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Walfront


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GM328A Transistor Tester Frequency PWM Square Wave Generator LCR Voltage Frequency Meter
GM328A Transistor Tester Frequency PWM Square Wave Generator LCR Voltage Frequency Meter
In Stock
$30.99

mpn: Walfrontpgwa4k0x6f, ean: 0798382738726,

Description: The display unit uses a 160x128 pixel color display, full-screen characters 8x20, 16-bit color depth, graphic display element symbols. Reverse breakdown voltage is lower than 4.5V diode can detect it, appears as double diode symbol. It...


35M-4.4GHz RF Signal Source PLL Phase Locked Loop Frequency Synthesizer ADF4351 Development Board, Signal Generator Module
35M-4.4GHz RF Signal Source PLL Phase Locked Loop Frequency Synthesizer ADF4351 Development Board, Signal Generator Module
In Stock
$37.99

mpn: Walfront3fh67zkb8a, ean: 0663862606300,

Features: This ADF4351 signal source development board has well designed circuit board layout. It can be controlled by the upper computer official software. All control pins are leaded out for convenient operation. Default + -50ppm 25M active cr...


FC-6S Fiber Cleaver FTTH Assembly Optical Fiber Termination Tool Kit
FC-6S Fiber Cleaver FTTH Assembly Optical Fiber Termination Tool Kit
In Stock
$50.99

mpn: Walfrontyhs6mp4u5z, ean: 0798382028124,

Specifications: Fiber Cleaver: FC-6S Fiber Optic Stripper: CFS-3 Weight: 668g Package included: 1 x Fiber Cleaver FC-6S 1 x Fiber Optic Stripper CFS-3 1 x Fiber Optic Stripping Tool Plier 1 x Fiber Coating Stripper Cutting Guider 1 x Lar...


1pc Singe Phase Rectifier module rectifier diode bridge 4 Terminals MDQ 400A/1600V
1pc Singe Phase Rectifier module rectifier diode bridge 4 Terminals MDQ 400A/1600V
In Stock
$39.49

mpn: Walfront2x1tysneb7, ean: 0736691565855,

Specifications: Output Current: 400A Single Phase Input Positive Average Current: 135A Repetitive Peak Reverse Voltage(VRRM): 1600V Repetitive Peak Inverse Current(IRRM): 10mA Isolation Voltage(Viso): 2500VAC VTM: 1.5V ITM: 400A Phas...


Aluminum Heat Sink Heatsink Module Cooler Fin for High Power Amplifier Transistor Semiconductor Devices with Dense 19 pcs Fins 11.8''(L) x 5.51''(W) x 0.79''(H) / 300 mm (L) x 140 mm (W) x 20 mm (H)
Aluminum Heat Sink Heatsink Module Cooler Fin for High Power Amplifier Transistor Semiconductor Devices with Dense 19 pcs Fins 11.8"(L) x 5.51"(W) x 0.79"(H) / 300 mm (L) x 140 mm (W) x 20 mm (H)
In Stock
$22.99

mpn: 43272-950, ean: 0736691271961,

A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device, thereby allowing regulation of the device's temperature at optimal levels. In computers, heat sinks are used to cool central processing...


Multi-functional LCD MG328 Transistor Tester ESR Meter NPN PNP Diode Triode Capacitor MOSFET Resistor Tester DIY Kit
Multi-functional LCD MG328 Transistor Tester ESR Meter NPN PNP Diode Triode Capacitor MOSFET Resistor Tester DIY Kit
In Stock
$23.89

mpn: Walfrontytk34uqxvg, ean: 0663862244519,

Graphic multi-functional tester: resistor + capacitor + diode + ESR + inductance + Transistor + mos tube; Automatic detect NPN and PNP transistors, N-channel and P-channel MOSFET, diode (including dual diodes), transistors, resistors, capacitors, thy...


433MHz RF Broadband Amplifier Ham Radio Module 22dB High Gain Low Noise LNA Amplifier Module Board
433MHz RF Broadband Amplifier Ham Radio Module 22dB High Gain Low Noise LNA Amplifier Module Board
In Stock
$20.99

mpn: Walfrontwfgix95myu, ean: 0663862601084,

Description: Commonly used in broadband systems, small signal amplification, RF front-end signal enhancement, HF shortwave, FM, VHF / UHF UHF high frequency amplification and other occasions. Specifications: Working Voltage: 3---5V Working Current: ...


DPA51CM44 3-Phase Monitoring Relay, Current/ Voltage Monitoring Relay Phase Sequence Protector for three-phase System, Without Neutral, phase Loss and Incorrect phase Sequence, 208-480VAC
DPA51CM44 3-Phase Monitoring Relay, Current/ Voltage Monitoring Relay Phase Sequence Protector for three-phase System, Without Neutral, phase Loss and Incorrect phase Sequence, 208-480VAC
In Stock
$30.69

mpn: Walfrontnwk1eiyx4f, ean: 0663862563719,

Features: DPA51CM44 3-Phase monitoring relay features strong anti-interference performance. Compact size and convenient for installation. Maintain constant and efficient work of the motor. Widely used in motor protection, elevator, air conditioning ...


RTU & AT Command 2 CH RS485 Relay PLC Controller UART Serial Port Switch
RTU & AT Command 2 CH RS485 Relay PLC Controller UART Serial Port Switch
In Stock
$16.49

mpn: Walfrontepvrd0gbam, ean: 0663862852301,

Specifications: Working voltage: DC 12V Standby current: 7-8MA Size:  as the picture  Weight: 40g  Max load:10A/250VAC ,10A/125VAC,10A /30VDC, 10A /28VDC ,10A /12VDC Package Included: 1 x 2 CH RS485 Relay Function description: ...


4 Channel Bluetooth Relay Module Phone Wireless Remote Control Switch
4 Channel Bluetooth Relay Module Phone Wireless Remote Control Switch
In Stock
$26.79

mpn: Walfrontpdcn20k9hq, ean: 0663862852196,

Specifications: Size: as the picture Weight: 77g Communication mode: 2.1 Bluetooth Communication distance: 6-10 m Control mode: Bluetooth wireless remote control relay switch Control port: 4 switches with regular open and close functions ...


10Pcs Audio Transformers 600:600 Ohm 1:1 EI14 Isolation Transformer
10Pcs Audio Transformers 600:600 Ohm 1:1 EI14 Isolation Transformer
In Stock
$10.19

mpn: Walfrontvoqgntyag2, ean: 0663862204438,

Specifications: Voltage ratio: 1:1 AC impedance : EI14 600 : 600 Ohm Power supply phase: single phase Moisture-proof mode: open Cooling mode: oil immersed air cooled Frequency characteristics: intermediate frequency Windability : Double-wire winding ...


6G Digital Pogrammable Attenuator 30DB Step 0.25DB RF Module OLED Display
6G Digital Pogrammable Attenuator 30DB Step 0.25DB RF Module OLED Display
In Stock
$48.49

mpn: Walfrontvtgzasykf5, ean: 0663862202502,

Specifications: Operating frequency: LF-6GHz Attenuation adjustment range: 0-31.75dB Attenuation step: 0.25 (dB) Insertion loss: ≤ 1.5dB (high-frequency side of the insertion will be larger) Standing wave ratio: ≤ 1.4 Attenuation accuracy: ± 0...


1pc 4 Channel Relay Module Board STM8S103F3 Microcontroller RS485 Communication
1pc 4 Channel Relay Module Board STM8S103F3 Microcontroller RS485 Communication
In Stock
$16.39

mpn: Walfrontu83cgptwq7, ean: 0663862843255,

Features: 4 channel relay output (a normally open, normally closed). 4 channel optical coupling isolation. 4 relay closed the LED light. Circular DC interface, and DC terminal interface. Convenient power connection (12 v power supply voltage). 4 chan...


5V-24V 1 Channel Bluetooth Relay Mobile Remote Control Switch for Android Phone
5V-24V 1 Channel Bluetooth Relay Mobile Remote Control Switch for Android Phone
In Stock
$24.99

mpn: Walfrontwf4phzrmgq, ean: 0663862842142,

Specifications: Operating voltage: DC 5-24V(power supply 1), DC 5V(power supply 2) Standby Operating Current: 11MA Relay Open Operating Current: 45MA (voltage DC 12V) Bluetooth Version: Bluetooth V2.1 + EDR, Class 2 Relay Maximum load:10A/250VAC, 10A...


DC 4-Channel Multifunction Delay Time Timer Relay Switch Module
DC 4-Channel Multifunction Delay Time Timer Relay Switch Module
In Stock
$26.79

mpn: Walfronteg3fmuhdnx, ean: 0663862844047,

Specifications: Operating voltage: power supply 1,DC 6.5-25V; power supply 2,DC 5V Operating Current(DC 12V): Standby current (all relays closed) 16MA, 1 relay open 50MA, 2 relays open 82MA, 3 relays open 115MA, 4 relays open 150MA Functional m...


DC 12V 8 Channel RS485 Relay Command Programmable Control Module Board
DC 12V 8 Channel RS485 Relay Command Programmable Control Module Board
In Stock
$23.89

mpn: Walfrontgqh5zy3dvc, ean: 0663862843330,

Specifications: Power supply: DC 12V   Voltage range: 9-13V Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC Quantity: 1pc Size: Approx. 90 x 63 x 18mm / 3.54 x 2.48 x 0.7inch Weight: 115g Note: Please contact us for i...


12V 8-Channel DB9 RS 232 Relay Module Remote Control Switch Smart Home
12V 8-Channel DB9 RS 232 Relay Module Remote Control Switch Smart Home
In Stock
$24.09

mpn: Walfrontofd9r8ym5x, ean: 0663862851458,

Features: DC 12V power supply (voltage range 9-13V). Standby current is 16MA. RS232 DB9 female interface. "Read", "open", "close", "self-lock", "click"," interlock" 6 commands, which can satisfy most of the industrial control situations. Relay load ...


DC 12V 16 Channel Bluetooth Relay Board Wireless Remote Control Switch for Android Phone
DC 12V 16 Channel Bluetooth Relay Board Wireless Remote Control Switch for Android Phone
In Stock
$51.29

mpn: Walfrontiqpc86k4by, ean: 0663862843910,

Features: Operating Current: Standby current (all relays closed) 14MA, 1 relay open 41MA, 2 relays open 69MA, 3 relays open 96MA, 4 relays open 123MA, 5 relays open 150MA, 6 relays open 177MA, 7 relays open 203MA, 8 relays open 229MA, 16 relays open ...


LCD Display Module,2.8'' 240x320 SPI TFT LCD Serial Port Module with PCB ILI9341 5V/3.3V
LCD Display Module,2.8" 240x320 SPI TFT LCD Serial Port Module with PCB ILI9341 5V/3.3V
In Stock
$11.99

mpn: Walfrontigov9u7kec, ean: 0654936172227,

Specifications: Resolution: 240x320 Driver IC: ILI9341 Input Voltage: 5V/3.3V Color: 64k Quantity: 1 Document Download: http://tftdata.tjc1688.com/2.8_spi/2.8-spi-9341.rar Package Includes: 1 x Display Module Note: This kit re...


AD8318 RF Logarithmic Detector RSSI Measurement Power Meter 1-8000MHz 70dB
AD8318 RF Logarithmic Detector RSSI Measurement Power Meter 1-8000MHz 70dB
In Stock
$23.89

mpn: Walfrontxgoahp5479, ean: 0736691239619,

This is an AD8318 RF Logarithmic Detector with 1-8000MHz operating frequency. Its dynamic range is from -65dBm to +5dBm. The detector adopts AD8318 chip, so it has good sensitivity and high accuracy. Besides, it is equipped with power supply voltage ...



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