H11A1SR2VM

Overview

The H11A1SR2VM is a single-channel transistor output optocoupler manufactured by onsemi. It integrates an aluminum gallium arsenide infrared LED with a silicon phototransistor featuring a base lead for enhanced switching performance. The device utilizes a 6-SMD gull-wing package designed for surface mount applications. Key electrical specifications include a maximum collector-emitter voltage of 30 V, a forward current rating of 60 mA, and a minimum current transfer ratio of 50%. It offers an isolation voltage of 4170 Vrms and operates within a temperature range of -40°C to +100°C.

Feature Summary

• Integrates an infrared LED driver with a silicon phototransistor that includes a dedicated base terminal to facilitate faster turn-off times and improved noise immunity.
• Provides high-voltage electrical isolation between input and output circuits through a robust dielectric barrier rated at 4170 Vrms.
• Constructed in a compact 6-lead surface mount package suitable for automated assembly processes in space-constrained designs.

Applications

• Industrial control systems requiring signal isolation between microcontrollers and power stages
• Solid-state relay interfaces for AC or DC load switching
• Communication interface isolation in data acquisition networks

Procurement Notes

Verify the specific suffix SR2VM confirms the reel packaging configuration and RoHS compliance status prior to ordering. Confirm the manufacturer's current production status and lead time requirements against project schedules. Ensure the selected distributor provides valid traceability documentation and adheres to electrostatic discharge handling protocols during receipt and storage.

Selection Notes

Select this component when a standard phototransistor output is insufficient due to slow switching speeds or poor noise tolerance. The integrated base lead allows external biasing to accelerate carrier removal, making it suitable for higher frequency digital isolation tasks compared to basic variants. Evaluate the 30 V collector-emitter voltage limit to ensure compatibility with downstream logic levels.

Part Context

This part belongs to the H11A1M series of general-purpose optocouplers from onsemi. The series is widely recognized for its reliability in industrial environments. The SMD variant replaces traditional through-hole DIP packages to support modern surface mount technology manufacturing lines while maintaining equivalent electrical performance characteristics.

Replacement Considerations

Direct pin-compatible replacements within the same family include H11A1SMTR and H11A1SMT. Verify that substitute parts maintain the same 4170 Vrms isolation rating and 6-SMD gull-wing footprint to ensure mechanical and electrical compatibility without circuit redesign.