BTA312-800C/DG,127

Triacs Overview

The BTA312-800C/DG,127 is a planar passivated high commutation three-quadrant triac manufactured by WeEn Semiconductors. It is housed in an IITO-220 internally insulated plastic package designed for circuits experiencing high static and dynamic dV/dt and dI/dt conditions. The device supports a rated repetitive off-state voltage (VDRM) of 800 V and an RMS on-state current (IT(RMS)) of 12 A. It features a non-repetitive peak surge current (ITSM) of 100 A at 50/60 Hz. The maximum gate trigger current (IGT) is specified as 35 mA across quadrants Q1, Q2, and Q3. The component exhibits a critical rate of voltage rise (dV/dt) rating of 500 V/µs and operates with a maximum junction temperature (Tj) of 125 °C.

Triacs Feature Summary

• Internally isolated mounting base within the IITO-220 package provides electrical insulation between the terminal and the heatsink.
• High commutation capability allows the device to switch full RMS current at maximum rated junction temperatures without requiring external snubber circuits.
• Planar passivation technology ensures enhanced voltage ruggedness and long-term reliability under harsh electrical conditions.

Triacs Applications

• Electronic thermostats for heating and cooling systems
• High power motor controls in appliances such as washing machines and vacuum cleaners
• Refrigeration and air-conditioner compressor controls

Triacs Procurement Notes

Verify the specific suffix 'DG,127' against the manufacturer's official ordering list to confirm packaging configuration and compliance status. Ensure the selected variant matches the required internal isolation specifications for the intended thermal management design. Cross-reference the 12NC code with current production status to avoid obsolete stock issues during procurement.

Triacs Selection Notes

Select this component when circuit designs require robust commutation performance at elevated temperatures without snubber networks. The internally insulated package simplifies thermal interface implementation while maintaining safety isolation. Confirm that the 800 V blocking voltage and 12 A current ratings exceed the application's peak operational demands to ensure adequate derating margins.

Triacs Part Context

This part belongs to the BTA312 series of high commutation triacs from WeEn Semiconductors. The series includes variants like BTA312-800C and BTA312X-800C with different package options. The 'C' designation indicates a three-quadrant triggering mode optimized for high dV/dt immunity. The DG suffix typically denotes tape and reel packaging, while 127 refers to the standard packing quantity.

Triacs Replacement Considerations

Direct substitutes include BTA312-800C,127 and BTA312X-800C,127. Verify package compatibility, as BTA312X-800C uses TO-220F and BTA312-800C uses TO-220AB. Both alternatives share identical electrical parameters but differ in physical mounting requirements.