BTA312B-800C,118

Triacs Overview

The BTA312B-800C,118 is a planar passivated high commutation three-quadrant triac manufactured by WeEn Semiconductors. It is housed in a TO263 (D2PAK) surface-mountable plastic package designed for circuits experiencing high static and dynamic dV/dt and high dI/dt. The device features an 800 V repetitive peak off-state voltage and a 12 A RMS on-state current capability. It supports a non-repetitive surge current of 100 A and operates with a maximum junction temperature of 125 °C. The gate trigger current is rated at 50 mA across quadrants Q1, Q2, and Q3, ensuring reliable triggering.

Triacs Feature Summary

• Planar passivated construction provides robust performance in high commutation environments
• Surface-mount TO263 package facilitates automated assembly and thermal management
• High dV/dt and dI/dt ratings ensure stability in demanding circuit conditions

Triacs Applications

• Industrial motor control systems requiring high commutation reliability
• Solid-state relays operating under high transient voltage stress
• Power regulation circuits interfacing with microcontrollers via sensitive gate drive

Triacs Procurement Notes

Verify the specific suffix '118' against official WeSem datasheets to confirm the reel packing configuration and RoHS compliance status. Ensure the ordering part number matches the exact type designation required for your bill of materials. Cross-reference the 12NC code for accurate inventory tracking and supply chain documentation.

Triacs Selection Notes

Select this component when a surface-mount TRIAC with high commutation capabilities is required. The TO263 package offers a compact footprint suitable for PCB space constraints. Consider the 125 °C junction temperature limit for thermal design calculations. Verify that the 50 mA gate sensitivity meets the drive strength of the controlling logic circuit.

Triacs Part Context

This part belongs to the BTA312 series of high commutation triacs from WeEn Semiconductors. The series includes variants like the BTA312B-800B and BTA312B-800E, which differ primarily in gate sensitivity and commutation characteristics. The BTA312B-800C variant specifically targets applications needing balanced performance between commutation and gate drive requirements.

Triacs Replacement Considerations

Check for direct substitutes such as the BTA312B-800B or BTA312B-800E within the same family. Verify pinout compatibility and thermal resistance values before substitution. Ensure the replacement part meets the same 800 V and 12 A ratings.