TOSHIBA Photocoupler IRED & Photo-Triac TLP668JF(S) Office Machine Household Use Equipment Triac DriverSolid State Relay The TOSHIBA TLP668JF(S) consists of a zero voltage crossing turn-on photo-triac optically coupled to an infrared emitting diode in a six lead plastic DIP package. TLP668JF(S) Unit: mm Peak off-state voltage: 600 V (min) Trigger LED current: 3 mA (max) On-state current: 100mA (max) Isolation voltage: 5000Vrms (min) UL-recogniz.