T1625T-8I

Triacs Overview

The T1625T-8I is a standard 16 A triac from STMicroelectronics, housed in a TO-220AB-Insulated package with ceramic insulation. It supports on/off and phase angle control for general-purpose AC switching applications. The device features four-quadrant triggering capability with a specified trigger current of 25 mA. It provides electrical isolation rated at 2500 V rms between the tab and terminals. The component operates within a junction temperature range of -40 °C to +150 °C and complies with RoHS directives.

Triacs Feature Summary

• Four-quadrant triggering functionality for versatile gate drive configurations
• Integrated ceramic insulation providing 2500 V rms isolation rating
• UL certified component under reference file E81734

Triacs Applications

• General purpose AC switching circuits
• On/off function controllers
• Phase angle control systems

Triacs Procurement Notes

Verify the specific part number T1625T-8I against official STMicroelectronics documentation to confirm it corresponds to the standard 16 A variant rather than the snubberless T1620T or T1635T series. Ensure the TO-220AB-Insulated package type matches system requirements for thermal management and isolation needs. Confirm compliance with relevant safety standards such as UL1557 before finalizing procurement specifications.

Triacs Selection Notes

Select this component when four-quadrant triggering sensitivity is required for the application design. The insulated package is suitable for designs needing high voltage isolation without external components. Verify that the 25 mA gate trigger current aligns with the driving circuit capabilities. Consider the 150 °C maximum junction temperature for thermal performance assessments in constrained environments.

Triacs Part Context

This triac belongs to the broader family of STMicroelectronics power switching devices designed for mains power applications. It shares the TO-220AB-Insulated form factor with other variants like the T1620T-8I and T1635T-8I. While those counterparts utilize Snubberless technology for enhanced commutation, the T1625T-8I represents the standard configuration within this insulated package lineup.

Triacs Replacement Considerations

The T1620T-8I and T1635T-8I are direct pin-compatible alternatives in the same insulated package. These substitutes offer Snubberless technology and three-quadrant triggering instead of four-quadrant operation. Verify if the application requires the specific four-quadrant sensitivity of the T1625T-8I or if the snubberless characteristics of the other models provide sufficient performance.