A1458 Optocoupler Datasheet [updated] Jun 2026

| Parameter | Symbol | Typical Value | Unit | | :--- | :--- | :--- | :--- | | Rise Time | tr | 4 | µs | | Fall Time | tf | 3 | µs | | Turn-on Time | ton | 5 | µs | | Turn-off Time | toff | 4 | µs |

Common in Switch-Mode Power Supplies (SMPS) to isolate control signals from high-voltage rails. a1458 optocoupler datasheet