1458 Optocoupler Datasheet Access

Because "1458" is not a standard JEDEC part number for an optocoupler, finding the exact PDF can be difficult. It may be a house-branded part (generic) or a misread laser marking.

Steps to find your datasheet:

If the user needs an optocoupler and mistakenly searched for "1458," here are correct alternatives: 1458 optocoupler datasheet

| Application | Recommended Part | Key Feature | |-------------|------------------|--------------| | General purpose, low speed | 4N35, PC817 | Cheap, CTR ≥ 100% | | High CTR (> 500%) | CNY17-4 | Can be driven from µA currents | | High speed (1 Mbit/s) | 6N137 | Logic output, t_pd < 100 ns | | Dual channel, high voltage | HCPL-2531 | Two independent optocouplers | | Zero-crossing SSR trigger | MOC3063 | Triac driver output |

Imagine you found a scrap optocoupler labeled "1458" (maybe a counterfeit or house number). How do you test it? Because "1458" is not a standard JEDEC part

You need: A multimeter, a 5V power supply, a 330-ohm resistor, a 10k resistor, and an LED.

Procedure:

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

The input side of an optocoupler is essentially an Infrared (IR) LED. If this works, your "1458 optocoupler" behaves exactly