About products and suppliers:
Tradechina.com offers 649 bt139 integrated circuit products. About 91% % of these are integrated circuits, 1%% are microcontrollers.
There are 649 bt139 integrated circuit suppliers, mainly located in Asia. The top supplying countries or regions are bt139 integrated circuit, China, and 100%, which supply {3}%, {4}%, and {5}% of {6} respectively.