MOC256R1M

Transistor, Photovoltaic Output Optoisolators Overview

The MOC256R1M is a single-channel optocoupler manufactured by Fairchild Semiconductor, housed in an 8-pin SOIC surface-mount package. It features an AC/DC input LED paired with a Darlington phototransistor output configured with a base lead for enhanced performance. The device provides a minimum current transfer ratio of 20% at a forward current of 10mA and offers an isolation voltage rating of 2500Vrms.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a high-gain Darlington phototransistor output stage to ensure reliable signal transmission across the isolation barrier.
• Supports both AC and DC input signal types, providing versatility for various interface applications.
• Includes a dedicated base terminal on the phototransistor to allow for external biasing or speed adjustment.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface modules

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm that the part matches the specific MOC256R1M designation, as variants may exist within the family. Check for RoHS compliance status and verify the package marking against the datasheet specifications to avoid counterfeit components.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a high-current transfer ratio is required for driving loads directly without additional amplification. The inclusion of a base pin allows designers to optimize switching speed or sensitivity by adjusting external resistance. Ensure the isolation voltage rating meets the safety requirements of the target application circuit.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the MOC256 series of small outline surface mount optocouplers from Fairchild Semiconductor. It is designed for general-purpose isolation tasks where compact packaging and high gain are necessary. The series typically includes variations with different pin configurations or output types, but the R1M suffix denotes the specific Darlington configuration with base access.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers: None identified in available documentation.