1458 Optocoupler Datasheet ❲Edge Confirmed❳

You can view technical parameters and search for the exact PDF on the ALLDATASHEET HCPL-1458 Search Page 2. Dual Operational Amplifier (MC1458 / LM1458)

The first page tells you the physical format. Look for: 1458 optocoupler datasheet

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When the phototransistor turns off, the inductive coil inside the relay will collapse, producing a high-voltage back-EMF spike. Always place a flyback diode (such as a standard ) in parallel with the relay coil to protect Pin 5 ( VCEOcap V sub cap C cap E cap O end-sub ) from exceeding its 30V limit. When the phototransistor turns off, the inductive coil

The 1458 optocoupler—most commonly encountered as the or as part of the broader 1458 series of optical isolators—is a specialized semiconductor component designed to transfer electrical signals between two isolated circuits using light. By using a light-emitting diode (LED) paired with a photosensitive transistor, this device prevents high voltages on the output side from damaging sensitive components on the input side.