Voltage and current sensors
ACS712 20 A Hall-Effect Current Sensor Module – AC/DC Measurement
The ACS712-20A Hall-effect sensor module provides galvanically isolated measurement of DC and AC current up to ±20 A.
Voltage and current sensors
The ACS712-20A Hall-effect sensor module provides galvanically isolated measurement of DC and AC current up to ±20 A.
Arduino modules
The MC-105 is a compact high-voltage step-up pulse transformer that converts a 3.7–6 V DC input into very high voltage pulses of up to 50,000 V.
Thermometers and temperature ICs
DS18B20 digital temperature sensor by Dallas Semiconductor (Maxim Integrated).
Switching modules
Compact, easy-to-use IRF520 MOSFET module for switching 0–24 V DC loads using a microcontroller or another digital device.
Display modules
Compact 0.96-inch colour IPS display with 80 × 160 px resolution and ST7735 controller. IPS technology delivers more accurate colours and wider viewing angles than standard TFT screens. Ideal for Arduino, ESP32 and Raspberry Pi projects needing a small full-colour display.
Battery holders
The DIP-style 18650 battery holder makes it easier to install, replace and connect 18650 cells in electronics projects.
Transistors
The 2N3904 transistor is widely used to amplify low-level signals. Its compact TO-92 package is easy to integrate into circuits. Arduino projects commonly use it for switching LEDs and small loads or interfacing with sensors and communication modules.
Inductors
This 47 µH inductor is suitable for many electronic circuits. It stores energy in a magnetic field as current flows through its winding.
Step-down ICs
The 78M05 is a fixed +5 V linear regulator in a compact three-pin TO-252 package: input, ground and output.
Step-down ICs
The AMS1117 is an integrated voltage regulator used to stabilize the output voltage in electronic devices.
Soldering flux
AMTECH NC-223-ASM is a high-quality resin-based, no-clean soldering flux for SMD and BGA components. It improves wetting, reduces oxidation and helps produce reliable solder joints.
Atmel
An innovative Arduino Nano 3.0 board with an ATmega328P microcontroller, CH340 USB interface and modern USB-C connector. A reliable, practical platform for electronics projects.
Atmel
Arduino Uno R3 development board based on the popular Arduino platform, offering flexibility and ease of use for electronic prototypes and experiments.
Voltage and current sensors
This Arduino DC 0–25 V voltmeter module is an easy-to-use sensor for measuring DC voltage in the 0–25 V range. It connects readily to an Arduino Uno or another compatible Arduino microcontroller.
Battery management (BMS) modules
Battery management and protection modules for battery packs used in a range of applications.
TRIACs (DIP)
The BT137-600E is a 600 V TRIAC in a TO-220 package used to switch alternating current (AC), for example in lighting systems, motor controls and relay circuits.
TRIACs (SMD)
The BT137S-600E is a high-voltage TRIAC in a TO-252 package, suitable for lighting systems, motors, relays and power controllers.
Microcontrollers (SMD)
The microcontroller operates at 3.3 V or 5 V and supports several power-saving modes, including Sleep and Standby. The described memory configuration is 2 KB SRAM and 16 KB flash.
WCH development boards
The CH32V003F4P6 development board is based on a WCH RISC-V microcontroller. It supports development with the Arduino environment, making it convenient for experimenting with and prototyping electronic projects.
Microcontrollers (SMD)
The CH32V003J4M6 is an efficient 32-bit WCH microcontroller based on the QingKe RISC-V RV32EC core. It combines good performance with low power consumption for a wide range of electronic applications.
Programmers
This module provides a quick, convenient way to connect to and program Arduino boards and other devices, including chips from Atmel, ST and Espressif.
WCH development boards
CH582F development board with a 32-bit RISC-V4A core running up to 60 MHz, Bluetooth 5.0 support, USB Host/Device and multiple peripherals (UART, SPI, I2C, ADC, PWM). Powered from 3.3–5 V; ideal for IoT and BLE projects.
Soldering tools and accessories
High-quality solder wire supplied by EUROKOMP.
LED diodes
The 38 mm, 3 V COB LED filament is a compact, energy-efficient light source with a long service life. Suitable for chandeliers, lamps, wall lights and other indoor lighting fixtures.
Bridge rectifiers (SMD)
The DB307S is a bridge rectifier used to convert alternating current (AC) into direct current (DC) in electronic circuits.
Connectors
5.5 × 2.1 mm DC power connectors with screw terminals for quick, solder-free connections. Ideal for LED strips, cameras and power adapters. Available in male and female variants.
Power supply modules
A high-power smart fast-charging module supporting multiple protocols (PD/QC/PPS), designed for desktop use or integration into custom DC power-supply solutions.
LED diodes
Imagine light that does not burn yet still brings a sense of warmth. This miniature component captures the cosy glow of an old oil lamp or a crackling fireplace, turning a simple lighting project into a charming decoration. 🔥
DENUINO
Introducing a new development board from DENUINO. Step into the future with DENUINO FUTURE, combining modern technology, excellent performance and an ESP32 controller. Designed for innovative electronics projects with long-lasting construction.
Arduino modules
The compact DFRobot Mini audio player is easy to use in electronic projects. It plays MP3, WAV and WMA files, communicates via UART and supports audio playback directly from an SD card.
Voltage and current sensors
Digital voltmeter for measuring DC voltage, with a large, easy-to-read LCD showing measurements in real time.
Espressif modules
The ESP-12F is a small, powerful WiFi module for Internet of Things (IoT) devices developed by Espressif Systems. It is based on the ESP8266 chip.
Espressif development boards
ESP32 development board with 4 MB flash memory and a USB-C connector. A powerful IoT platform with Wi-Fi and Bluetooth connectivity for wireless electronics applications.
Espressif modules
The compact ESP32E module offers Wi-Fi and Bluetooth connectivity, high processing performance and low power consumption, making it suitable for a wide range of Internet of Things (IoT) projects.
Arduino sensors
The ESP32-CAM is a compact WiFi and Bluetooth camera module with an ESP32-S microcontroller, 4 MB flash memory and a microSD slot. It comes with a USB-C programming board, so no separate USB-to-UART adapter is needed. Ideal for home cameras, AI experiments, facial recognition and IoT applications.
Raspberry Pi
Colour-coded 40-pin GPIO header in a 2 × 20 arrangement for Raspberry Pi Zero and other compatible boards. The pin colours make it easier to identify power, ground and GPIO signal connections.
MOSFET transistors (SMD)
The FDD8447L is a high-current, low-resistance MOSFET suitable for switch-mode power supplies, motors, relays and power-control circuits.
Distance sensors
The HC-SR04 uses ultrasonic waves to measure the distance between the sensor and an object. It is widely used in robotics, smart homes and industrial electronics.
Gyroscopes and accelerometers
The MPU-6050 six-axis motion sensor integrates a three-axis gyroscope and a three-axis accelerometer. Popular for its compact size, low cost and reliable performance.
Voltage and current sensors
Module for accurate voltage, current and power measurement via I2C, suitable for Arduino, ESP32 and other microcontrollers.
Voltage and current sensors
The INA226 is an advanced I2C sensor module designed to measure current, voltage and power with very high accuracy.
Voltage and current sensors
Advanced INA3221-based sensor module for monitoring voltage and current on three independent channels (CH1, CH2, CH3). Communicates over I2C or SMBus and measures current via R100 (0.1 Ω) shunt resistors.
MOSFET transistors (DIP)
The IRF3205PBF is a high-current MOSFET designed for low-loss, high-power switching applications, including inverters, motor control and power supplies.
MOSFET transistors (DIP)
The IRFZ44N is a reliable, affordable power MOSFET suitable for a wide range of applications. Its high continuous current capability makes it useful in power supplies, motor drivers, DC/DC converters, switching circuits, audio amplifiers and power-control projects.
Insulating and protective tapes
Self-adhesive insulating paper for 18650 cells and battery packs. Provides electrical insulation and protection from short circuits, withstands temperatures up to 150 °C, and is easy to cut and apply.
Soldering tools and accessories
Universal insulated jumper wires, 10 cm long and 0.8 mm in diameter, suitable for electronics projects and prototyping.
Breadboards and jumper wires
Male-to-male breadboard jumper wires are essential for solderless prototyping. Simply insert them into the breadboard sockets to connect components quickly and easily, without soldering or waiting for joints to cool.
Liquid solder and soldering materials
KEK Solder Paste 138 °C is a high-quality solder paste for low-temperature applications, including SMD soldering, electronics repairs and PCB rework.
Terminal blocks (DIP)
The KF301-3P screw terminal block is a reliable connector for safe, stable wire connections in electrical equipment and printed circuit boards.
Terminal blocks (DIP)
KF301 two-position screw terminal block.
Connectors
2-pin quick connectors for easy, secure, solder-free wire connections. Suitable for automotive wiring, LED strips and electrical installations. Water-resistant snap-fit design for easy installation.
Connectors
USB 3.1 Type-C female connector with a screw-mounting plate for DIY projects, repairs and power supply applications. Four-pin version suitable for charging and simple electrical connections. Compact 6.8 × 20.1 × 14.6 mm dimensions.
Connectors
High-current XT60/XT90 connectors with gold-plated copper contacts for RC models, batteries and power electronics. Low contact resistance, secure connection and high-current capability. Available as separate male and female variants.
Step-down ICs (DIP)
The L7805CV accepts 7–35 V input and provides a regulated 5 V output at up to 1.5 A. It is supplied in the commonly used TO-220 package.
DENUINO
😍 Decorative heart-eyes smiley LED module with 50 individually addressable WS2812B RGB LEDs. Compatible with ESP32, Arduino, ESP8266 and similar microcontrollers for lighting effects, WiFi/Bluetooth smart lamps, decorations and creative DIY projects. ✨
DENUINO
Decorative heart-shaped LED module with 30 individually addressable WS2812B RGB LEDs. Ideal for Arduino, ESP32, creative projects, gifts and lighting decorations.
SMD LED diodes
SMD 3535 3 V LED diode for repairing damaged television backlights.
SMD LED diodes
SMD 3535 6 V LED diode for repairing damaged television backlights.
Batteries and cells
LiitoKala 32700 is a high-capacity LiFePO4 rechargeable battery cell for a variety of applications.
Electronic components
The LiitoKala HG2 3000 mAh is a high-performance lithium-ion rechargeable cell intended for a variety of applications.
Step-down ICs
The LM2596S 3.3 V and 5 V switching regulator ICs efficiently reduce a higher input voltage. Maximum input voltage: 40 V.
Pulse and SpO₂ sensors
The MAX30102 is a biosensor for heart-rate and blood-oxygen (SpO₂) measurements. It integrates red and infrared LEDs, a photodetector and low-noise electronics with ambient-light rejection. Connects to Arduino, ESP32, STM32 and other microcontrollers through I2C.
Digital audio modules
Powerful, compact MAX98357 audio amplifier for electronic audio projects. It combines an I2S digital input with energy-efficient Class-D amplification for clean sound. Suitable for DIY and embedded audio applications.
Breadboards and jumper wires
Start prototyping and experimenting today! You never know where your electronics projects might lead.
Battery management (BMS) modules
Mini charging module with a USB-C connector for 3.7 V / 4.2 V Li-ion batteries, including 18650 cells. Suitable for power banks, Bluetooth earphones, smartwatches and other compact electronics. Supports CC/CV charging, automatic recharge and thermal regulation. Dimensions: 7.6 × 10 mm.
TV repair components
Compact PCB boards for repairing television backlights using 3535 LEDs. Easy to install; options with pre-soldered LEDs may also be available for faster repairs.
Vibration motors
Compact 3 V DC vibration motor operating at up to 12,000 rpm with low current consumption. Ideal for haptic feedback, alerts and wearable electronics projects. Use a transistor or MOSFET for control with microcontrollers such as ESP32.
DC pumps
Compact, low-voltage pump for water and other liquids, powered from 3.0–3.7 V DC. Suitable for medical equipment, home automation and beauty devices. The Slovak specification states up to 300 mL/min flow, up to 120 mA consumption and quiet operation.
Solenoids
This ultra-lightweight 7 g open-frame micro solenoid is designed for short activation periods and precise linear motion over a 4 mm stroke. Its spring return, E-clip and rubber gasket make it suitable for precision mechanisms, automatic latches and DIY projects.
Soldering tools and accessories
Set of 7 soldering tips plus a replacement head for the HT-F01 gas soldering iron.
Arduino components
Blank 5 × 7 cm printed circuit board for custom electronics projects. Ideal for prototyping and building your own circuits.
Raspberry Pi
Official snap-fit case for Raspberry Pi Zero and Zero W with a matte finish. Includes the base, three interchangeable lids, a short Raspberry Pi camera ribbon cable and rubber feet.
Buzzers
Passive piezoelectric buzzer suitable for a wide range of electronics projects.
Analog audio modules
An inexpensive passive buzzer module for generating audible alerts in alarms, timers, toys and other electronics projects.
Optocouplers (SMD)
The PC817 is an optocoupler used for electrically isolated signal transmission in electronic circuits. It combines an input LED and an output phototransistor with an insulating barrier between them.
Digital audio modules
The PCM5102A is a high-quality I2S DAC module that converts digital audio into clean analog stereo output for Hi-Fi projects using ESP32, Raspberry Pi and other devices.
Power supply modules
Universal fast-charging module providing up to 65 W through USB Type-C. Supports PD 2.0, PD 3.1 (PPS), QC 2.0/3.0, Huawei SCP/FCP, Samsung AFC and other protocols. Ideal for custom power supplies, charging stations and DIY projects.
Photoresistors and light sensors
Measure light intensity easily with this inexpensive light-dependent resistor (LDR) sensor. Suitable for automatic lighting, alarms, light-sensitive circuits and other electronics projects.
Battery accessories
Modular plastic spacer for 18650 batteries. Holds cells securely and evenly spaced when assembling battery packs and allows multiple holders to be connected. Hole diameter: 18.3 mm. Dimensions: 22 × 22 mm. Colour: black. Material: PC + PP + GP.
Soldering tools and accessories
This portable 4-in-1 gas soldering tool combines the functions needed for various soldering tasks in a compact design, from delicate electronics work to heavier metal joints.
Battery accessories
Preformed 2P nickel-plated steel strip for spot-welding 18650 cells when building or repairing battery packs. The two-cell layout simplifies creating durable electrical connections.
Switches (DIP)
White 10 × 15 mm switch for low-current electrical circuits, rated for up to 3 A at 250 V. Suitable for applications requiring switching of AC or DC circuits within its specified ratings.
Development boards and accessories
A tiny computer with enormous potential. The Raspberry Pi Zero 2 W delivers up to five times the performance of its predecessor while retaining the iconic pocket-sized form factor. It is suitable for smart-home systems, solar-powered projects and electronic-device controllers.
RF modules
RC522 RFID module for reading 13.56 MHz contactless cards. Compatible with Arduino.
Switching modules
Compact, versatile 5 V single-channel relay module enabling microcontrollers to switch higher voltages and currents. Suitable for motors, lights, solenoids and other electrical loads.
Capacitors (DIP)
An assortment of 500 electrolytic capacitors in 24 values for electronics projects, circuit prototyping and repairs.
Resistors (DIP)
A wide selection of resistors in various values from 1 Ω to 10 MΩ, supplied as an assortment of 2,600 pieces.
Soldering tools and accessories
Professional six-piece set of precision antistatic tweezers made from high-quality stainless steel with an ESD-safe finish. Ideal for fine electronics work, watchmaking, laboratory work and model making.
Capacitors (SMD)
A set of 320 size-1206 SMD capacitors in 16 capacitance values, with 20 pieces of each value. Ideal for electronics projects and repairs.
Resistors (SMD)
An assortment of 2,000 size-1206 SMD resistors in 80 resistance values, suitable for a wide range of electronics projects.
Arduino modules
The SG90 is a small, fast servo suited to robots, animatronics and many other projects. It offers precise positioning, reliable operation and easy integration.
Arduino modules
The Si5351A clock generator module is a powerful and flexible I2C-controlled clock signal generator (CLK).
Touch switches
eWeLink smart touch switch for a modern connected home. With a stated 2,000 W load capacity and Wi-Fi/Bluetooth control, it combines touch operation with remote convenience.
Capacitors (SMD)
A set of 400 SMD electrolytic capacitors in 24 values, suitable for electronics prototyping, projects and repairs.
Solenoids
A 12 V, 80 mA solenoid uses electromagnetism to produce mechanical movement.
Display modules
A sharp, colourful TFT display suitable for smartwatches, electronic devices, medical equipment and other projects. Designed for reliable operation and easy integration.
Switches (DIP)
A two-pin momentary push button. Pressing the button connects its two terminals, completing the circuit and allowing an electrical signal to pass.
Battery management (BMS) modules
The TP4056 USB-C module charges lithium-ion batteries in devices such as portable speakers, flashlights, smartwatches and power banks. The Slovak description also refers to overcharge and overheating protection; actual protection circuitry depends on the board variant.
LED diodes
This versatile four-pin, 5 mm RGB LED lets you create colourful lighting effects for electronics projects, interior lighting, illuminated signs and decorations.
Touch sensors
The TTP223 is a simple, reliable capacitive touch sensor for controlling Arduino projects by touch, including touch switches and control panels.
Arduino modules
Compact four-pin USB Type-C breakout board for connecting electronics projects to USB-C devices. Suitable for power-supply prototypes and other USB-C applications.
Vibration and motion modules
5 V ERM vibration motor module with an integrated onboard MOSFET driver. Only one control pin (IN) is needed to control vibration. Ideal for Arduino, ESP32, STM32 and other microcontrollers.
Insulating and protective tapes
High-temperature polyimide adhesive tape for electrical insulation and protecting PCBs, wires, coils and battery cells. Withstands temperatures up to 200 °C, adheres well and leaves no adhesive residue when removed.
Programmers
Easy-to-switch WCH-LinkE USB debugger/programmer for WCH RISC-V and ARM microcontrollers (SWD, JTAG), with a virtual COM port, mode selector, 3.3 V / 5 V supply support and automatic firmware detection. Ideal for fast programming and debugging.
Display modules
The Wisevision 0.96-inch ST7735 IPS TFT is a compact color display with 80 × 160 pixel resolution. It is suitable for wearables, electronics projects, medical instruments and other devices.
Arduino modules
The WS2812B 8×8 RGB LED matrix contains 64 individually addressable LEDs and is suitable for displays, signs, decorations and interactive electronics projects.
SMD LED diodes
The WS2812B is an individually addressable RGB LED that lets you control the red, green and blue channels independently to create impressive lighting effects in your projects.
Step-down converters
The XL4015 is a high-power DC-DC step-down module for converting a higher input voltage to a regulated lower output voltage.
Step-down ICs
The XL4015E1 is a high-performance step-down regulator with an 8–36 V input range, a 1.25–32 V adjustable output and a maximum output current of 5 A.
Step-up converters
The XL6009 DC-DC boost converter raises a lower input voltage to a higher output voltage, adjustable up to 45 V.
Step-up ICs (SMD)
The XL6009E1 is an integrated DC/DC step-up regulator for efficient voltage boosting, manufactured by XLSEMI.
Step-down converters
The XL6019 is a versatile high-efficiency DC-DC converter module that can step voltage down or up. It can therefore be used to reduce as well as increase the input voltage.
Step-down ICs
Step-up and step-down voltage regulation in one IC package.
Step-down converters
The XL7015 DC-DC step-down module reduces a 5–80 V input to an adjustable 1.25–20 V output, with a maximum output current of 0.8 A (800 mA).
Step-down ICs
High-performance XL7015E1 step-down DC-DC regulator in a TO-263 package for efficient regulation of higher input voltages. Suitable for adapters, battery chargers, LED lighting and other electronic devices.
Soldering tools and accessories
Versatile 800-piece heat-shrink tubing kit in assorted colours and sizes, with a 2:1 shrink ratio for quick, reliable wire insulation.
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