Datasheet - 1458 Optocoupler

Over years of continuous operation, the light output of the internal LED will gradually decrease. Designers typically factor in a 20% to 50% safety margin for high-reliability systems. 6. Primary Applications

Key identifying characteristics of this family include: 1458 optocoupler datasheet

Your targeted or switching frequency. The voltage levels you need to isolate. Over years of continuous operation, the light output

Used in data communication lines where ground loops or high noise levels are present. (often marked as a photocoupler or isolation IC),

(often marked as a photocoupler or isolation IC), it is likely a standard 4-pin or 6-pin DIP optocoupler similar to the industry-standard PC817 or 4N35 series.

Note: If your chip has 6 pins (like a 4N35), Pins 3, 4, 5, and 6 correspond to the Base, Collector, and Emitter. Always check the physical datasheet if possible.

Exceeding the maximum limitations designated by the manufacturer can lead to permanent silicon degradation. Circuit designers should look for verified parts on platforms like Mouser Electronics or Farnell to cross-verify the specific breakdown voltages matching their region's electrical compliance codes. Input LED Specifications (Emitter) : Max continuous (Pulse limits can handle up to Reverse Input Voltage ( VRcap V sub cap R ) : Max absolute limit. Forward Voltage Drop ( VFcap V sub cap F ) : Typically at an input of Output Detector Specifications (Receiver) Supply Voltage ( VCCcap V sub cap C cap C end-sub ) : Recommended range between