QTM3033T1

Triac, SCR Output Optoisolators Overview

The QTM3033T1 is a single-channel optoisolator featuring a Triac output, manufactured by QT Brightek. It provides an isolation voltage of 3750Vrms and supports a peak off-state voltage of 250 V. The device incorporates a zero-crossing detection circuit to minimize electromagnetic interference during switching. It operates within a temperature range of -55°C to 100°C and utilizes a 4-Mini-Flat surface-mount package. Key electrical parameters include a maximum DC forward current of 60 mA and a holding current of 250µA.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing circuit for low-noise AC power control
• High insulation capability with 3750Vrms isolation rating
• Compact 4-Mini-Flat surface-mount packaging design

Triac, SCR Output Optoisolators Applications

• Solid-state relay (SSR) modules
• AC motor speed controllers
• Lighting dimmer circuits

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'T1' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the 250 V off-state voltage rating aligns with the target AC line voltage specifications. Ensure compatibility with the 4-Mini-Flat footprint dimensions during PCB layout finalization.

Triac, SCR Output Optoisolators Selection Notes

Select this component when high isolation voltage and zero-crossing functionality are required in a compact form factor. The 250 V rating suits lower-voltage AC applications. Consider the operating temperature range of -55°C to 100°C for environmental suitability. Verify that the 60 mA LED drive current fits within the available GPIO or driver capabilities.

Triac, SCR Output Optoisolators Part Context

This part belongs to the QTM303X series from QT Brightek, designed for general-purpose AC switching applications. It shares architectural similarities with other members of the family but differs in specific voltage ratings and package configurations. The series emphasizes reliability and compliance with international safety standards such as UL and VDE certifications.

Triac, SCR Output Optoisolators Replacement Considerations

Cross-reference with other QTM303X series variants if different voltage ratings or package types are needed. Verify pinout compatibility before substituting with generic Triac optocouplers to ensure proper circuit integration.