HMHAA280R3V

Transistor, Photovoltaic Output Optoisolators Overview

The HMHAA280R3V is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and supports both AC and DC input types. The device provides 3750 Vrms isolation voltage and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 50 mA, and a typical rise/fall time of 3 µs/3 µs. The current transfer ratio ranges from 50% to 600% at 5 mA forward current. It is housed in a 4-Mini-Flat surface-mount package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Supports direct AC input without external rectification circuitry
• Provides high-voltage galvanic isolation for signal transmission
• Features fast switching speeds suitable for digital communication
• Designed for compact surface-mount applications

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring isolated signal interfaces
• Power supply feedback loops for voltage regulation
• Microcontroller input isolation for noise immunity
• Solid-state relay driver circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component status as the HMHAA280R3V is listed as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors or secondary markets. Ensure replacement parts meet all original electrical specifications and pinout compatibility before integration into new designs.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when AC input capability is required alongside standard transistor output isolation. Compare current transfer ratio variations across operating temperatures. Verify that the 3750 Vrms isolation rating meets safety standards for the target application environment. Consider thermal dissipation limits within the Mini-Flat package during continuous operation.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HMHA series of optocouplers designed for general-purpose isolation. The series includes variants with different packaging and electrical characteristics. The HMHA280R3V specifically targets applications needing AC input support in a small form factor. It complements other onsemi isolation products for complete system design solutions.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HMHAA280R2V is documented as a similar alternative within the same manufacturer lineup.