H11A5

Transistor, Photovoltaic Output Optoisolators Overview

The H11A5 is a single-element transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features a gallium arsenide infrared emitting diode coupled to an NPN phototransistor with a base terminal for improved switching performance. The device provides high isolation voltage of 5300Vrms and operates within a temperature range of -55°C to 100°C. Key electrical parameters include a minimum collector-emitter breakdown voltage of 30V, a maximum forward current of 60mA, and a nominal current transfer ratio of 30%. The unit is available in a 6-DIP package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using infrared LED and phototransistor technology
• Includes a base terminal on the phototransistor to facilitate faster switching speeds and reduced storage time
• Designed for high-voltage isolation applications requiring robust signal transmission across isolated boundaries

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring signal isolation
• Consumer electronics power supply feedback loops
• Microprocessor system interface isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix code (e.g., DIP vs SMD) as it determines the physical package type. Confirm RoHS compliance status for the specific batch, as older Harris-manufactured variants may differ from current Vishay production. Ensure the required isolation voltage rating matches the application safety standards before procurement.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a transistor output optocoupler with a base pin is required for enhanced switching characteristics. Consider the 5300Vrms isolation rating for high-voltage separation needs. Verify that the 60mA maximum forward current and 30% CTR meet the drive requirements of the target circuit design.

Transistor, Photovoltaic Output Optoisolators Part Context

The H11A5 belongs to the H11A series of transistor output optocouplers. This family is widely used for general-purpose isolation tasks. The part is produced by Vishay Semiconductor Opto Division, continuing lineage from previous manufacturers like Harris. It serves as a standard solution for digital signal isolation in various electronic assemblies.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

H11A53S is listed as a discontinued alternative by onsemi. H11AG1VM is noted as a similar replacement option. Verify pinout compatibility and electrical specifications before substituting.