A1458 Optocoupler — Datasheet __full__

: Many variants (like the Broadcom version) are hermetically sealed in SOP-8 packages to protect internal components from moisture and environmental contaminants, crucial for military or aerospace use. Low Power Requirement : Designed for low input forward current ( cap I sub cap F )—typically

Look for the CTR degradation over time graph. If the A1458 is older than 10 years, expect 20-30% less efficiency than the datasheet’s typical value. a1458 optocoupler datasheet

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. : Many variants (like the Broadcom version) are