T1650H-6T

Overview

The STMicroelectronics T1650H-6T is a general-purpose mains power AC switching Triac in the H-Series, rated for 16 A RMS on-state current and 600 V repetitive peak off-state voltage. It operates within a junction temperature range of -40°C to +150°C and supports a non-repetitive surge current of 168 A. Key electrical parameters include a maximum gate trigger current (Igt) of 50 mA, a maximum gate trigger voltage (Vgt) of 1 V, and a maximum holding current (Ih) of 75 mA. The device features a peak on-state voltage of 1.5 V and a peak gate power dissipation of 1 W. Packaged in a TO-220 through-hole housing with three pins, it measures 10.4 mm in length and 15.9 mm in height.

Feature Summary

• High thermal performance allowing reduced heatsink requirements compared to traditional Triacs due to high switching capability up to 150°C junction temperatures.
• Snubberless design providing very high 3-quadrant commutation capabilities for reliable operation in general-purpose AC switching applications.
• Low thermal resistance achieved through clip bonding technology, enhancing heat dissipation efficiency.

Applications

• General purpose mains power AC switching
• On/off or phase angle control functions in value-sensitive appliances
• Motor drive and control systems

Procurement Notes

Verify the specific suffix '6T' confirms the TO-220 through-hole package variant rather than surface mount options like '6G'. Confirm RoHS compliance status and UL certification file E81734 applicability for your region. Ensure the 16A rating aligns with your thermal management design, as performance depends heavily on junction temperature limits.

Selection Notes

Select this component when a medium-current Triac with high commutation capability is required for AC loads. The 150°C max junction temperature allows for compact designs with smaller heatsinks. Compare Igt and Ih values against your gate drive circuit to ensure proper triggering and latching. Consider the TO-220 package constraints for PCB layout and mounting space availability.

Part Context

The T1650H-6T belongs to STMicroelectronics' H-Series Triacs, designed for robust AC power control. This series includes variants with different current ratings and packages, such as the T1635H-6T with lower gate sensitivity and the T1650H-6G in a D2PAK surface-mount package. All share the Snubberless™ technology and high-temperature operation characteristics.

Replacement Considerations

The T1635H-6T offers identical electrical ratings but with a lower gate trigger current of 35 mA. The T1650H-6G provides the same specifications in a TO-263 (D2PAK) surface-mount package. Verify pinout compatibility and thermal resistance differences when substituting these variants.