QTM415T1

Overview

The QTM415T1 is a photovoltaic output optoisolator manufactured by QT Brightek (QTB). It features a single channel with 3750Vrms isolation voltage. The device utilizes a Darlington transistor output configuration housed in a 4-Mini-Flat package. Key electrical characteristics include a response time of 300 microseconds and an output current capability of 80mA. The component is designed for DC input applications and operates within standard industrial temperature ranges, providing reliable signal transmission across isolated circuits.

Feature Summary

• Photovoltaic output architecture for high-speed switching
• Integrated Darlington transistor stage for enhanced current drive
• Compact 4-Mini-Flat surface mount packaging
• High voltage isolation barrier for circuit protection

Applications

• Industrial automation control systems
• Signal isolation in data communication interfaces
• Power supply feedback loops
• Microcontroller interface circuits

Procurement Notes

Verify the specific datasheet version to confirm pinout compatibility and thermal ratings before integration. Ensure that the driving circuit can support the required forward current for the input LED. Confirm that the load connected to the photovoltaic output does not exceed the maximum current rating of 80mA. Check for any RoHS compliance documentation if environmental regulations apply to the final assembly.

Selection Notes

Select this component when high isolation voltage is required alongside fast switching speeds. The photovoltaic output type offers distinct advantages over standard transistor outputs in terms of speed and linearity. Consider the 4-Mini-Flat package size for space-constrained PCB layouts. Evaluate the 300us response time against system timing requirements to ensure adequate performance for the intended application frequency.

Part Context

This part belongs to the QT Brightek optocoupler family, specifically designed for applications requiring galvanic isolation. The manufacturer specializes in semiconductor components for lighting and isolation technologies. The QTM415T1 represents a solution for modern electronic designs needing robust signal transfer between low-voltage digital logic and higher-voltage analog or power sections.

Replacement Considerations

Direct substitutes must match the 3750Vrms isolation rating and photovoltaic output topology. Verify that alternative components offer comparable 80mA output current and similar 300us response times. Package compatibility with the 4-Mini-Flat footprint is essential for direct replacement without PCB redesign.