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About product and suppliers:
        Alibaba.com offers 78,204 npn transistor products. About 5% of these are integrated circuits, 5% are transistors, and 1% are diodes. 

A wide variety of npn transistor options are available to you, such as bipolar junction transistor, field-effect transistor, and triode transistor. You can also choose from throught hole, surface mount. As well as from free samples, paid samples. 

There are 78,315 npn transistor suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Turkey, which supply 99%, 1%, and 1% of npn transistor respectively. 

Npn transistor products are most popular in Eastern Europe, Southeast Asia, and South America. 

You can ensure product safety by selecting from certified suppliers, including 778 with Other, 598 with ISO9001, and 327 with ISO14001 certification.