T1620T-8I

Triacs Overview

The T1620T-8I is a Snubberless Triac from STMicroelectronics, housed in a TO-220AB insulated package with a ceramic insulator. It supports an RMS on-state current of 16 A and offers a non-repetitive surge current of 120 A. The device features rated repetitive off-state voltages of 600 V or 800 V, with a maximum leakage current of 5 uA at VDRM. Gate triggering parameters include a voltage of 1.3 V and a current of 1 mA. It operates within a temperature range of -40°C to +150°C and provides 2500 V rms tab insulation.

Triacs Feature Summary

• Snubberless design allows operation without external RC networks when datasheet limits are respected
• High static and dynamic commutation capabilities for reliable switching
• Three-quadrant gate triggering sensitivity
• Tab-insulated package providing 2500 V rms isolation

Triacs Applications

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

Triacs Procurement Notes

Verify the specific voltage rating (600 V or 800 V) required for your application, as the T1620T-8I part number may correspond to different voltage grades within the series. Confirm that the TO-220AB insulated package meets your isolation requirements. Ensure the gate trigger current of 1 mA is compatible with your driving circuitry. Check for RoHS compliance status if environmental regulations apply to your manufacturing process.

Triacs Selection Notes

Select this component for applications requiring high commutation capability and direct microcontroller drive due to low gate current. The insulated package is suitable where electrical isolation between the heatsink and circuit ground is necessary. Consider the 150°C maximum junction temperature for thermal management in high-temperature environments. Compare against the T1620T-8G if surface mount packaging is preferred.

Triacs Part Context

The T1620T-8I belongs to STMicroelectronics' T-series of Snubberless Triacs. This series is designed for general-purpose AC power switching applications. The 'I' suffix typically denotes the through-hole TO-220AB insulated package variant. It shares functional similarities with other members like the T1610T-8I and T1235T-8I but differs in current ratings and package types.

Triacs Replacement Considerations

The T1620T-8G is a surface-mount alternative in the D2PAK package with similar electrical characteristics. For lower current applications, the T1235T-8I (12 A) or T835T-8I (8 A) may be considered if voltage ratings align. Verify pinout compatibility and thermal resistance differences when substituting.