide secure installation while the solder terminals allow convenient wiring with thick gauge cables up to 12 AWG. This connector is widely used in LiPo battery packs, RC models, drones, robotics, electric vehicles, power supplies, and DIY battery systems. The gold-plated contacts reduce resistance and improve current flow, ensuring stable and efficient power transfer. The XT60E-F connector is fully compatible with standard XT60 male connectors, making it a reliable solution for high-current power connections in professional and hobby electronics projects. ⭐ Key Features XT60E-F female panel mount connector High current capacity up to 30A Gold-plated brass contacts High temperature resistant nylon housing Secure panel mounting design Compatible with XT60 male connectors Supports wire sizes up to 12 AWG Ideal for LiPo batteries, RC models, drones and robotics 🔧 Technical Specifications Model: XT60E-F Connector Type: XT60 Female Panel Mount Rated Current: 30A Contact Material: Brass Contact Plating: Gold Plated Housing Material: High-Temperature Nylon Mounting Type: Panel Mount Orientation: Straight Compatible Wire Size: Up to 12 AWG 🎯 Applications LiPo battery packs RC cars and drones Electric vehicles and robotics Power distribution systems Battery chargers and adapters DIY battery projects 📦 Package Includes 1 × XT60E-F Female Plug Battery Connector (Panel Mount Type)
Crocodile Alligator Clip 50 mm Black and Red
Description: An alligator clip, also called a spring clip, creates a temporary electrical connection using a simple mechanical design.It gets its name because the jaws resemble an alligator or crocodile’s mouth, opening and closing to grip objects securely.The clip works like a spring-loaded clothespin that uses tapered, serrated jaws to hold wires or metal parts tightly.A spring pushes the jaws together, allowing the clip to grip objects and maintain a reliable electrical connection.Manufacturers design these clips for electronics testing, enabling quick connections without soldering or permanent joints.One jaw usually connects to a wire by crimping or soldering for efficient current transfer.Some clips use a bent jaw forming the inner contact of a 15 mm to 4 mm female banana jack.This design allows a fast, non-permanent connection between test circuits and laboratory instruments.A plastic cover or boot surrounds the clip to prevent short circuits and protect users from accidental shocks.Engineers and students use these clips widely in testing, prototyping, and educational experiments. Applications: Technicians use small clips (15 mm–40 mm) in electrical laboratories, schools, and college labs for quick test connections.Large clips, called automotive clips or battery clamps, use solid copper for low resistance and strong current flow.Users connect these large clips with thick insulated copper cables between automobile batteries or heavy electrical systems.Hobbyists and professionals rely on these clips for safe, reusable, and efficient electrical connections. Product Example: Check the Crocodile Alligator Clip 50 mm – Red and Black, made from durable stainless steel with a protective plastic shroud.Its spring-loaded jaws open wide to grip different wire sizes securely during testing or circuit connection.The serrated teeth ensure a strong, slip-free grip that maintains stable electrical contact during operation. Package Includes: 1 × Crocodile Alligator Clip 50 mm (Black and Red)
Out of stock2.1 x 5.5 mm Male and Female DC Power Pigtail Connectors with 22CM wire
[Power Connector] DC Jack Male and Female Power Connector With Wire 5.5×2.1mm DC Jack, also known as a power jack, DC power jack, male jack, male plug, etc, is used to give external DC power to any device or board. It has a cylindrical miniature size. It is a perfect option to give direct external power to the board or any device. This product is known as CCTV Devices DC 5.5×2.1mm Male and female 2-Wire Lead Jack Power Cable Connector, 2.1mm Male and Female to 30cm Cable, 5.5X2.1mm 12V DC Power Plug Male and Female Jack Plug Cable, 5.5mm x 2.1mm DC Jack Connectors Power Extension Cable. Features/Specs: Material: PVC CCTV Camera power connection line Connector Type: 5.5mm X 2.1mm DC power jack: Male and Female To Pigtail Supports maximum current: 5A Voltage Rating: 3.3V to 24V Great for short-distance connection Simple & Professional appearance for cabling Easier for installation save time and money Easy to use Cable Length: 22cm(male and female each) Color: Black & Red Weight: 15gm Package Includes: 1 x 2.1 x 5.5 mm Male and Female DC Power Pigtail Connectors Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
USB Type-C Panel Mount Female Connector 2 Pin | DIY Charging Socket Port
[Power Connector] The USB Type-C Panel Mount Female Connector is a compact and durable socket designed for DIY electronics and custom enclosures. It allows easy integration of Type-C charging ports into projects such as power banks, speaker boxes, and embedded devices. This connector features a panel mount design, making it simple to install securely on plastic or metal enclosures. As a result, it provides a clean and professional finish for your DIY builds. In addition, the connector supports stable power transfer and is suitable for charging applications and low-power devices. Because of its small size and reliable connection, it is widely used in portable electronics and repair projects. Moreover, the two-pin configuration ensures simple wiring, which makes it ideal for beginners as well as advanced users. 🔹 Key Features USB Type-C female connector Panel mount design for easy installation Compact and lightweight Stable and reliable connection Suitable for DIY electronics projects Easy 2-pin solder connection Durable plastic housing 🔹 Applications DIY power banks Bluetooth speaker projects Embedded systems Charging ports for custom enclosures Electronics repair projects IoT devices 🔹 Package Includes 1 × USB Type-C Panel Mount Female Connector
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
Out of stockBlack Plastic DC24V 20MM 12LED Air Humidifier Mist Maker Nebulizer
[Ultrasonic Sensor] This is a DC24V 20MM 12LED Alloy Air Humidifier Mist Maker Nebulizer. Buy this powerful DC 24V Ultrasonic Humidifier device suitable for atomization with a plate diameter of 10 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 20MM 12LED Ultrasonic Humidifier Mist Maker
ESP8266 WiFi 5V 1 Channel Relay Module Good Quality
[Relay Module] General Info : Onboard ESP8266 WIFI module, AP mode can be connected at the same time 5 client The module has two ways to work: (i) mobile phone directly mounted on the WIFI module; (ii) mobile phone and WIFI module also carried on the router. How to use : Onboard ESP8266 WIFI module has three operating modes: STA (client), AP (hot), STA + AP (client + hot), according to the work of the module to select the corresponding WIFI module mode of operation The The module needs to use the serial debugging software on the computer and USB to TTL module to send AT commands to configure the WIFI module, USB to TTL module RX, TX, GND pin, then the module on the TX, RX, GND pin, IN +, IN – 5V power supply. Usage Instructions 1) Hardware Connection: Insert the pre-programmed ESP-01/01S module into the onboard 2×4 pin female header (as shown in the diagram below). 2) Power Supply : Connect a DC 5V-12V power source to the module, with the positive terminal to VCC and the negative terminal to GND. 3) Mobile WiFi Connection : Open your phone's WLAN settings, search for and connect to the ESP8266-XXXX hotspot (default password: 12345678). 4) Launch Control APP : Run the pre-installed ESP8266 Controller application on your Android phone. 5) Configure IP Address : Enter the default IP address: 192.168.1.1 in the APP to remotely control the relay switch via your phone. Transmission distance: Open environment, the mobile phone mounted on the WIFI module when the maximum transmission distance of 400m. When the WiFI module and mobile phone at the same time carried on the router when the transmission distance according to the router’s signal weakly; Board function description : IN +, IN-: 5V power input; TX, RX, GND: Serial debug pin; Onboard the ESP8266 WIFI module has three work modes: STA (client), AP (hot), the STA + Ap( hot +client), according to the workings of a module to the corresponding choice of WIFI module working mode. Module need before use serial debugging software and USB to TTL module send serial command was carried out on the WIFI module configuration (don’t power outages after configuration is complete, as some of the parameters of WIFI module cannot be saved when the power is cut off), mobile phone and WIFI module after establishing a network connection can use the phone APP control relay. Control Commands : When cell phone equipped with WiFi module sends commands in the following order: (The default baud rate 115200) AT+CWMODE=2, namely AP mode is selected. AT+RST, reset. AT+CIPMUX=1, open multiple connections. AT+CIPSERVER=1,8080, configure the TCP server, set the port. AT+CIOBAUD=9600 set the baud rate to 9600. (working in relays to control the baud rate 9600). AT+CIFSR to view the AP mode IP address, such as the APIP, “192.168.4.1”. Cell phone WIFI signal connection name starts with AI-THINKER or ESP8266. In the “TCP connection” address and port into the APP, such as 192.168.4.1 and 8080. Click on the grey box relays can be controlled. Features: Onboard Module: ESP8266 wifi module; in AP mode it can connect with 5 Clients at the same time Operating Way: cellphone carried on wifi module; cellphone and wifi module carried on the same router, and use the APP to control relay Diode effusion protection. Short response time
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
4×4 Matrix 16 Keypad Keyboard Module 16 Button MCU
[Input Module] This DC 12V 4×4 Matrix Keypad Membrane Switch is high-quality soft touch feeling button keypad with 100 million life-stroke lifespans and good resistance to environmental conditions. This DC 12V 4×4 Key Matrix Membrane Switch Keypad is a high-quality product at very low cost for your application needs. This 16-button keypad provides a useful human interface component for microcontroller projects. Convenient adhesive backing provides a simple way to mount the keypad in a variety of applications. The Keypad 4×4 features a total of 16 buttons in Matrix form. This is a membrane keypad with no moving parts. A female 8-pin berg connector is require for interfacing it with your microcontroller circuits. Features: Ultra-thin design & adhesive backing provides easy integration to any project Excellent price-performance ratio Easy communication with any microcontroller 5 pins 2.54mm pitch connector,4x 4type 16 keys. Sticker can peel off for adhesive mounting. Used widely in industrial and home electronic equipments, instrument, etc. This allows a microcontroller to scan the 8 output pins to see which of the 16 buttons is being pressed. Package Includes: 1 x 4×4 Matrix Membrane Type Keypad -16 Keys Specifications: Voltage(V) DC 35V Operating Current (A) 0.1 Contact Resistance 500 Insulation Resistance (M) 100 Dielectric Strength 250VRms Length (mm) 165 Width (mm) 70 Height (mm) 1 Weight (gm) 7 * Product Images are shown for illustrative purposes only and may differ from actual product.
40×1 Female Berg Strip
[Header Pin] Features : Number of Pins: 40. Pin Spacing(pitch): 2.54 mm. Pin height: 11.6 mm. Square Posts. Stackable – End to End and Side to side. It can be manually broken for the length needed. Standoffs allow cleaning of solder contaminants.
USB Connector, USB Type A, USB 2.0, Receptacle, 4 Ways, PCB Mount
[USB Socket] This is a USB Type A Female Solder Jacks Connector PCB Socket. It complies with the Universal Serial Bus implementers forum. Multiple devices can be connected to this connector. Features: Durable. Robust. Supports USB 2.0 hardware. Package Includes: 1 x Amphenol USB Connector, USB Type A, USB 2.0, Receptacle, 4 Ways, PCB Mount
USB 2.0 Female A Type Standard Plug 4 Pin Connector for PCB Socket (Silver)
[USB Socket] Steel Material No batteries Battery Non Rechargeable Width x Height: 1 inch x 1 inch
USB Type-C Female Panel Mount Connector with Wire Cable
[Power Connector] USB Type-C Female Panel Mount Connector with Wire Cable USB Type-C Female Socket • Panel Mount Design • Cable Type • DIY & Electronics Applications The USB Type-C Female Panel Mount Connector with Wire Cable is a compact and durable connector designed for DIY electronics, portable devices, charging ports, embedded systems, automotive projects, and custom electronic enclosures. Featuring a USB Type-C female socket with a pre-attached wire cable, this connector allows quick integration into power and charging applications without requiring complex PCB assembly. Its threaded panel mount design enables secure installation on plastic, metal, or wooden enclosures, while the flexible cable provides convenient wiring for power input and charging circuits. This connector is ideal for USB-powered devices, battery projects, LED systems, development boards, and electronic prototypes where a reliable USB Type-C power connection is required. The compact construction makes it suitable for custom enclosures, charging ports, DIY power supplies, and embedded electronic projects. ⭐ Key Features USB Type-C female socket Non-waterproof panel mount design Threaded mounting body for secure installation Pre-attached wire cable for easy wiring Compact and lightweight construction Durable plastic housing Reliable power connection Easy installation on panels and enclosures Suitable for charging and power applications Ideal for DIY electronics and embedded projects 📋 Technical Specifications Product Type: USB Type-C Female Panel Mount Connector Connector Type: USB Type-C Female Mounting Type: Panel Mount (Threaded) Cable Type: Pre-attached Wire Lead Housing Material: Plastic Color: White Waterproof: No Application: Power Input & Charging Connection 🔧 Applications DIY Electronics Projects USB Charging Ports Power Bank Enclosures Arduino and ESP32 Projects Embedded Systems Portable Devices LED Lighting Systems Automotive Electronics Battery Charging Modules Custom Electronic Enclosures Robotics Projects Electronic Prototyping 📦 Package Includes 1 × USB Type-C Female Panel Mount Connector with Wire Cable ⚠️ Note Verify wire polarity before connecting power. Designed primarily for USB power and charging applications. This connector is not waterproof and should be used in dry environments or protected enclosures. Product appearance may vary slightly depending on the manufacturing batch.
DC Power Connectors Female Jack Panel Mount Bulkhead 5.5*2.1mm 2pin
[Power Connector] 🔌 DC 5.5 × 2.1mm Female Power Jack Socket Panel Mount Connector Panel Mount • 5A Current Rating • Silver-Plated Contacts • Durable & Reliable The DC 5.5 × 2.1mm Female Power Jack Socket is a high-quality panel mount DC power connector designed for reliable DC power connections in electronic equipment and DIY projects. It features a standard 5.5mm outer diameter and 2.1mm inner diameter, making it compatible with most DC power adapters and barrel plugs. The connector utilizes silver-plated copper alloy contacts to provide excellent electrical conductivity, low contact resistance, and outstanding corrosion resistance. The durable ABS plastic housing offers high mechanical strength and long-lasting performance, while the panel mount design ensures secure installation in enclosures, control panels, and electronic equipment. Designed for frequent use, the connector supports approximately 10,000 insertion and removal cycles, making it suitable for both commercial and industrial applications. ⭐ Features Standard 5.5 × 2.1mm DC female power jack Panel mount design for secure installation High-quality silver-plated copper alloy contacts Excellent electrical conductivity Low contact resistance High corrosion resistance Durable ABS plastic housing Long mechanical life (up to 10,000 insertion cycles) Easy solder or PCB connection Suitable for DC power applications up to 48V 📋 Technical Specifications Product Type: DC Power Jack Socket Connector Type: Female Barrel Size: 5.5mm × 2.1mm Mounting Type: Panel Mount / PCB Mount Installation Angle: Straight / Right Angle (Depending on Variant) Termination Type: Through Hole / Solder Contact Material: Silver-Plated Copper Alloy Housing Material: ABS Plastic Rated Voltage: 48V AC/DC Rated Current: 5A Insulation Resistance: Minimum 1000MΩ Dielectric Withstand Voltage: 500VAC Mechanical Life: Approx. 10,000 Mating Cycles Color: Black 🔧 Applications Suitable for: DC Power Supplies CCTV Cameras LED Lighting Systems Audio Equipment Video Equipment Communication Devices Arduino Projects Raspberry Pi Projects Robotics DIY Electronics Security Systems Computer Accessories Consumer Electronics Test Equipment Industrial Control Panels 📦 Package Includes 1 × DC 5.5 × 2.1mm Female Power Jack Socket Panel Mount Connector ⚠️ Note Compatible with standard 5.5 × 2.1mm DC barrel plugs. Product images are for reference only. The actual product may vary slightly depending on the manufacturing batch.