A1458 Optocoupler Datasheet Repack Jun 2026

These performance specifications define how the A1458 behaves under normal working conditions. Input Diode Specifications Typical 1.5V (at Reverse Leakage Current ( IRcap I sub cap R ): Maximum Input Capacitance ( CINcap C sub cap I cap N end-sub ): 60 pF (at Output Detector Specifications Logic High Output Current ( IOHcap I sub cap O cap H end-sub ): Maximum when the input LED is off. Logic Low Output Voltage ( VOLcap V sub cap O cap L end-sub ): Maximum 0.6V when the input LED is active ( Supply Current ( ICCHcap I sub cap C cap C cap H end-sub ICCLcap I sub cap C cap C cap L end-sub

Optocouplers have a "Rise Time" and "Fall Time." If you are sending high-speed PWM signals (above 10kHz), check the datasheet for the switching speed to ensure the signal doesn't become distorted.

: Isolated line receivers and high-speed logic ground isolation. Equivalent & Substitute Parts If the A1458 is unavailable, a1458 optocoupler datasheet

Whether you are building a smart home switch or a power supply, the A1458 is a reliable, cost-effective component to keep in your parts bin.

Optimized for high-speed operations with a propagation delay of approximately 35 ns at 10 kHz Voltage Range: Operates with a wide cap V sub cap C cap C end-sub 3.0V to 5.5V : Isolated line receivers and high-speed logic ground

, often hermetically sealed for high-reliability applications. Typical Applications

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 Power Consumption: Low current draw

For detailed schematic layouts, PCB land patterns, and precise electrical characteristics, it is essential to consult the official Broadcom or manufacturer HCNW datasheet . If you'd like, I can:

Offers excellent immunity to fast voltage transients (

Rated at 5300 Vrms, protecting sensitive control logic from high-voltage spikes. Power Consumption: Low current draw, with ICCcap I sub cap C cap C end-sub maximum around 1.2 mA. Common Mode Rejection (CMR): Very high immunity to noise ( >50is greater than 50 🛠️ Typical Pin Configuration