Single-channel optocoupler with 5 kV isolation
The Vishay VO615A-1X009T is a single-channel optocoupler with a DC-input phototransistor output, providing 5000Vrms galvanic isolation between input and output circuits. Key parametric specs include a current transfer ratio (CTR) range of 40% to 80% at a forward current of 10 mA, a typical forward voltage of 1.43 V, and a maximum Vce saturation of 300 mV. The device is ROHS3 compliant and carries an active lifecycle status, indicating ongoing production support.
Isolation and switching performance
The 5000Vrms isolation rating is the primary spec for safety isolation in power supplies, motor drives, and PLC I/O modules. The typical turn-on and turn-off times of 6 µs and 5 µs, respectively, are adequate for low-frequency signal and status feedback applications, but not for high-speed data links. The 40% to 80% CTR range at 10 mA forward current ensures reliable logic-level translation across the isolation barrier. Designers should note that CTR degrades with temperature and over time; the minimum 40% at 10 mA provides a comfortable margin for most digital inputs.
Package and assembly considerations
The 4-SMD gull-wing package is designed for reflow soldering and is compatible with standard pick-and-place equipment. The Tape & Reel variant (X009T suffix) is the volume-production format; the Cut Tape option suits prototype or low-volume builds. The supplier device package is 4-SMD, with no exposed pad — standard SMD footprint applies.