A1458 Optocoupler Datasheet

) of depending on test configurations and sub-variants, enabling crisp high-frequency data transmission. Isolation Voltage Capacity ( VISOcap V sub cap I cap S cap O end-sub ): Rated up to 3,750 VRMScap V sub cap R cap M cap S end-sub VRMScap V sub cap R cap M cap S end-sub

The A1458 series is commonly housed in a compact, surface-mount or through-hole DIP-8 package footprint. The layout isolates the sensitive input emitter circuitry from the output detector circuitry using an internal physical gap.

The device is widely available in surface-mount SOP-8 or SOIC-8 packages, as well as 8-pin DIP formats for through-hole mounting. Some high-reliability versions are for use in aerospace or harsh industrial environments. HCPL-1458/ A1458 - Broadcom - Price, Inventory & Datasheets

Compare the A1458 with another optocoupler you are considering. a1458 optocoupler datasheet

Common in Switch-Mode Power Supplies (SMPS) to isolate control signals from high-voltage rails.

): Typically 3.0V to 5.5V or 4.5V to 5.5V, offering flexibility for different logic levels.

The HCPL-A1458 is typically housed in a small, compact 8-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package, designed to optimize board space. Input LED side. Cathode: Input LED side. NC (No Connection): Often unused. NC (No Connection): Often unused. GND (Ground): Output detector side. VOUTcap V sub cap O cap U cap T end-sub (Output): Logic output. VEcap V sub cap E (Enable): Enables/Disables output. VCCcap V sub cap C cap C end-sub (Supply Voltage): Output detector side supply. ) of depending on test configurations and sub-variants,

The reveals a robust, versatile, and reliable component for medium-speed, high-isolation applications. It is not the fastest optocoupler (do not use it for RS-485 or CAN bus isolation), nor is it the cheapest (the PC817 is slightly more economical). However, the A1458 shines in its excellent CTR consistency, wide temperature range, and high 5000Vrms isolation.

When you search for an , you may also encounter these competitors. Here’s how they stack up:

The A1458 is available in various package formats to suit different PCB designs: SOP-8 (Surface Mount) : Available for approximately at retailers like DIP-8 (Through-Hole) : Available for approximately comparison The device is widely available in surface-mount SOP-8

: High-speed gate driving for IGBTs and Power MOSFETs in industrial inverters .

In the world of electronics design, isolation is king. Whether you are protecting a sensitive microcontroller from high-voltage industrial machinery or simply eliminating ground loops in an audio circuit, the optocoupler (or optoisolator) is the silent guardian.