MCT273X

Transistor, Photovoltaic Output Optoisolators Overview

The MCT273X is a single-channel optocoupler manufactured by Isocom Components. It integrates an infrared emitting diode with a silicon NPN phototransistor in a standard 6-pin dual-in-line package. The device provides electrical isolation between input and output circuits, featuring a coupling capacitance of less than 0.5 pF. It supports an isolation test voltage of 5300 VRMS and complies with Underwriters Laboratory file #E52744.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a Gallium Arsenide infrared LED with a silicon NPN phototransistor for signal transmission
• Provides high-voltage isolation with a 5300 VRMS test voltage rating
• Features low input-output coupling capacitance for high-frequency noise rejection
• Compatible with common logic families for interface applications

Transistor, Photovoltaic Output Optoisolators Applications

• AC mains detection circuits
• Switch mode power supply feedback loops
• Logic ground isolation systems
• Telephone ring detection interfaces

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'X' against official Isocom Components documentation to confirm exact packaging or tape-and-reel specifications. Ensure the component meets required UL and VDE safety approvals for the target application environment. Cross-reference datasheet parameters such as current transfer ratio and isolation voltage before integration.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when galvanic isolation is required between logic circuits operating at different potentials. The low coupling capacitance makes it suitable for applications requiring high-frequency noise rejection. Verify that the phototransistor output characteristics match the load requirements of the receiving circuitry.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the MCT2 family of industry-standard single-channel phototransistor couplers. It shares functional similarities with other devices in the series, such as the MCT270 through MCT277 variants, which utilize identical internal structures but may differ in specific electrical ratings or packaging options.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include the MCT270, MCT271, MCT272, MCT274, MCT275, MCT276, and MCT277 from Isocom Components. Other manufacturers producing equivalent 6-pin DIP optocouplers with similar pinouts and isolation ratings may also serve as alternatives.