Optocoupler series expanded with opto-TRIACs

Würth Elektronik now provides a solution for phase control of AC loads, the new WL-OCTR optocouplers, a safe alternative to mechanical relays. The TRIAC optocouplers are particularly suited for use in lamp dimming functions and AC motor drivers in household appliances. They can also be used as drivers for high-current TRIACs.

The TRIAC optocouplers are offered with and without a zero-cross function to shift the TRIAC switch-on point. The portfolio includes THT and SMT designs in DIP4, DIP6, and SOP4 packages, as well as supplies trigger currents of 5, 10, or 15mA. A CTI value (describing leakage current stability) of over 500 and insulation voltages of 3750V or 5000V for the THT and SMT designs makes the optocouplers ideal for circuit protection. Like all optocouplers from the company, the newest addition to the optocoupler portfolio is certified to all necessary standards: UL1577, EN IEC 60747-5-5 VDE 0884-5, CQC GB 4941.1-2022.