HMHA2801R4V

Transistor, Photovoltaic Output Optoisolators Overview

The HMHA2801R4V is a single-channel transistor output optocoupler manufactured by onsemi. It features a 3750Vrms isolation voltage and utilizes a 4-Mini-Flat surface-mount package. The device provides an NPN phototransistor output with a maximum collector-emitter voltage of 80V and a collector current of 50mA. Key electrical parameters include a typical forward voltage of 1.3V, a saturation voltage of 300mV, and rise/fall times of 3µs. The Current Transfer Ratio ranges from 80% to 600% at a forward current of 5mA. It operates within a temperature range of -55°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Utilizes a compact surface-mount package for space-constrained designs
• Features fast switching characteristics suitable for digital signal transmission

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose digital isolation in industrial control systems
• Signal coupling in microcontroller-based interfaces
• Power supply feedback loops requiring galvanic isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix R4V indicates tape and reel packaging, distinct from standard tube variants. Confirm RoHS compliance status through official manufacturer declarations. Ensure the component matches the 4-Mini-Flat footprint requirements during PCB layout validation. Cross-reference datasheet revisions to confirm parameter consistency before finalizing procurement specifications.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a low-profile, high-isolation voltage optocoupler is required for SMT assembly. The 3750Vrms rating supports safety standards for mains-connected applications. Consider the 3µs propagation delay for timing-sensitive digital signals. Evaluate the 80-600% CTR range to ensure adequate noise margin across varying operating temperatures and LED drive currents.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HMHA28 series of miniature optocouplers designed for high-density mounting. The Mini-Flat package offers a smaller footprint compared to traditional SOIC packages while maintaining robust isolation performance. It serves as a compact alternative for applications where board space is limited but high isolation reliability remains critical.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HMHA2801 is the base model variant, typically supplied in tubes rather than reels. Verify pinout compatibility and package dimensions when substituting between packaging styles. Ensure the replacement maintains the same isolation voltage and output transistor configuration.