Triacs carry an important job in the field of electronics; some formally call triacs bidirectional triode thyristors. The bi-directional devices can conduct a current in either direction when on. One commonly finds them in microwave ovens, providing a voltage path and energizing cooking circuits. Triacs of lower power control function in applications such as light dimmers, fan speed controls, and computerized control circuits of small and major household appliances.

With triacs seeing frequent use in so many devices common in homes and businesses, they often are subject to failure. Electricians and repair technicians need to keep replacements on hand. They also need to be experienced in the operation and replacement of triacs. When considering where to buy your triacs for replacement and repair, think about the following:

1. Which types of triac circuits do you repair the most often?

2. What type of support will you need from your triac suppliers?

3. Is it best to place orders for kits from the triac distributor?

Action Steps
The best contacts and resources to help you get it done

Find low-power triacs at wholesale prices

Contractors use low-power triacs in several different operations. Many speed options operate under triac control, such as stand-alone fans and ceiling fans. Triac dimmers are in the lighting of homes, restaurants, hotels, and other commercial facilities. After substantial use, these triacs can wear out.

I recommend: The Show Time Shop offers a triac dimmer used in lighting systems. NTE Electronics sells a variety of triacs including lower power and higher power options. Both stores offer online purchasing and pictures of products along with details.

Order triacs online for specials on shipping

Ordering online allows small business repair shops to search for the best deals on electrical supplies. Many triac suppliers offer special shipping rates which can save money. Owners can save time and money by comparing products in the privacy of their own business.

I recommend: Search for online triac vendors that offer special discounts and deals. Allied Electronics gives customers convenient same-day shipping. American Microsemiconductor ships orders over $100 free of any shipping charges.

Purchase microwave triacs and triac kits

Microwave ovens are a common fixture in home and in break rooms of businesses. Triacs in these microwave ovens are the prime culprit for operation failure. If you do small appliance repair, keep microwave oven triacs on hand. One can buy individual triacs and complete assembly kits.

I recommend: Purchase the entire assembly kit from 4 Appliance Repair Parts. All Appliance Parts offers just the triac. Both vendors offer easy ordering and pictures of their products.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Seek information from triac manufacturers about the type of triac you should purchase. Using a low-power triac in a high power device will not work. Many triac distributors exist that offer different types of triacs. Ensure that you obtain the exact match needed for replacement.