TLP3407S & TLP3409S High-Current Photorelays Toshiba TLP3407S and TLP3409S High-Current Photorelays are housed in an S-VSON4 package with a very small mounting area. The 60V TLP3407S and 100V TLP3409S offer very low on-resistance and on/off switching of high currents, making these Toshiba photorelays suitable for switching applications in high-speed testers.