MCT271M

Transistor, Photovoltaic Output Optoisolators Overview

The MCT271M is a single-channel phototransistor optocoupler manufactured by onsemi, housed in a 6-DIP package. It provides a high isolation voltage of 7500Vrms between input and output circuits. The device features a DC input driving an NPN phototransistor output with a base terminal for enhanced switching control. Key electrical parameters include a collector-emitter saturation voltage of up to 400mV, a maximum forward current of 100mA, and a typical propagation delay of 3µs for both turn-on and turn-off times. The unit operates within a temperature range of -55°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides robust electrical isolation with a 7500Vrms dielectric strength rating
• Includes a dedicated base terminal on the phototransistor output for improved switching speed and linearity
• Designed for general-purpose digital signal transmission and interface applications

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial communication interfaces
• Microprocessor system isolation
• Solid-state relay driver circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors due to the prevalence of counterfeits in the market. Confirm that the specific suffix matches the required package type and insulation clearance specifications. Ensure compliance with relevant safety standards such as UL, CSA, and VDE before integration into certified equipment designs.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high-voltage isolation requirements exceed standard 5kV ratings. The integrated base pin allows for faster discharge of stored charge, reducing storage time compared to base-less variants. Consider thermal management constraints if operating near the upper limit of the specified junction temperature range.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the MCT2 series of phototransistor optocouplers from onsemi. The series includes variants with different insulation clearances and package styles, such as the MCT2M and MCT2EM. The MCT271M specifically denotes the version with 7500Vrms isolation capability in a DIP-6 configuration, distinguishing it from lower-rated or surface-mount alternatives within the same family.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

• MCT2202300W

Transistor, Photovoltaic Output Optoisolators FAQ

What is the difference between MCT271M and MCT2202300W?

The primary difference is the isolation voltage rating; the MCT271M offers 7500Vrms, whereas the MCT2202300W provides 5300Vrms. Both share similar electrical characteristics and package types.

Does the MCT271M have a base connection?

Yes, the MCT271M features a phototransistor output with an accessible base terminal, allowing for external biasing or faster switching control.