ELM453L(TA)-V

Overview

The ELM453L(TA)-V is a high-speed single-channel optocoupler manufactured by Everlight Electronics. It integrates an infrared LED emitter with a phototransistor detector within a compact five-pin SOP package. The device provides electrical isolation between input and output circuits, supporting data transmission rates up to 1 Mbit/s. It features a rated isolation voltage of 3750 Vrms, ensuring robust safety standards for digital logic interfacing and impedance transformation applications.

Feature Summary

• High-speed signal transmission capability suitable for digital logic interfaces
• Compact surface-mount packaging design for automated assembly
• Integrated infrared LED and phototransistor for efficient electro-optical conversion
• High insulation voltage rating for safe circuit isolation

Applications

• Digital logic signal transmission and level shifting
• Power supply control and switching circuits
• Electrical isolation between distinct system components
• Impedance transformation in communication interfaces

Procurement Notes

Verify the specific suffix (TA) against the manufacturer's latest documentation to confirm pinout configuration and tape-and-reel specifications. Ensure compatibility with the intended SOP footprint on the PCB layout. Cross-reference the part number with official distributor catalogs to confirm current availability status and any recent product process change notifications that may affect physical dimensions or material composition.

Selection Notes

Select this component when high-speed data transfer is required alongside galvanic isolation. The SOP-5 package offers space efficiency compared to through-hole alternatives. Consider the 1 Mbit/s speed limit and 3750 Vrms isolation rating as primary constraints. Evaluate thermal management requirements based on the operating temperature range and forward current limits specified in the datasheet for the target application environment.

Part Context

This device belongs to the ELM45x series of high-speed optocouplers from Everlight. The series is designed for applications requiring fast response times and reliable isolation. The ELM453L variant specifically denotes the SOP-5 package configuration. Related parts in the family include variants with different suffixes indicating packaging or testing variations, such as ELM453(TA)-V and ELM453L(TB)-V.

Replacement Considerations

Direct substitutes include other high-speed transistor-output optocouplers in SOP-5 packages with comparable isolation ratings. Verify pin-to-pin compatibility before substitution. Alternative models from other manufacturers must match the 1 Mbit/s speed and 3750 Vrms isolation specifications to ensure functional equivalence in existing designs.