MCT2202

Transistor, Photovoltaic Output Optoisolators Overview

The MCT2202 is a single-channel phototransistor optocoupler manufactured by Isocom Components. It provides electrical isolation with a maximum output voltage of 30V and an isolation voltage rating of 5300Vrms. The device features a DC input type and outputs via a phototransistor with a base connection. Key electrical parameters include a maximum forward current of 100 mA, a typical forward voltage of 1.25V, and a collector-emitter saturation voltage of up to 400mV. The current transfer ratio ranges from 63% to 125% at 10mA input. Switching times are typically 2µs for both turn-on and turn-off. It operates within a temperature range of -55°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides high-voltage electrical isolation between input and output circuits using optical coupling technology.
• Integrates a phototransistor output with a dedicated base terminal to facilitate faster switching speeds and improved linearity.
• Designed for surface-mount or through-hole integration depending on the specific package variant.

Transistor, Photovoltaic Output Optoisolators Applications

• Signal isolation in industrial control systems
• Interface circuits for microprocessors and logic devices
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity as the MCT2202 is listed as obsolete and no longer manufactured by major producers. Confirm that any available stock represents genuine parts rather than refurbished items. Check datasheet revisions to ensure compatibility with original design specifications. Validate supplier credentials before purchase due to potential availability of counterfeit components in the market for discontinued parts.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a standard phototransistor output with base access is required for enhanced speed. Compare against modern equivalents if long-term supply stability is critical. Ensure the chosen package variant matches the PCB layout requirements. Verify that the 5300Vrms isolation rating meets safety standards for the target application environment.

Transistor, Photovoltaic Output Optoisolators Part Context

The MCT2202 belongs to the MCT2 series of phototransistor optocouplers. This family includes variants such as the MCT2200S and MCT2202SD, which share similar electrical characteristics but differ in packaging. The series is designed for general-purpose isolation applications requiring reliable signal transmission across isolated barriers.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include CNY172SR2M from onsemi. Other alternatives may exist within the same functional category, but direct pin-to-pin replacements should be verified against updated datasheets.

Transistor, Photovoltaic Output Optoisolators FAQ

What is the function of the base terminal on the phototransistor?

The base terminal allows for external biasing or grounding to improve switching speed and reduce storage time compared to a standard two-terminal phototransistor.

What is the maximum isolation voltage rating?

The device supports an isolation voltage of 5300Vrms, suitable for high-voltage isolation requirements.