BT155Z-1200TQ

Scrs Overview

The BT155Z-1200TQ is a planar passivated Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It is housed in an IITO3P 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 surge current of 650A. The device supports a maximum junction temperature of 150°C and features a gate trigger current maximum of 50mA with a dV/dt rating of 1500V/µs.

Scrs Feature Summary

• Utilizes advanced planar passivation technology for high-voltage durability and robust safe-operating-area capability.
• Engineered to withstand very high inrush currents and provide superior thermal cycling performance.
• Features strong immunity to false triggering and exceptional dynamic performance under industrial conditions.

Scrs Applications

• Industrial motor drives
• High-power rectification circuits
• Applications requiring high junction operating temperatures

Scrs Procurement Notes

Verify the specific ordering suffix 'Q' against the manufacturer's official documentation to confirm packaging details, as this suffix typically denotes the rail pack configuration. Ensure the component meets RoHS compliance standards and lead-free plating requirements specified in the datasheet before finalizing procurement specifications.

Scrs Selection Notes

Select this component when the application demands a standard recovery SCR with a 1200V blocking voltage and 50A continuous current handling. The IITO3P package is suitable for designs prioritizing high thermal stability and ruggedness. Confirm that the required gate trigger characteristics align with the 50mA maximum specification and that the system can accommodate the 1500V/µt dV/dt sensitivity.

Scrs Part Context

This part belongs to the BT155 series of thyristors from WeEn Semiconductors, which are characterized by best-in-class planar passivation technology. The series is designed for general-purpose power control applications, offering a balance of high voltage tolerance and reliable switching performance in industrial environments.

Scrs Replacement Considerations

Consult official substitution lists for equivalent SCRs with matching 1200V ratings and TO-247 or compatible package footprints. Verify that any substitute maintains the same 50A average current and 650A surge current capabilities to ensure circuit integrity.

Scrs FAQ

What is the maximum junction temperature for the BT155Z-1200TQ?

The maximum junction operating temperature (Tj max) for this component is 150°C.

Does the BT155Z-1200TQ use planar passivation technology?

Yes, it is manufactured using advanced planar passivation technology to ensure high reliability and durability.

What is the non-repetitive peak surge current rating?

The device has a non-repetitive peak surge current (Itsm) rating of 650A.