About Us

We sell under the name ‘Cooltronix’ on eBay since about 2005. We have a small range of products that we sell online. Our core business is circuit assembly (EMS) and printed circuit board (PCB) related materials. With Cooltronix we focus on a rather random selection of products, some are overstock components – when you do large scale circuit assembly for customers it’s unavoidable to have some leftover material when the design changes or the product life ends. It’s all A-grade parts from authorized sources.

Teccor Q2015L5 Thyristor

We do not operate a walk in store, but if you are in Hong Kong and like to pick something up from our office in Kowloon Bay, or want to see something with your own eyes we will be happy to serve you!