BT151S-500L,118

Scrs Overview

The BT151S-500L,118 is a planar passivated Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It is housed in a SOT428 (DPAK/TO-252) surface-mount plastic package designed for high bidirectional blocking voltage and thermal cycling performance. Key electrical parameters include a repetitive peak off-state voltage of 500 V, an on-state RMS current of 12 A, and a non-repetitive peak surge current of 120 A. The device features a maximum gate trigger current of 5 mA and supports junction temperatures up to 125 °C.

Scrs Feature Summary

• Planar passivated silicon construction for robust bidirectional blocking voltage capability
• Surface-mountable DPAK package optimized for high thermal cycling performance
• High surge current handling suitable for demanding industrial environments

Scrs Applications

• Motor control circuits
• Industrial heating systems
• Static switching applications
• Lighting dimmers

Scrs Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm exact packaging configuration. Ensure that the selected variant matches the required RoHS compliance status and lead-free plating specifications for the intended assembly process. Cross-reference the component marking with the datasheet to prevent substitution errors during procurement.

Scrs Selection Notes

Select this component when a surface-mount SCR is required for applications demanding high bidirectional blocking voltage and thermal stability. The DPAK package facilitates automated PCB assembly while maintaining the electrical characteristics of through-hole equivalents. Consider the 12 A RMS current rating and 500 V voltage limit to ensure adequate headroom for the specific circuit design requirements.

Scrs Part Context

This device belongs to the BT151 series of standard recovery thyristors produced by WeEn Semiconductors, a joint venture involving NXP Semiconductors. The series is engineered for general-purpose power control applications requiring reliable performance under high stress conditions. The SOT428 package variant provides a compact footprint compared to traditional through-hole options.

Scrs Replacement Considerations

Direct pin-compatible replacements within the same series include the BT151S-500R,118. Verify that alternative components match the 500 V voltage rating and 12 A current capacity before implementation.