HMAA2705R3V

Transistor, Photovoltaic Output Optoisolators Overview

The HMAA2705R3V is a single-channel transistor output optocoupler manufactured by onsemi. It features a compact 4-pin Mini-Flat SMD package with a lead pitch of 2.54 mm and a maximum standoff height of 2.4 mm. The device utilizes two gallium arsenide infrared emitting diodes connected in inverse parallel to drive a silicon phototransistor, enabling AC input capability. Key electrical parameters include an isolation voltage of 3750 Vrms, a collector-emitter saturation voltage of 300 mV maximum, and a current transfer ratio ranging from 50% to 300%. It operates within a temperature range of -40°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual inverse-parallel GaAs infrared LEDs enable direct AC signal input without external rectification.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring high-voltage isolation
• Consumer electronics with AC input interfaces
• Signal transmission between isolated circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm the specific suffix R3V corresponds to the required tape and reel packaging configuration. Ensure compliance with RoHS directives as indicated in official documentation before integration into production workflows.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when AC input detection is required in a compact surface-mount form factor. The dual-diode input structure simplifies circuit design by eliminating external rectifiers. Verify that the 40 V collector-emitter voltage and 80 mA collector current ratings meet the load requirements of the target application.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HMAA2705 series, which shares the same physical package and basic electrical characteristics as the HMAA2705R2V and HMAA2705R1V variants. The primary distinction lies in the packaging quantity and specific binning for current transfer ratio groups. All variants utilize the 4-pin Mini-Flat package designed for space-constrained PCB layouts.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The FODM2705R2 is a confirmed substitute part number listed by the manufacturer. Verify pin compatibility and ensure the replacement meets the specific current transfer ratio requirements of the original design.