1458 Optocoupler Datasheet _best_ Jun 2026

The —often associated with high-density multi-channel configurations like the ILD1458 or specialized phototransistor outputs—is a foundational component in modern electronics. It bridges the gap between high-voltage power domains and low-voltage digital control circuits. By using light to transmit signals across an isolation barrier, this component prevents catastrophic ground loops, suppresses electrical noise, and safeguards sensitive microcontrollers.

If this works, your "1458 optocoupler" behaves exactly like a 4N35.

Before analyzing datasheet parameters, it is crucial to address the part number conflict. 1458 optocoupler datasheet

The is a high-performance, high-speed optocoupler optimized for low-voltage signal isolation. Manufactured by Broadcom (formerly Avago Technologies), this device features a GaAsP LED optically coupled to an integrated high-gain photodetector . It provides up to 3750 Vrms of electrical isolation to protect sensitive logic circuits from high-voltage spikes, eliminate ground loops, and minimize common-mode noise in demanding digital environments. Core Specifications Overview

Your exact and target switching frequency The maximum isolation voltage ( VRMScap V sub cap R cap M cap S end-sub ) your regulatory standards require If this works, your "1458 optocoupler" behaves exactly

The 1458 optocoupler is widely used in various applications requiring electrical isolation and signal transfer, including:

* Input side V_IN ----|>|----+---- R_IN ---- GND LED | | ( ) Pull‑up resistor R_PULL (10 kΩ) to V_CC | +----> V_OUT (collector) | ( ) Emitter to GND Designed for high-performance applications

is an 8-pin, hermetically sealed logic gate optocoupler. Designed for high-performance applications, it operates with a wide VCCcap V sub cap C cap C end-sub

Assuming your "1458 optocoupler" is a standard DIP-6, here is the pinout (identical to 4N35, PC817, and most general-purpose types):

If you are sourcing components, you can check inventory or download verified datasheets directly through distributors like the Jotrin Electronics HCPL-1458 Portal or the Xecor Components Database.