H11A2

Transistor, Photovoltaic Output Optoisolators Overview

The H11A2 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output with a base connection for improved switching speed and linearity. The device provides 5300 Vrms isolation voltage between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 30 V, a maximum forward current of 60 mA, and a minimum current transfer ratio of 20% at 10 mA input. The unit operates within a temperature range of -55°C to +100°C and is housed in a 6-DIP package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an infrared emitting diode with an NPN phototransistor featuring a base terminal for enhanced performance.

Transistor, Photovoltaic Output Optoisolators Applications

• General purpose signal isolation
• Industrial control systems
• Computer peripheral interfaces

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized channels as the H11A2 is listed as obsolete. Confirm that replacement parts meet all original electrical specifications, including isolation voltage and pinout compatibility. Review datasheet revisions for any changes in mechanical dimensions or testing conditions before finalizing procurement decisions.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and fast switching are required. The base connection allows for external biasing to optimize response time. Ensure the application environment stays within the specified operating temperature range. Verify that the 30 V collector-emitter voltage rating exceeds the load requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the standard transistor output optocoupler family from Vishay. It is designed for general-purpose isolation applications where reliable signal transmission across isolated barriers is necessary. The device utilizes gallium arsenide LED technology for efficient light emission.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include 4N25-000E. Verify pinout and electrical characteristics match before substitution.

Transistor, Photovoltaic Output Optoisolators FAQ

What is the isolation voltage rating?

The H11A2 supports an isolation voltage of 5300 Vrms.

Does the phototransistor have a base connection?

Yes, the output phototransistor includes a base terminal for external biasing.