JOYIN have been developing and manufacturing highly reliable Varistors and NTCs since 1984. Through innovative design and manufacturing techniques combined with highly integrated and automated processes,  JOYIN strengthened its position as a global manufacturer of quality passive electronic components.
JOYIN system and products quality is confirmed also by the recognized certification from several international bodies (UL, CSA, TUV, VDE, ...) of compliance with the main safety and quality standards (AEC-Q200, ISO9001,  IATF16949, ...)

JOYIN components are designed and tested to work in a wide range of applications and where an effective and reliable protection from overvoltage transients is needed such as: Automotive, Telecom, PC, Home Appliances, Industrial Panels, Portable Electronics, Medical and Power. In addition, NTC sensor solutions allow to detect temperatures in various applications such as Power Supply, Automotive, UPS, Industrial Machines, EV charging, Medical, Portable devices and many others.

STARDAY is official distributor