HMAA2705AR1

Transistor, Photovoltaic Output Optoisolators Overview

The onsemi HMAA2705AR1 is a single-channel transistor output optocoupler featuring AC and DC input compatibility. It integrates two inverse-parallel gallium arsenide infrared emitting diodes driving a silicon phototransistor within a compact 4-pin Mini-Flat surface-mount package. Key electrical parameters include a maximum collector-emitter voltage of 40 V, a peak forward current of 50 mA, and an isolation voltage of 3750 Vrms. The device supports a current transfer ratio ranging from 50% to 300%, with a maximum power dissipation of 150 mW and an operating temperature range spanning -40°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual infrared LED configuration enables direct AC or DC signal input without external rectification components.
• Compact 4-pin Mini-Flat package design minimizes board space requirements while maintaining high insulation reliability.

Transistor, Photovoltaic Output Optoisolators Applications

• Digital logic signal transmission and level shifting between isolated circuits
• Power supply control and switching applications requiring galvanic isolation
• Impedance transformation and electrical isolation between system subsystems

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation (e.g., R1) against official datasheets to confirm tape and reel packaging quantities and binning specifications. Confirm RoHS compliance status and check for active manufacturing lifecycle status, as availability may vary by region. Ensure the selected variant matches the required current transfer ratio group for circuit performance validation.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when AC input capability is required in a small form factor. The dual-diode input structure simplifies driver circuitry compared to single-diode alternatives. Verify that the 40 V collector-emitter voltage rating exceeds the maximum load voltage in the target application. Consider the 3750 Vrms isolation rating for safety-critical interfaces requiring robust dielectric strength.

Transistor, Photovoltaic Output Optoisolators Part Context

The HMAA2705 series belongs to onsemi's family of compact optocouplers utilizing gallium arsenide infrared emitters. This series is designed for applications demanding high isolation voltage in minimal footprint packages. The HMAA2705 variant specifically distinguishes itself through its dual-LED input architecture, enabling versatile AC/DC operation within the same Mini-Flat housing format used across the broader product line.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The FODM2705R2 is identified as a potential manufacturer substitute. Verify pinout compatibility and electrical parameter equivalence before implementation.