MOC205M

Transistor, Photovoltaic Output Optoisolators Overview

The MOC205M is a single-channel transistor output optocoupler manufactured by Fairchild Semiconductor. It integrates a gallium arsenide infrared emitting diode with a monolithic silicon phototransistor detector in a surface-mountable small outline plastic package. The device guarantees a minimum collector-emitter breakdown voltage (BVCEO) of 70V and supports a maximum forward current of 60mA. It features an insulation voltage rating of 2,500 VAC RMS for one minute under UL1577 certification.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a gallium arsenide infrared LED with a silicon phototransistor for optical isolation
• Provides high-density surface mount packaging to eliminate through-the-board mounting requirements
• Features closely matched current transfer ratios for consistent performance

Transistor, Photovoltaic Output Optoisolators Applications

• Feedback control circuits
• Interfacing and coupling systems of different potentials and impedances
• General purpose switching circuits
• Monitor and detection circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific manufacturer source, as this component was originally produced by Fairchild Semiconductor and may now be distributed by ON Semiconductor following corporate acquisitions. Confirm that the part status is acceptable for your design lifecycle, as some listings indicate the product may be obsolete or discontinued. Ensure the datasheet revision matches your required specifications before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select the MOC205M when a higher collector-emitter breakdown voltage of 70V is required compared to the 30V variants in the same family. This component is suitable for applications needing standard logic interfacing without the low input current characteristics found in MOC216/MOC217 series. Choose this SOIC-8 package for designs prioritizing board space efficiency over through-hole mounting constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

The MOC205M belongs to the MOC205-MOC217 series of small outline optocouplers with transistor outputs. These devices are designed for high-density applications where space is limited. The series includes variants with different BVCEO ratings, such as 30V for MOC211/MOC212 and 70V for MOC205/MOC206/MOC207, allowing designers to select appropriate isolation levels for specific circuit requirements.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other members of the MOC205-MOC217 series with compatible pinouts and package styles. Verify that replacement parts maintain the required 70V BVCEO rating if used in high-voltage isolation scenarios. Check for equivalent safety approvals such as UL1577 and DIN-EN/IEC60747-5-5 compliance.