HMAA2705R4

Transistor, Photovoltaic Output Optoisolators Overview

The HMAA2705R4 is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output and utilizes an AC input configuration with an arsenic gallium infrared LED. The device provides high isolation capability of 3750 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 40 V, a maximum collector current of 80 mA, and a forward current rating of 50 mA. The unit operates within a temperature range of -40°C to +100°C and is housed in a compact SMD-4 package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using an infrared LED and phototransistor pair.
• Designed for surface mount installation in a compact four-pin SMD package.
• Capable of handling high isolation voltages for signal transmission across potential differences.

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 component status carefully as the HMAA2705R4 is listed as obsolete or discontinued by the manufacturer. Confirm availability through authorized distributors or secondary markets if sourcing is required. Ensure that any replacement components meet the same electrical specifications and pinout compatibility to maintain system integrity without redesigning the circuit board layout.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output optocoupler with high isolation voltage is required for surface mount applications. Consider the 40 V collector-emitter voltage and 80 mA collector current limits to ensure adequate headroom for the specific load requirements. Verify that the operating temperature range meets the environmental conditions of the final assembly.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the family of transistor output optocouplers from onsemi, which are designed for general-purpose signal isolation. These devices typically integrate an infrared emitting diode with a silicon phototransistor to provide electrical isolation while transmitting digital or analog signals. The series is known for compact packaging options suitable for modern electronic designs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

FODM2705R2 is identified as a potential replacement option for this component. Verify that the substitute matches the required pinout, isolation voltage, and electrical characteristics before implementation.