1458 Optocoupler Datasheet [verified]

If you were looking for a different "1458" part, it might be one of these: LM1458/LM1558 Dual Operational Amplifier datasheet (Rev. D)

The generated infrared light travels across the transparent dielectric isolation barrier. Because there is no electrical connection between the input and output sides, electrical noise, spikes, and high-voltage faults cannot cross this gap.

Standard Dual-Channel (DIP-8) Pinout +---_---+ Anode 1 | 1 8 | Collector 2 Cathode 1 | 2 7 | Emitter 2 Anode 2 | 3 6 | Collector 1 Cathode 2 | 4 5 | Emitter 1 +-------+ Pin Descriptions

The 1458 optocoupler integrates an Infrared Light Emitting Diode (IR LED) optically coupled to a silicon NPN phototransistor within a single compact package. 1458 optocoupler datasheet

Comprehensive Guide to the 1458 Optocoupler: Datasheet, Pinout, and Applications

Circuit 1: Microcontroller interfacing with a 24V Industrial Load

Designed for high-voltage galvanic isolation barriers to prevent ground loops. Core Functionality Like most optocouplers, the consists of two primary internal components: Input Side: If you were looking for a different "1458"

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 you’ve landed here, you likely have a component marked "1458" in hand and are looking for its datasheet. However, before you wire it up, there is a crucial identification step you need to take. In the world of electronics, part numbers can be tricky, and "1458" is often a source of confusion.

The output stage is an open collector, providing flexibility in designing the output interface. HCPL-1458 Pinout and Functional Description Standard Dual-Channel (DIP-8) Pinout +---_---+ Anode 1 |

Logic signal output pin (Typically Open-Collector or Logic Gate) VEcap V sub cap E No connection or enable function (variant dependent) Pin 8 VCCcap V sub cap C cap C end-sub Positive supply voltage for output circuit bias Note: Datasheets recommend placing a

If you need help identifying a specific manufacturer for the

The photons strike the base area of the internal phototransistor. This generates electron-hole pairs in the semiconductor material, producing a base current.

Microcontrollers (like Arduino, ESP32, or STM32) operate at 3.3V or 5V and can be easily destroyed by electrical noise from 24V industrial relays or motors. The 1458 isolates the MCU entirely.