MOC208R2M

Transistor, Photovoltaic Output Optoisolators Overview

The MOC208R2M is a dual-channel transistor output optocoupler manufactured by Fairchild Semiconductor, now onsemi. It integrates two infrared LEDs with NPN phototransistors in an 8-SOIC package. Key electrical parameters include a 2500Vrms isolation voltage, 70V collector-emitter breakdown voltage, and 150mA maximum collector current. The device features a typical forward voltage of 1.25V at 60mA max input, with a current transfer ratio ranging from 40% to 125%. Operating temperatures span -40°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration providing two independent signal paths within a single compact surface mount package.
• High input-output isolation capability rated at 2500Vrms for safe potential separation between circuits.
• Closely matched current transfer ratios across channels to minimize variations in switching characteristics.

Transistor, Photovoltaic Output Optoisolators Applications

• Feedback control circuits requiring galvanic isolation
• Interfacing and coupling systems with different potentials and impedances
• General purpose switching circuits
• Monitor and detection circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the manufacturer designation as Fairchild Semiconductor or onsemi, noting the corporate acquisition history. Confirm the specific suffix R2M indicates the tape and reel packaging format if required for automated assembly. Ensure the component meets RoHS compliance standards as specified in the official documentation. Cross-reference the datasheet version to confirm electrical tolerances match the design requirements.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required in a space-constrained surface mount application. The 8-SOIC footprint offers compatibility with standard wave, vapor phase, and IR reflow soldering processes. Consider the 70V collector-emitter voltage rating for low-voltage logic interfacing. The dual-channel design allows for cost-effective implementation compared to using two single-channel devices.

Transistor, Photovoltaic Output Optoisolators Part Context

The MOC208R2M belongs to the MOCD20xM series of dual-channel phototransistor optocouplers. This family includes variants like the MOCD206M and MOCD207M, which share similar physical dimensions and isolation ratings but may differ in current transfer ratio specifications. The series is designed for general-purpose switching and signal isolation tasks.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes within the same series include MOCD206M and MOCD207M, provided their specific current transfer ratio ranges align with the circuit design. Verify pinout compatibility and package dimensions before substitution.

Transistor, Photovoltaic Output Optoisolators FAQ

What is the maximum collector-emitter voltage for the MOC208R2M?

The maximum collector-emitter breakdown voltage (Vceo) is 70 volts.

Does the MOC208R2M support surface mount technology?

Yes, it is housed in an 8-SOIC (Small Outline Integrated Circuit) package suitable for surface mount applications.

How many channels does the MOC208R2M contain?

The device contains two independent channels, each consisting of an infrared LED and a phototransistor.