5000Vrms isolation in an 8-SMD gull-wing package
The Renesas PS8502L2-AX is a single-channel, transistor-output optocoupler from the NEPOC series, designed for galvanic isolation in industrial, power-supply, and motor-control applications. It provides 5000Vrms of isolation between input and output, with a typical forward voltage of 1.7V and a minimum current transfer ratio of 15% at 16mA forward current. The output transistor can switch up to 35V and 8mA, making it suitable for logic-level interfaces, PLC I/O modules, and isolated feedback loops in switch-mode power supplies.
Turn-on time of 220ns and turn-off time of 350ns (typical) place this optocoupler in the medium-speed class — fast enough for 1–2 MHz digital isolation or PWM feedback at tens of kHz, but not intended for high-speed data links like CAN or Ethernet isolation. The 8mA output current per channel is adequate to drive a standard logic input or a small relay coil through a buffer transistor.
Active lifecycle, ROHS3, and wide temperature range
The 8-SMD gull-wing package suits surface-mount assembly and is compatible with standard reflow profiles.
Sourcing and BOM fit
For buyers evaluating dual-sourcing options, the PS2801C-4-V-A is a four-channel NEPOC optocoupler with the same DC input and transistor output topology, but with 2500Vrms isolation and slower 5µs/7µs switching — a functional alternative only when channel count and speed requirements differ.