A1458 Optocoupler Datasheet [cracked] Jun 2026

This optocoupler is frequently used to bridge sections of a system that operate at different voltage levels or to protect sensitive components from noise. Gate Drivers: Often used to drive power transistors like IGBTs and Power MOSFETs Microcontroller Interfacing:

| Model | CTR Range | Isolation | Speed (tr/tf) | Price (Relative) | | :--- | :--- | :--- | :--- | :--- | | | 50% - 600% | 5000Vrms | 4 µs | $$ | | PC817 | 50% - 600% | 5000Vrms | 4 µs | $ (Very common) | | 4N35 | 100% - 500% | 3550Vrms | 5 µs | $ | | TLP521 | 50% - 600% | 2500Vrms | 4 µs | $$ | | H11L1 | Logic output | 2500Vrms | 0.3 µs | $$$ | a1458 optocoupler datasheet

| 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 | This optocoupler is frequently used to bridge sections

This is the ratio of output current to input current. For the A1458, this is generally between 50% and 600%, categorized into different "ranks" (e.g., Rank L, Rank A). Pinout Configuration Pinout Configuration (Note: Always verify the pinout against

(Note: Always verify the pinout against the specific manufacturer's logo on the chip, as internal configurations can vary between 4-pin and 8-pin versions.) Practical Applications

, which provides flexibility for level-shifting applications by using an external pull-up resistor. 2. Pinout and Connection Diagram The A1458 typically comes in an 8-pin SOP or DIP