1458 Optocoupler Datasheet

If this works, your "1458 optocoupler" behaves exactly like a 4N35.

, are designed with clock inputs that allow for a for better isolation. 1458 optocoupler datasheet

For the 4N35 at I_F = 10mA, V_CE = 10V:

| Pin | Function | Description | |-----|----------|-------------| | 1 | Anode | LED anode; forward‑biased when input signal is present | | 2 | Cathode | LED cathode; completes input circuit | | 3 | Collector| Phototransistor collector; output pulled up to VCC | | 4 | Emitter | Phototransistor emitter; grounded or tied to a reference | If this works, your "1458 optocoupler" behaves exactly

Just remember to double-check that you haven't accidentally picked up a 1458 Op-Amp! If this works

The first page tells you the physical format. Look for:

If this works, your "1458 optocoupler" behaves exactly like a 4N35.

, are designed with clock inputs that allow for a for better isolation.

For the 4N35 at I_F = 10mA, V_CE = 10V:

| Pin | Function | Description | |-----|----------|-------------| | 1 | Anode | LED anode; forward‑biased when input signal is present | | 2 | Cathode | LED cathode; completes input circuit | | 3 | Collector| Phototransistor collector; output pulled up to VCC | | 4 | Emitter | Phototransistor emitter; grounded or tied to a reference |

Just remember to double-check that you haven't accidentally picked up a 1458 Op-Amp!

The first page tells you the physical format. Look for: