These new photorelays are rated to operate at temperatures up to 135°C and are housed in an ultra-compact S-VSON4T package, measuring just 1.45 × 2.0 mm (typ.).

As the automotive industry moves toward electrification and autonomous driving, engineers are increasingly challenged to design circuits that can withstand high temperatures and integrate more functionality into ever-shrinking spaces. Toshiba's new photorelays directly address these demands by offering a higher maximum operating temperature than existing products, rated at 125°C, ensuring reliable performance even in the most thermally demanding environments, such as automotive semiconductor testers, burn-in systems, and probe boards.

For design engineers, the integration of built-in input resistors means these photorelays can be directly voltage-driven, eliminating the need for external resistors and simplifying circuit design. This not only reduces the number of components but also frees up valuable board space, enabling more compact and efficient designs. The S-VSON4T package also allows for high-density mounting, enabling engineers to integrate multiple relays into a limited board space without compromising performance or reliability.

The TLP3407SRB, in particular, offers an on-state current rating of up to 1 A, while the TLP3412SRB, TLP3412SRHB , and TLP3412SRLB provide robust switching capabilities with low on-state resistance and fast response times. These features make the new series especially well-suited for applications where high-speed, high-reliability switching is critical.