1458 Optocoupler Datasheet Today

If you have a component mislabeled as a "1458 optocoupler" in your BOM, here is what it is actually used for:

: Used in feedback loops to safely transmit regulation signals across isolation barriers.

| Part Number | Package | Qty per Reel | Lead‑Free (Y/N) | |-------------|---------|--------------|-----------------| | 1458‑A | DIP‑4 | 500 | Y | | 1458‑B | DIP‑4 | 1000 | Y | 1458 optocoupler datasheet

If your "1458 optocoupler" has a VCEO lower than 30V, it is not suitable for motor drives. If it is higher (e.g., 70V), it is likely a high-voltage variant like the 4N36.

Delivers exact isolated control signal paths to manage speed and torque loops in high-power AC and DC motor control architectures. If you have a component mislabeled as a

Be careful not to confuse the with the LM1458 or MC1458 . While they share the "1458" number, the LM1458 is a Dual Operational Amplifier and does not provide optical isolation.

This light-based transmission path ensures that there is no direct electrical connection between the input and output, protecting the control circuitry from electromagnetic interference (EMI) and power surges. LTC1458/LTC1458L - Analog Devices Delivers exact isolated control signal paths to manage

The HCPL-1458 integrates a high-efficiency Gallium Arsenide Phosphide (GaAsP) Light Emitting Diode (LED) on the input side. This LED is optically coupled to an integrated, high-gain, high-speed photodetector chip on the output side.