HMHA2801AR2

Transistor, Photovoltaic Output Optoisolators Overview

The HMHA2801AR2 is a single-channel transistor output optocoupler from onsemi, housed in a 4-pin Mini-Flat surface-mount package. It features an NPN phototransistor output with a maximum collector-emitter voltage of 80 V and a collector current rating of 50 mA. The device provides an isolation voltage of 3750 Vrms and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a forward voltage of 1.3 V at a maximum forward current of 50 mA, and a power dissipation of 210 mW. The current transfer ratio ranges from 80% to 160%, with typical rise and fall times of 3 µs each.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage isolation of 3750 Vrms for safe signal transmission between circuits.
• Utilizes a compact 4-pin Mini-Flat SMD package suitable for space-constrained designs.
• Features fast switching performance with 3 µs rise and fall times for efficient data transfer.

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose digital signal isolation in industrial control systems
• Power supply feedback loops requiring galvanic separation
• Microcontroller interface circuits for noise immunity

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix AR2 corresponds to the required tape-and-reel packaging configuration when ordering. Confirm that the component meets RoHS compliance standards as indicated by the manufacturer's declaration. Ensure the selected distributor sources directly from authorized channels to guarantee authenticity and traceability of the onsemi manufactured part.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a small footprint and moderate speed are required for DC input isolation. The 80-160% CTR range offers sufficient gain for standard logic interfacing without excessive drive current. Consider the 3750 Vrms isolation barrier for applications demanding robust safety certification compliance.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HMHA2801A series, which includes variants with different current transfer ratios such as the HMHA2801R2 offering up to 600% CTR. The HMHA2801AR2 specifically targets applications where a lower, more consistent gain profile is preferred over high sensitivity, fitting within the broader family of mini-flat phototransistor optocouplers designed for general isolation tasks.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The HMHA2801R2 serves as a functional substitute within the same package but exhibits a significantly higher current transfer ratio (up to 600%). Designers must verify if the increased gain affects circuit stability or requires adjustment of the input resistor values to maintain proper operation levels.