1458 Optocoupler Datasheet Jun 2026

The —often listed in datasheets as the NTE1458 or referenced alongside similar industrial optoisolators—is a specialized electronic component designed to provide electrical isolation between two separate circuits. By transferring electrical signals using light waves, it prevents high voltages from damaging sensitive receiving components.

: The output is compatible with standard Transistor-Transistor Logic (TTL), simplifying its use with microcontrollers and digital circuits. Performance Characteristics Typical Value / Description Propagation Delay Supply Voltage ( cap V sub cap C cap C end-sub 3.0V to 5.5V Package Type SOP-8 (Hermetically Sealed) Output Type Open Collector Typical Applications The HCPL-1458 is frequently used for Microcontroller Interfacing

The HCPL-1458 is known for its high-speed performance and robust isolation capabilities. Below are the typical parameters found in its datasheet:

Keep in mind that the specific details may vary depending on the manufacturer and the particular variant of the 1458 optocoupler. Always consult the datasheet from the manufacturer you're using for the most accurate information. 1458 optocoupler datasheet

Ground connection for the output photodetector circuit. Pin 6 ( VOUTcap V sub cap O cap U cap T end-sub

: Protecting microcontrollers from high-voltage spikes and ground loops.

Here are the headline features you'd typically see on the datasheet's first page: The —often listed in datasheets as the NTE1458

When designing with the 1458, always cross-reference specific parameters with the exact datasheet provided by your component vendor (such as Avago/Broadcom, Toshiba, or ON Semiconductor) to verify variations in suffix code speed and voltage maximums.

If you try to send a 1 MHz signal through a standard 4N35, it will turn into a triangle wave. For fast communication, you need a high-speed optocoupler (like the 6N137), not a 1458 equivalent.

+24V Sensor Signal | [R_in] | +---+ (Pin 1) |-->| Input LED +---+ (Pin 2) | GND (24V System Ground) --------------------------------------- [Isolation Barrier] V_CC (+5V MCU Power) | [R_pullup] | +-----> To MCU GPIO Pin | +---+ (Pin 6) | / | Phototransistor |< | +---+ (Pin 5) | GND (MCU System Ground) Input Resistor ( Rincap R sub i n end-sub ): To target a safe driving current of from a 24V source: Ground connection for the output photodetector circuit

You can find technical specifications on distributor sites like Alldatasheet or the manufacturer’s product page . 2. Other Components with "1458"

, allowing for seamless integration into both 3.3V and 5V logic systems. Low Drive Power : Requires low forward current ( cap I sub cap F