1458 Optocoupler Datasheet Updated Jun 2026

The 1458 is a dual-channel or specialized high-density optocoupler (also known as an optoisolator). It integrates light-emitting diodes (LEDs) optically coupled to photodetectors within a single package.

Optocouplers are the watchdogs of mixed-voltage electronics. Treat them with respect, read their datasheets religiously, and your circuits will remain safe, stable, and silent. Happy isolating.

Delivers clean, squared-off digital signals directly, requiring fewer external components. 1458 optocoupler datasheet

Traditional general-purpose optocouplers encounter a bottleneck: the large base-collector capacitance of standard phototransistors slows down signal transitions, resulting in prolonged propagation delays.

Ground isolation in telecommunications and automotive systems. Power Supplies: Switching power supply feedback loops. Potentially Related Components The 1458 is a dual-channel or specialized high-density

Top View (Notch facing left or up) ---- Notch ---- | 1 o o 6 | | 2 o o 5 | | 3 o o 4 | ------------

Optocouplers are slow compared to logic gates. Treat them with respect, read their datasheets religiously,

Ensure sufficient physical distance on your PCB between the input and output traces. This preserves the high-voltage isolation rating of the component.

Circuit 1: Microcontroller interfacing with a 24V Industrial Load

Design Note: To ensure stable, high-speed switching and noise suppression, datasheet applications strictly advise placing a as close as possible between the VCCcap V sub cap C cap C end-sub (Pin 8) and GND (Pin 5) terminals. Technical Breakdown: How It Works