HMHA2801AR4

Transistor, Photovoltaic Output Optoisolators Overview

The HMHA2801AR4 is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output 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 forward current of 50 mA. The device provides an isolation voltage of 3750 Vrms and exhibits a typical rise/fall time of 3 µs. Current transfer ratio ranges from 80% to 160%, with a maximum power dissipation of 210 mW.

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 signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic families
• Power supply feedback loops requiring galvanic isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'R4' against the manufacturer's official datasheet to confirm reel packaging specifications and tape-and-reel dimensions. Ensure compatibility with automated pick-and-place equipment requirements. Cross-reference RoHS compliance status and material declarations with the latest product change notices issued by onsemi prior to final procurement authorization.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output optocoupler with 3750 Vrms isolation is required. Consider the 80-160% current transfer ratio for gain stability. Verify that the 50 mA forward current capability meets the driving circuit constraints. Ensure the operating temperature range of -55°C to +100°C aligns with the environmental conditions of the target application.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HMHA series of miniature flat optocouplers designed for surface mount technology. The series emphasizes compact footprint and reliable performance in isolated signal applications. The HMHA2801 variant specifically denotes the standard current transfer ratio range, distinguishing it from high-CTR variants within the same family.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HMHA2801A (tube packaging)

Transistor, Photovoltaic Output Optoisolators FAQ

What is the maximum isolation voltage rating?

The maximum isolation voltage is 3750 Vrms.

What is the typical switching speed?

The typical rise and fall times are both 3 microseconds.