BT151X-500R,127

Scrs Overview

The BT151X-500R,127 is a planar passivated Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It is housed in a SOT186A (TO-220F) full pack plastic package designed for high thermal cycling performance. Key electrical ratings include a repetitive peak off-state voltage of 500 V and an RMS on-state current of 12 A. The device supports an average on-state current of 7.5 A and a non-repetitive peak surge current of 120 A. It features a maximum gate trigger current of 15 mA and a junction temperature rating up to 125 °C.

Scrs Feature Summary

• Planar passivated silicon construction ensures robust bidirectional blocking voltage capability.
• SOT186A full pack plastic package provides enhanced thermal cycling performance.
• High surge current capability suitable for demanding power control applications.

Scrs Applications

• Motor control systems
• Lighting dimmers
• General purpose power switching

Scrs Procurement Notes

Verify the specific ordering suffix and packaging configuration against official manufacturer documentation before procurement. Confirm that the component meets required industrial qualification standards and RoHS compliance specifications. Ensure the selected variant matches the intended thermal management requirements for the target application environment.

Scrs Selection Notes

Select this component when high bidirectional blocking voltage and reliable surge handling are required in a through-hole format. The TO-220F full pack package offers superior thermal dissipation compared to standard variants. Consider the 12 A RMS current rating and 500 V voltage class for appropriate circuit protection and switching duties.

Scrs Part Context

This part belongs to the BT151 series of Silicon Controlled Rectifiers from WeEn Semiconductors. The series includes various voltage ratings and package options, such as the BT151-500R in TO-220AB and surface mount versions like the BT151S-500R. The BT151X-500R specifically utilizes the SOT186A package for improved mechanical and thermal stability.

Scrs Replacement Considerations

Cross-reference with other manufacturers offering equivalent 500 V, 12 A SCRs in TO-220F packages. Verify pinout compatibility and thermal resistance characteristics when substituting with parts from NXP or other suppliers within the BT151 family.