MCT277

Transistor, Photovoltaic Output Optoisolators Overview

The MCT277 is a single-channel transistor output optocoupler manufactured by Isocom Components. It features a gallium arsenide infrared LED coupled to an NPN silicon phototransistor, providing electrical isolation between input and output circuits. The device is housed in a standard DIP-6 package, designed for surface mount or through-hole integration. Key electrical characteristics include a maximum collector-emitter voltage of 30 V and a high isolation voltage rating of 5300 Vrms. The unit supports a nominal current transfer ratio of 100% and operates within a temperature range of -55°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation via infrared LED and phototransistor coupling
• Features a single-element configuration with NPN silicon phototransistor output
• Designed for reliable signal transmission in isolated control applications

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring circuit isolation
• Solid-state relay driver circuits
• Signal isolation in measurement and instrumentation equipment

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the manufacturer designation on the component marking against official Isocom Components documentation. Confirm that the part number suffix matches the specific DIP-6 package variant required for your assembly process. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Cross-reference the datasheet specifications for thermal and electrical limits before finalizing procurement orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel isolation solution with a 5300 Vrms barrier is required. Consider the 30 V collector-emitter voltage limit for low-voltage switching applications. Evaluate the DIP-6 package constraints against available PCB real estate. Compare the 100% current transfer ratio against system gain requirements to ensure adequate signal integrity across the isolation boundary.

Transistor, Photovoltaic Output Optoisolators Part Context

This component belongs to the family of discrete optoelectronic isolators used for galvanic separation in electronic circuits. It serves as a fundamental building block for protecting sensitive control logic from high-voltage transients in power stages. The DIP-6 form factor allows for straightforward integration into legacy and modern printed circuit board designs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.