MALVERN, Pa. — May 20, 2026 — Vishay Intertechnology, Inc. (NYSE: VSH) today introduced two new Automotive Grade optocouplers with phototransistor output in a widebody package featuring a comparative tracking index (CTI) of 600. Designed to deliver signal transmission with high galvanic isolation for electric vehicles (EV) and solar inverters, the Vishay Semiconductors VOWA617A and VOWA618A provide V_IORM of 1500 V_peak, V_IOWM of 1060 V_RMS, and external creepage and clearance distances of ≥ 11 mm.

Offering the highest creepage distance in their class, the AEC-Q102 qualified devices released today provide a ≥ 38 % higher safety margin than typical 8 mm solutions, making them ideal for grid-connected on-board chargers (OBC), DC/DC converters, and battery management system (BMS) isolation stages. Exceeding the requirements for reinforced insulation in these high voltage applications, they combine their high V_IORM and V_IOWM - which represent increases of 6 % and 19 %, respectively, over competing devices - with an isolation voltage of 5300 V_RMS and V_IOTM of 8000 V_peak.

The optocouplers each consist of an infrared emitting diode, which is optically coupled to a silicon planar phototransistor detector in a widebody SMD-8 package. While standard solutions typically offer a CTI of 175, the 600 CTI of the VOWA617A and VOWA618A gives them a Material Group 1 rating, the highest insulation group. In addition, their 80 V collector-emitter voltage rating allows more design flexibility.

Compared to consumer-grade solutions that typically feature operating temperatures to +85 °C, the optocouplers operate over a wider -40 °C to +125 °C temperature range, with a junction temperature capability up to +145 °C. RoHS-compliant, halogen-free, and Vishay Green, the devices feature a wide current transfer ratio (CTR) range from 50 % to 600 % at low input currents of 5 mA for the VOWA617A and 1 mA for the VOWA618A.

Samples and production quantities of the new widebody optocouplers are available now, with lead times of eight weeks.

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