Dongguan Longkey Electronic Co., Ltd. was established in the fall of 1985 to specialize in the PTC thermistor and component industry. We currently produce 80 million pieces of PTC thermistors with different specifications for various purposes, and 10 million sets of PTC components annually. Moreover, our PTC components have UL, TUV, and CQC certification.

Our company possesses a rich technical force and material resources, enabling us to provide our clients with high quality products. We cooperate closely with Japanese, American, and domestic PTC experts to stay on top of the latest developments and trends in the PTC industry.

Longkey products have sold well domestically, manwhile having been exported to over 10 countries and regions; including Southeast Asia, Europe, America, and Africa. Following our management principle of "quality first, high reputation", we are continually looking to expand our market presence. If you are interested in any of our products, please contact us with your inquiries.