A1458 Optocoupler Datasheet Jun 2026

To use any component effectively, you must understand its absolute maximum ratings and electrical characteristics. Below is a distilation of the official .

The A1458 optocoupler is an indispensable asset for any electronics engineer dealing with high-voltage interfacing or noise-sensitive environments. Its robust isolation rating, predictable CTR, and standard packaging make it easy to integrate into both hobbyist projects and industrial-grade hardware. a1458 optocoupler datasheet

: The primary purpose of the A1458 is to provide a barrier between two circuits. On your PCB, ensure there is a clear physical gap (a slot or a "no-copper" area) under the optocoupler to maintain the high isolation voltage rating. This is often called a "moat." To use any component effectively, you must understand

If the "A" was a prefix indicating a manufacturer (like Avago) or a grade, the base number "1458" does not align with standard series. However, users often confuse part numbers with the series (like 4N25, 4N35) or the H11 series, which are standard 6-pin optocouplers. Its robust isolation rating, predictable CTR, and standard

The A1458 is not an ultra-high-speed device (like a logic gate optocoupler, e.g., 6N137), but it is adequate for most power supply feedback and low-speed data isolation (< 50 kHz).

The HCPL-A1458 (SOP-8 package) typically follows this pin configuration: (No Connect) Anode (Input LED) Cathode (Input LED) NC (No Connect) GND (Output Ground) VOcap V sub cap O (Output Voltage) VCcap V sub cap C (Output Supply Voltage) VDDcap V sub cap D cap D end-sub (Output Supply Voltage) 3. Key Applications