MOC8103

Transistor, Photovoltaic Output Optoisolators Overview

The MOC8103 is a single-channel transistor output optocoupler manufactured by Vishay Semiconductor Opto Division. It features an NPN phototransistor output with a collector-emitter voltage of 30V and a maximum collector current of 50mA. The device provides high isolation capability with an insulation voltage of 5300 VRMS. Key electrical parameters include a forward current of 60mA, a forward voltage of 1.5V, and a collector-emitter saturation voltage of 400mV. The current transfer ratio ranges from 108% to 173%. Switching characteristics include rise and fall times of 2µs each.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High common mode immunity due to the absence of a base terminal connection on the phototransistor
• Long-term stability for reliable signal transmission in isolated circuits
• Single channel configuration with NPN phototransistor output

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Signal interface circuits between microcontrollers and power stages
• Switching power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component status as obsolete or end-of-life before procurement planning. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing PCB footprints and thermal requirements. Check RoHS compliance status for environmental regulations. Validate datasheet revisions against current design specifications.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component for applications requiring high isolation voltage and improved noise immunity. Consider the lack of base terminal for enhanced common mode rejection. Evaluate the current transfer ratio range for logic level compatibility. Assess switching speed requirements against the 2µs rise/fall times. Verify package dimensions for through-hole mounting constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

The MOC8103 belongs to Vishay's family of transistor output optocouplers designed for general-purpose isolation. It shares functional similarities with other single-channel devices but distinguishes itself through specific isolation ratings and internal structure optimizations. The component serves as a bridge between low-voltage control circuits and higher-voltage load sides.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements may require design review. Equivalent components should match isolation voltage, current transfer ratio, and package type.