BT155W-1200TQ

Scrs Overview

The BT155W-1200TQ is a planar passivated Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It is housed in a TO-247 plastic package and designed for applications requiring high inrush current capability and thermal cycling performance. Key electrical parameters include a repetitive peak reverse voltage of 1200V, an average on-state current of 50A, and a non-repetitive peak on-state current of 650A. The device features a maximum gate trigger current of 50mA and supports a maximum junction temperature of 150°C.

Scrs Feature Summary

• Utilizes advanced planar passivation technology for robust construction
• Engineered to withstand very high inrush current demands
• Optimized for high thermal cycling performance reliability

Scrs Applications

• Industrial motor drives
• High-power rectification circuits
• Applications requiring high thermal stability

Scrs Procurement Notes

Verify the specific ordering suffix 'Q' against official manufacturer documentation to confirm packaging details, as suffixes may indicate variations in tape-and-reel or rail pack configurations. Ensure compatibility with TO-247 mounting standards and verify RoHS compliance status through the latest datasheet before procurement.

Scrs Selection Notes

Select this component when designing circuits that demand high surge current handling alongside reliable operation under frequent thermal stress. The 1200V rating suits medium-to-high voltage AC control applications. Consider the 50A continuous current limit and ensure adequate heatsinking to maintain junction temperatures within the specified 150°C maximum limit during sustained operation.

Scrs Part Context

This SCR belongs to the BT155W series from WeEn Semiconductors, which focuses on standard recovery thyristors. The series is characterized by its use of planar passivation processes to enhance durability. It serves as a discrete power semiconductor solution for controlling high-power loads in industrial environments where reliability under harsh electrical conditions is critical.

Scrs Replacement Considerations

Direct replacements must match the 1200V voltage rating, 50A current capacity, and TO-247 package type. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers' 1200V SCRs in TO-247 packages, ensuring identical electrical specifications and mounting dimensions.