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Engineering tools and sourcing support for test instruments, RF tools, development boards, power supplies, repair supplies, and project parts. Shop standard items online, or request help for quantities, substitutions, and hard-to-match components.

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DC7-200V Digital Power Energy Voltmeter Ammeter Bi-Directional Metering Coulometer Battery Tester 9 in 1 Multi-Function Tester

DC7-200V Digital Power Energy Voltmeter Ammeter Bi-Direction

DC 5-30V to 1.25-30V 8A Automatic Step UP/Down Converter Boost/Buck Voltage Regulator Module Charger Power Converter DIY KIT

DC 5-30V to 1.25-30V 8A Automatic Step UP/Down Converter Boo

FNIRSI Automatic 30V DC-DC Converter Module for Electronics Prototyping

FNIRSI Automatic 30V DC-DC Converter Module for Electronics

Precision 5V 700MA(3.5W)/12V2A Isolated Switching Power Supply/ACDC Step-down Module 220 To 5V

Precision 5V 700MA(3.5W)/12V2A Isolated Switching Power Supp

XY7025 70V DC-DC Converter Module for Electronics Prototyping

XY7025 70V DC-DC Converter Module for Electronics Prototypin

1-20pcs PD Fast Charging Test Board 5-20V Adjustable PD Trigger Module USB Type-C 100W Power Supply Tester

1-20pcs PD Fast Charging Test Board 5-20V Adjustable PD Trig

4-Band FM MW SW Radio Receiver Module with Adjustable Antenna and Volume

4-Band FM MW SW Radio Receiver Module with Adjustable Antenn

DC12-80V 600W DC-DC Converter Module for Electronics Prototyping

DC12-80V 600W DC-DC Converter Module for Electronics Prototy

800W 25A MPPT Solar Charger Power Supply Module 18V-90V to 2-60V DC-DC Step Down Buck Converter Auto Charging Board Ideal Diode

800W 25A MPPT Solar Charger Power Supply Module 18V-90V to 2

DC 3V-6V bis 400kV 400000V Boost Step up Power Module High Voltage Generator transformer

DC 3V-6V bis 400kV 400000V Boost Step up Power Module High V

TG137 LM2596 Adjustable DC-DC Buck Converter Module with LED Voltmeter

TG137 LM2596 Adjustable DC-DC Buck Converter Module with LED

XY6509X 0-65V 9A 585W Programmable DC Buck Converter with Modbus and MPPT

XY6509X 0-65V 9A 585W Programmable DC Buck Converter with Mo

LM2596 Adjustable 3A DC-DC Buck Converter Module in 1/5/10-Piece Packs

LM2596 Adjustable 3A DC-DC Buck Converter Module in 1/5/10-P

Wuzhi Audio ZK-MT21 2.1-Channel Bluetooth 5.0 Amplifier Board 50W+50W+100W

Wuzhi Audio ZK-MT21 2.1-Channel Bluetooth 5.0 Amplifier Boar

INA228 I2C 85V 20-bit High/Low-Side Power Monitor Module with STEMMA QT / Qwiic-Compatible Connectors

INA228 I2C 85V 20-bit High/Low-Side Power Monitor Module wit

Trigger Board Module PD/QC Decoy Board Fast Charging Test Board USB Type-c High Speed Charger Power Delivery Boost Module

Trigger Board Module PD/QC Decoy Board Fast Charging Test B

High Quality DC 100V 10A Voltmeter Ammeter Blue + Red LED Amp Dual Digital Volt Meter Gauge

High Quality DC 100V 10A Voltmeter Ammeter Blue + Red LED Am

SK150C 150W DC-DC Adjustable Power Supply Module 7-36V 8A with Color Display

SK150C 150W DC-DC Adjustable Power Supply Module 7-36V 8A wi

4S 20V 5A Bidirectional Buck-Boost Charge Discharge Power Module

4S 20V 5A Bidirectional Buck-Boost Charge Discharge Power Mo

XY6550S 3250W DC-DC Converter Module for Electronics Prototyping

XY6550S 3250W DC-DC Converter Module for Electronics Prototy

4 Wire Fan PWM Speed Controller PD QC Fast Charging Type C DC 24V 12V 5V Cooling Fan Speed Regulator

4 Wire Fan PWM Speed Controller PD QC Fast Charging Type C D

ZK-SJ30 700W 30A Solar MPPT Boost Power Module for Battery Charging

ZK-SJ30 700W 30A Solar MPPT Boost Power Module for Battery C

DC 10-55V 12V 24V 36V 48V 55V 100A Motor Speed Controller PWM HHO RC Reverse Control Switch with LED Display

DC 10-55V 12V 24V 36V 48V 55V 100A Motor Speed Controller PW

XY8030S 2400W DC-DC Converter Module for Electronics Prototyping

XY8030S 2400W DC-DC Converter Module for Electronics Prototy