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470 Ohm 1/10W 1% SMD Resistor
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This surface-mount resistor is a simple, reliable passive component for electronics builds, repairs and prototyping. It provides 470 Ohms resistance with ±1% tolerance in a thick film SMD package.Rated for 0.1W / 1/10W, it is suitable for compact PCB designs where a through-hole resistor is not r...
4.7" E-ink Screen for ESP32
This 4.7" e-ink display board integrates an ESP32-WROVER-E module (ESP32-D0WDQ6 V3) with 16MB Flash and 8MB PSRAM, providing a complete development platform for low-power e-ink projects. The display supports 16 grayscale levels and partial refresh for faster screen updates. The board features 3 ...
47k Ohm 0.5 Watt Metal Film Resistors - Pack of 8
A pack of 8 metal film resistors rated at 47 kΩ and 0.5W (½W). These through-hole axial resistors offer 1% tolerance for accurate circuit design, and are the same physical size as standard ¼W carbon film resistors, making them a drop-in upgrade for higher power handling. Specifications Resista...
4.7k Ohm SMD Resistor - 1/10W, 1%
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This compact SMD resistor is suited to PCB repairs, prototyping and small-batch builds where you need a precise surface-mount passive component.It is a thick-film resistor with ±1% tolerance and a 1/10W power rating, supplied as a single component.A datasheet is available from the manufacturer fo...
47kΩ 1/4W ±5% PTH Resistor
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This is a basic 47 kOhms through-hole resistor for general electronics prototyping and repairs. It is rated for 1/4 Watt with a ±5% tolerance.The PTH leads make it easy to use with breadboards, perf boards and hand-soldered circuits. It is supplied as a single resistor, handy when you only need o...
47pF 50V 5% C0G/NP0 MLCC Capacitor
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This ceramic MLCC capacitor provides 47 pF capacitance with a 50V rating and ±5% tolerance. It uses a C0G/NP0 temperature coefficient, making it suitable where a stable small-value capacitor is required.It is a surface-mount part supplied as a single unit, with a compact 1.60mm x 0.80mm footprint...
4-AAA Battery Holder
This battery holder accommodates 4× AAA batteries in series, providing approximately 6V from alkaline cells or 4.8V from NiMH rechargeables. It features wire leads for connecting to your electronics projects. Key Features 4× AAA Configuration – Series connection for 4.8–6V output Wire Leads –...
4 channel 5V relay module with light coupling 5V
A 4-channel relay module with opto-isolated inputs for safe, reliable switching of high-power loads. Each relay is rated for up to 10A at 250VAC or 30VDC, making it suitable for controlling lights, motors, heaters, and other mains-powered devices from a microcontroller. The opto-isolators protec...
4 Channel Arduino Relay Shield
This 4-channel relay shield from DFRobot plugs directly onto an Arduino Uno or compatible board, providing opto-isolated relay switching for controlling high-power devices such as lamps, water pumps, and motors. Each relay has its own test button and LED status indicator. The shield features a b...
4 Channel Bi-Directional Level Converter
4-Channel Bi-Directional Logic Level Converter Easily connect devices operating at different voltage levels with this 4-Channel Bi-Directional Logic Level Converter. Designed for safe and reliable voltage translation, it allows 3.3V and 5V devices to communicate without risking damage to sensiti...
4 Channel I2C Motor Shield-V1.1
This motor shield uses dual TB6612 MOSFET drivers and a PCA9685PW I2C PWM controller to drive up to 4 DC motors or 2 stepper motors from an Arduino or compatible board. All motor control and speed management is handled via the I2C bus, freeing up digital pins for other uses. The stackable design...
4-Channel Industrial Modbus RTU Relay Module – 30A, RS485, LED Indicators, Rail-Mount
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The Waveshare Modbus RTU 4-Channel Relay Module provides reliable high-current switching for industrial automation over an RS485 bus. Each of the four SPDT relays handles loads up to 30A at 250VAC or 28VDC, making it suitable for controlling motors, lighting, HVAC systems, and other heavy-duty eq...
4-Channel Level Converter (12V to 3.3V)
This DFRobot 4-channel optocoupler-isolated level converter translates 12V signals down to 3.3V, making it easy to interface industrial sensors and PLC outputs with Arduino, Raspberry Pi, and other 3.3V microcontrollers. Each channel features photoelectric isolation for reliable signal separation...
4-Channel Level Converter (12V to 5V)
This DFRobot 4-channel optocoupler-isolated level converter translates 12V signals down to 5V, making it easy to interface industrial sensors and PLC outputs with Arduino and other 5V microcontrollers. Each channel features photoelectric isolation for reliable signal separation between high and l...
4 Channels IR Reflective Sensor
This Elecrow 4-channel IR reflective sensor module combines four infrared emitter/receiver pairs with a mainboard that processes all signals. When an object enters the detection range, the corresponding channel outputs a low (TTL 0) signal and its indicator LED lights up. Each channel has an onbo...
4-Channel Universal Fast Charger with LCD
This 4-channel universal charger handles Ni-MH, Ni-Cd, Li-ion, and LiFePO4 cells simultaneously across four independent slots. Each battery is monitored individually by a microprocessor with precise Pulse Width Modulation (PWM) control, ensuring safe and efficient charging. A single Li-ion or LiF...
4Core 50W Soldering Irons Heating Element Ceramic Heater
A 4-core 50W ceramic heating element designed as a replacement for soldering iron handles on compatible constant-temperature soldering stations. The ceramic construction with four-wire heating provides fast heat-up, low power loss, and anti-static properties for reliable long-term use. Key Featu...
4-digit 8-segment Display Module for Raspberry Pi Pico, SPI-compatible
A compact 4-digit 8-segment red LED display module designed for the Raspberry Pi Pico. It plugs directly onto the Pico via an onboard female pin header and communicates over an SPI-compatible interface driven by an embedded 74HC595 shift register. The module comes with C/C++ and MicroPython demo ...
4-Digit Display
Add a clear numeric readout to your next microcontroller project with this simple 4-digit LED display module. It is suited to showing counters, timers, scores and sensor values without needing lots of I/O pins.The module uses a 2-wire serial interface with CLK and DIO pins, and runs from either 3...
4G GNSS-RTK Positioning Kit (EMEA & Thailand)
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Designed for high-accuracy navigation projects, this kit uses Network RTK to deliver 5 cm + 1 ppm centimetre-level positioning across a typical 15-20km operational range. Its onboard 4G module receives RTCM correction data from a CORS network via the Ntrip protocol, removing the need for a local ...
