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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Out of stockMotherboard Brass Standoffs (30 pc)
Brass M3 standoff + screw kit for ATX/mATX/ITX mounting in PC cases.
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.
Almirah Wardrobe Switch – 250V AC 6A Momentary Push-to-Off Switch
[Mechanical Switches] Almirah Wardrobe Switch – 250V AC 6A Momentary Push-to-Off Switch The Almirah Switch is a compact single-pole momentary push-to-off switch designed for use in almirahs, cupboards, wardrobes, cabinets, and furniture lighting applications. It provides instantaneous switching action and is suitable for applications where an electrical circuit needs to be switched according to the opening or closing of a cabinet or door. The switch features a high-grade polycarbonate body and brass contacts, providing reliable electrical conduction and durability for regular use. Its compact design is intended to fit standard almirah cutouts and supports panel or surface mounting with screw-type wire terminals. With a rating of 250V AC and 6A, an IP20 protection level, and a mechanical life of more than 10,000 operations, this switch is suitable for indoor furniture and cabinet applications. ⭐ Key Features 250V AC rated voltage 6A current rating Single-pole design Momentary push-button operation Push-to-Off action Instantaneous response High-grade polycarbonate construction Brass electrical contacts Compact design for standard almirah cutouts Panel or surface mounting Screw-type wire terminals Glossy white finish Mechanical life of >10,000 operations IP20 protection RoHS compliant 📋 Technical Specifications Product Type: Almirah Switch Switch Type: Momentary Actuator Type: Push Button Circuit Type: Single Circuit Number of Poles: Single Pole Rated Voltage: 250V AC Maximum Voltage: 250V AC Current Rating: 6A Maximum Current: 6A Response Time: Instantaneous Automation Grade: Manual Material: High-Grade Polycarbonate Contact Material: Brass Wire Terminal: Screw-Type Mounting Type: Panel / Surface Mount Protection Level: IP20 Finish Type: Glossy Color: White Operating Temperature: -10°C to +50°C Temperature Range: -10°C to +50°C Mechanical Life: >10,000 Operations Insulation Resistance: 100MΩ Minimum @ 500V DC Contact Resistance: 50mΩ Stroke: Standard Push-to-Off Action Size: Compact; fits standard almirah cutout Weight: Approximately 20g Number of Modules: Single Module UV Stabilized: Normal RoHS Compliance: Yes 🔌 Operation The switch provides a push-to-off momentary action. It is designed for applications where the switch operates automatically through the physical movement of a cupboard, wardrobe, almirah, or cabinet door. 🔧 Applications Almirah Lighting Cupboard Lighting Wardrobe Lighting Cabinet Lighting Furniture Lighting Storage Cabinet Applications Office Cabinets Home Furniture Control Panels Indoor Electrical Applications 🛠️ Installation The switch can be installed using its panel or surface mounting arrangement. Fit the switch into a suitable cutout and secure it firmly. Connect the wires to the screw-type terminals with the power supply switched off during installation. 📦 Package Includes 1 × Almirah Switch – White, 250V AC 6A ⚠️ Precautions Disconnect the power supply before installation or wiring. Do not exceed the 250V AC / 6A rating. Ensure screw terminals are tightened securely. Use suitable wiring for the connected load. Intended primarily for indoor applications. IP20 protection does not provide waterproof protection. Do not use in wet or exposed outdoor environments. Replace the switch if contacts become damaged or operation becomes unreliable. ❓ Frequently Asked Questions Q: What is the voltage and current rating?A: The switch is rated for 250V AC and 6A. Q: What type of switch is it?A: It is a single-pole momentary push-to-off switch. Q: Where can it be installed?A: It is designed for almirahs, cupboards, wardrobes, cabinets, and similar furniture applications. Q: What material is used for the switch?A: The body is made from high-grade polycarbonate, with brass contacts. Q: What is the mechanical life?A: The supplied specification states a mechanical life of more than 10,000 operations.
0.3–4mm Mini Drill Chuck with Key & 2.3mm Brass Shaft Adapter for 555 DC Motor
[General DC Motor] 🔧 0.3–4mm Mini Drill Chuck with Key & 2.3mm Brass Shaft Adapter for 555 DC Motor 0.3–4mm Chuck Capacity • JT0 Drill Chuck • 2.3mm Brass Shaft Adapter • Ideal for DIY Mini Drill Machines The 0.3–4mm Mini Drill Chuck with Key and 2.3mm Brass Shaft Adapter is a high-quality accessory designed for converting 555 DC motors into compact mini drilling machines. This complete set includes a precision JT0 drill chuck, a 2.3mm brass motor shaft adapter, and a chuck key for secure tightening and loosening of drill bits. Manufactured from high-carbon steel, the drill chuck provides excellent durability, wear resistance, and high clamping accuracy. It securely holds drill bits ranging from 0.3mm to 4.0mm, making it suitable for precision drilling in wood, plastic, acrylic, PCB boards, resin, aluminum, and other soft materials. The included 2.3mm brass shaft adapter offers a precise fit on 555 DC motor shafts, ensuring smooth power transmission with minimal vibration. Its corrosion-resistant brass construction provides excellent durability and reliable performance for long-term use. This mini drill chuck kit is widely used in DIY mini drill machines, PCB drilling, model making, hobby crafts, jewelry making, electronics repair, and educational projects. ⭐ Features Precision 0.3–4mm JT0 mini drill chuck Includes 2.3mm brass shaft adapter High-carbon steel chuck construction Brass motor shaft connector Secure key-operated chuck mechanism High clamping accuracy Strong impact and wear resistance Smooth and stable operation Easy installation on 555 DC motors Suitable for DIY mini drill machines Compatible with drill bits from 0.3mm to 4mm Compact and lightweight design 📋 Technical Specifications Product Type: Mini Drill Chuck Kit Chuck Capacity: 0.3mm – 4.0mm Chuck Type: JT0 Keyed Drill Chuck Chuck Material: High-Carbon Steel Adapter Material: Brass Motor Shaft Diameter: 2.3mm Connection Type: JT0 Taper Tightening Method: Chuck Key Compatible Motor: 555 DC Motor Application: Mini Electric Drill Conversion Color: Silver & Brass 🔧 Applications Suitable for: DIY Mini Drill Machines 555 DC Motor Projects PCB Drilling Electronics Repair Model Making Jewelry Making Woodworking Plastic Drilling Acrylic Drilling Resin Crafts Hobby Projects Educational Projects Small Precision Drilling Prototype Development 📦 Package Includes 1 × 0.3–4mm JT0 Mini Drill Chuck 1 × Chuck Key (Spanner) 1 × 2.3mm Brass Shaft Adapter ⚠️ Note Designed for 2.3mm diameter motor shafts. Recommended for 555 DC motors and compatible motors with a 2.3mm shaft. Suitable for drilling soft materials such as wood, plastic, acrylic, PCB, and aluminum. Not intended for heavy-duty industrial drilling or hammer drilling applications. Product appearance may vary slightly depending on the manufacturing batch.
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)
18650 SMD/SMT High-Quality Single Battery Holder
[Lithium Battery Holder] 18650 SMD/SMT High-Quality Single Battery Holder The 18650 SMD/SMT Single Battery Holder is a compact PCB-mount battery holder designed to securely hold a single 18650 Li-ion rechargeable cell. Its SMD mounting pins allow the holder to be directly soldered onto a PCB, eliminating the need for loose battery wires and making it suitable for compact electronic designs. Multiple electronics retailers list the same holder with ABS construction, gold-plated contacts, stainless-steel contact material and dimensions of approximately 77 × 21 × 15mm. ⭐ Key Features Designed for 1 × 18650 lithium-ion cell SMD/SMT PCB mounting design Lightweight and compact Directly mounts onto a PCB Eliminates loose battery wiring Gold-plated brass contact points Stainless-steel battery contact/shrapnel High-quality ABS body Secure battery holding mechanism Easy battery insertion and replacement Reusable design Good environmental and temperature resistance Suitable for compact PCB projects 📋 Technical Specifications Product Type: 18650 SMD/SMT Battery Holder Number of Cells: 1 Compatible Battery: 18650 Li-ion cylindrical cell Mounting Type: SMD / SMT Body Material: ABS Contact Material: Stainless Steel Contact Plating: Gold Contact Construction: Gold-plated brass contact points with stainless-steel battery retention contacts Color: Black Operating Temperature: -40°C to 180°C Dimensions: Approx. 77 × 21 × 15mm (L × W × H) Weight: Approx. 8g 🔋 Battery Compatibility This holder is designed specifically for a single 18650 cylindrical Li-ion cell. It provides mechanical support and electrical contacts between the battery and the PCB; the holder itself does not provide battery charging, overcharge protection or BMS functionality. 🔧 Applications PCB battery-powered projects DIY electronics Arduino projects ESP32 and microcontroller projects Robotics Portable electronic devices Battery-powered gadgets IoT devices Custom PCB designs Rechargeable battery projects Prototyping and development boards 🛠️ Installation Position the holder on the PCB according to the PCB footprint. Ensure the positive and negative contacts are correctly oriented. Solder the SMD terminals to the PCB. Allow the solder joints to cool and inspect them for proper connection. Insert a compatible 18650 battery with the correct polarity. Verify the battery voltage and circuit polarity before powering the project. 📦 Package Includes 1 × 18650 SMD/SMT High-Quality Single Battery Holder ⚠️ Precautions Use only a compatible 18650 cylindrical Li-ion cell. Check the positive and negative polarity before inserting the battery. The holder is only a mechanical/electrical battery holder; it does not include a charger or BMS. Do not short-circuit the contacts. Do not force an incorrectly sized battery into the holder. Ensure the PCB solder joints are secure before inserting the battery. Do not exceed the electrical limits of the holder or PCB. Remove the battery before soldering or servicing the PCB.
XT90 Male Female Connector Pair 90A High Current Battery Connector with Caps
[Power Connector] The XT90 Connector Pair is a high-current electrical connector designed for demanding power applications. Manufactured using high-temperature nylon and gold-plated spring contacts, it provides excellent conductivity, low resistance, and reliable long-term performance. In addition, the XT90 connector features a polarized design that prevents reverse polarity connection. As a result, it improves safety and protects connected batteries and electronic equipment from accidental wiring mistakes. Because of its robust construction, the connector can handle continuous currents up to 90A while maintaining a secure and stable electrical connection. Furthermore, the gold-plated contacts help reduce power loss and improve current transfer efficiency. The semicircular solder terminals simplify wire installation and support large wire sizes up to 8AWG, making the connector suitable for high-power applications. Moreover, the tight-fit design ensures a strong connection even in environments subject to vibration and movement. This XT90 connector set is widely used in RC aircraft, drones, electric scooters, e-bikes, battery packs, robotics systems, solar power projects, and DIY electronics applications. 🔹 Key Features High-current XT90 connector pair Gold-plated spring contacts High-temperature nylon housing Reverse polarity protection design Low resistance and high conductivity Supports up to 90A continuous current Accepts wire sizes up to 8AWG Easy soldering terminals Secure and vibration-resistant connection Includes protective cover caps 🔹 Technical Specifications Connector Type: XT90 Contact Material: Gold-Plated Brass Housing Material: High-Temperature Nylon Current Rating: 90A Continuous Peak Current: 120A+ (Short Duration) Voltage Rating: DC 500V Max Wire Compatibility: Up to 8AWG Polarity Protection: Yes Connection Type: Solder Type Color: Yellow 🔹 Applications This XT90 connector is suitable for: RC aircraft RC cars and boats FPV drones Electric bicycles (E-Bikes) Electric scooters Battery packs Solar energy systems Robotics projects High-current DC power systems 🔹 Package Includes 1 × XT90 Male Connector 1 × XT90 Female Connector 2 × Protective Cover Caps
Out of stockQuadcopter Drone Frame F450
[Drone Frame, Uncategorized] F 450 Quadcopter 4-Axis Strong Frame (Multicolour) Width: 450mm Height: 55mm Weight: 295g (without electronics) Material: Glass Fiber + Polyamide-Nylon Motor Mount Bolt Holes: 16/19mm Built from high-quality glass fibre and ultra-durable polyamide nylon. Arms are reinforced and much stronger to prevent and reduce breakage at hard landings. Integrated PCB connections for direct soldering your ESCs. Colored arms for orientation to keep you flying in the right direction. Large mounting tabs on main frame bottom plate for easy camera or other accessories mounting. Pre-threaded brass sleeves for all of the frame bolts. Easy assembly. Package includes : 1 x Top and Bottom with Integrated PCB. 2 x F450 arms Red 2 x F450 arms White 1 x Accessories set. This Q450 Quadcopter Frame is made from Glass Fiber which makes it tough and durable. They have the arms of ultra-durable Polyamide-Nylon which are the stronger molded arms having a very good thickness so no more arm breakage at the motor mounts on a hard landing. The arms have support ridges on them, which improves stability and provides faster forward flight.
3 Pin 5.08mm Pitch Plug-in Screw Terminal Block Connector
[Terminal Connector] 3 Pin 5.08mm Pitch Plug-in Screw Terminal Block Connector The 3 Pin 5.08mm Pitch Plug-in Screw Terminal Block Connector is a compact and reliable electrical connector designed for securely connecting wires to PCBs. Its plug-in design allows convenient connection and disconnection while the screw terminals provide a firm and stable grip on the connected wires. Made with a durable PBT (Polybutylene Terephthalate) housing, the connector offers good mechanical strength, heat resistance, and electrical insulation. The terminal contacts are made from nickel-plated brass, while the pin header uses tin-plated brass for reliable electrical conductivity and corrosion resistance. The compact and lightweight design makes this terminal block suitable for power connections, control circuits, industrial electronics, DIY projects, and PCB-based applications. ⭐ Key Features 3-pin plug-in screw terminal block 5.08mm pin pitch Secure screw-type wire connection Easy plug-in and removal design Tin-plated brass pin header Nickel-plated brass contacts Durable PBT housing Good electrical insulation Heat-resistant construction Compact and lightweight Suitable for PCB mounting 📋 Technical Specifications Product Type: Plug-in Screw Terminal Block Connector Number of Pins: 3 Pitch: 5.08mm Connector Type: Plug-in / Pluggable Terminal Block Terminal Type: Screw Terminal Pin Header Material: Tin-Plated Brass Contact Material: Nickel-Plated Brass Housing Material: PBT (Polybutylene Terephthalate) Flammability Rating: UL94-V0 Mounting: PCB Mount Connection Type: Wire-to-PCB 🔧 Applications PCB Power Connections Control Panels Industrial Electronics Power Supply Boards Motor Controller Boards Arduino & Microcontroller Projects DIY Electronics Automation Systems LED Driver Boards Battery & Power Distribution Electronic Prototyping 📦 Package Includes 1 × 3 Pin 5.08mm Pitch Plug-in Screw Terminal Block Connector ⚠️ Note Ensure the wire is securely tightened inside the screw terminal before powering the circuit. Check the connector pitch and PCB footprint before installation. Actual color and appearance may vary slightly depending on the manufacturing batch.