1458 Optocoupler Datasheet [new] Jun 2026

A datasheet will show CTR graphs. For a generic optocoupler, CTR decreases as temperature rises and as the optocoupler ages (over years). For reliable digital communication, ensure your IC is at least 2x the required input current of your receiving chip.

Exceeding I_F = 60mA degrades the LED. The isolation voltage (5 kV_RMS) is the primary advantage over non-isolated solutions. 1458 optocoupler datasheet

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 A datasheet will show CTR graphs

| Part Number | Package | Qty per Reel | Lead‑Free (Y/N) | |-------------|---------|--------------|-----------------| | 1458‑A | DIP‑4 | 500 | Y | | 1458‑B | DIP‑4 | 1000 | Y | Exceeding I_F = 60mA degrades the LED

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