A1458 Optocoupler Datasheet Better Now

With a minimum common-mode transient immunity of 15 kV/µs, it is highly resistant to electrical noise and voltage spikes.

On each half-cycle, LED illuminates, output toggles. A capacitor at the output (e.g., 10 μF) with a pull-up resistor creates a logic low when AC is present. a1458 optocoupler datasheet

If the output only drops to 1.5V, the A1458 has a damaged phototransistor or a false datasheet. With a minimum common-mode transient immunity of 15

Need help comparing the A1458 to a modern drop-in replacement? Let me know your specific use case (e.g., motor drive, SMPS feedback, or Arduino isolation). If the output only drops to 1

Because of its high speed and isolation rating, the A1458 is commonly found in:

The primary objective of implementing this component is safety and clean signal communication in high-noise, high-energy operations. It is widely applied in: Help me understanding how optocoupler works - #21 by westfw