HMHA281R2V

Transistor, Photovoltaic Output Optoisolators Overview

The HMHA281R2V 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 with a typical rise and fall time of 3 µs. Current transfer ratio ranges from 50% to 600%, and the maximum power dissipation is 210 mW.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using a phototransistor configuration.
• Features a compact surface-mount Mini-Flat package designed for space-constrained applications.
• Offers fast switching performance with typical rise and fall times of 3 microseconds.

Transistor, Photovoltaic Output Optoisolators Applications

• Signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic devices
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix R2V to confirm the tape-and-reel packaging format and compliance status. Ensure the procurement source provides valid RoHS documentation. Cross-reference the manufacturer part number against official datasheets to confirm the 3750 Vrms isolation rating and Mini-Flat package dimensions before finalizing orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage is required in a small footprint. The NPN phototransistor output suits digital signal interfacing. Consider the 50 mA forward current limit and 80 V collector voltage for circuit design compatibility. Verify thermal management requirements given the 210 mW power dissipation capability in the SMD-4 package.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HMHA281 series of transistor output optocouplers. It shares functional similarities with other members like HMHA281V but differs in packaging and specific electrical ratings such as isolation voltage and power dissipation. The series is designed for general-purpose isolation tasks requiring reliable signal transmission across potential differences.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HMHA281V is a related variant within the same series, though it may differ in isolation voltage and packaging type. Verify pinout compatibility and electrical specifications before substitution. Other generic transistor output optocouplers may require redesign due to differing CTR or isolation ratings.