5000Vrms isolation in a 4-pin 6-SOIC
The TLP385(BLL,E is a single-channel transistor-output optocoupler from Toshiba, delivering 5000Vrms isolation in a 6-SOIC package with 4 leads. That isolation rating covers reinforced insulation requirements for industrial power supplies, motor drives, and PLC I/O modules where the primary and secondary sides need a solid safety barrier.
CTR range and switching speed
The current transfer ratio spans 200% to 400% at a 5 mA forward current. Typical rise and fall times are 2 µs and 3 µs, with turn-on and turn-off both at 3 µs.
Package and mounting
Supplied in a tube, the part is a surface-mount 6-SOIC with a 0.173-inch body width and 4.40 mm height — the 4-lead variant leaves two pins unpopulated. The 80 V output rating and 50 mA continuous output current cover most signal-level isolation needs.