A1458 Optocoupler Datasheet

: The PC817 is a very common, low-speed optocoupler. If you are designing for high-speed applications like digital audio or fast switching power supplies, the A1458 series is the superior choice. For simple on/off control (e.g., turning a light on/off), the PC817 is often sufficient and less expensive.

maximum), enabling data transmission rates of up to 1 Mb/s or higher depending on the specific application. a1458 optocoupler datasheet

Top-Down View (DIP-8 / SOP-8) +--- ---+ Anode | 1 8 | VCC (Supply Voltage) Cathode | 2 7 | No Connection (NC) NC | 3 6 | VO (Signal Output) NC | 4 5 | GND (Ground Connection) +-------+ : The PC817 is a very common, low-speed optocoupler

ONSEMI, DC Input Logic Gate Output Optocoupler, Surface Mount, 8-Pin Dip (5 Ct), 6N137SM A widely available high-speed single-channel optocoupler. maximum), enabling data transmission rates of up to

As one engineering analysis notes, "HCPL-1458 is stronger, with higher CTR and shorter response time, suitable for switching power supply feedback, digital signal isolation, and other scenarios with certain speed requirements. HCNW1458 is a ‘low-key powerhouse’! High withstand voltage, fast response, and good temperature stability, especially suitable for industrial control in high-temperature environments".

| Pin Number | Name | Function | | :--- | :--- | :--- | | 1 | NC | No Connect | | 2 | ANODE | Anode (+) of the input LED | | 3 | CATHODE | Cathode (-) of the input LED | | 4 | NC | No Connect | | 5 | GND | Ground connection for the output side | | 6 | VO | Output Voltage (open-collector output) | | 7 | VCC | Positive supply voltage for the output side | | 8 | GND | Ground connection for the output side |