Solid state relays (SSRs) provide silent, bounce-free semiconductor switching for AC and DC loads — replacing electromechanical relays in applications requiring long life, fast switching, and immunity to vibration and arcing, such as industrial heating controls, motor drives, and medical equipment. Our solid-state relay inventory covers zero-cross and random-fire AC SSRs, DC SSRs, and photorelay/MOSFET output types from Omron (G3 series), Crydom, Panasonic (AQV series), Vishay (LH series), and IXYS/CPC — with load voltages from 3V DC to 660V AC, load currents from 0.1A to 100A+, and control voltages from 3V to 32V DC.
High-current AC SSRs (>25A) for industrial heating applications and specific package styles (SIP, DIP) for PCB-mount industrial controls are frequently on allocation or discontinued. Welllinkchips stocks a range of solid-state relay configurations and can source obsolete or hard-to-find SSR types for legacy industrial equipment and medical device repair.
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