Diode and LED FAQS

Frequently Asked Questions about Diodes and LEDs is another in a series of FAQS about electricity and electronics that are oriented toward Appliance Technicians and HVAC Technicians. Frequently Asked Questions about Diodes and LEDs Q. What is a Diode?A. An electronic component that passes current in only one direction. Q. What are the two electrical […]

Semiconductor Testing Cheat Sheet™

How to Test Diodes, Transistors, Triacs, MOSFETs and IGBTs with a Multimeter This page shows how to use a multimeter to test the most common semiconductors (diodes, transistors, etc), along with their associated readings and values. Readings outside of these ranges indicate likely failed components. Diodes, transistors, and other types of semiconductors are based on […]