BT151X-650LTFQ

Scrs Overview

The BT151X-650LTFQ is a planar passivated Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It utilizes a SOT186A (TO-220F) full pack plastic package designed for applications requiring high bidirectional blocking voltage and high current surge capability with high thermal cycling performance. The device features a maximum repetitive peak reverse voltage of 650 V, an average on-state current of 7.5 A, and an RMS on-state current of 12 A. It supports a non-repetitive peak on-state current of 120 A and has a maximum junction temperature rating of 125 °C.

Scrs Feature Summary

• Planar passivated silicon construction for robust performance
• SOT186A TO-220F full pack package optimized for thermal cycling
• High bidirectional blocking voltage capability
• High surge current handling capacity

Scrs Applications

• Industrial motor control systems
• Power supply circuits
• Lighting dimmer applications

Scrs Procurement Notes

Verify the specific suffix 'LTFQ' against official manufacturer documentation to confirm exact packing and qualification details. Ensure the component matches the required TO-220F footprint and electrical ratings for the target design. Cross-reference the orderable part number with current production status to avoid obsolete stock issues.

Scrs Selection Notes

Select this component when high bidirectional blocking voltage and thermal cycling resilience are required in a through-hole format. The TO-220F full pack package provides superior heat dissipation compared to standard packages. Consider the 125 °C maximum junction temperature limit for high-temperature environments.

Scrs Part Context

This SCR belongs to the BT151 series from WeEn Semiconductors, which includes various voltage ratings and package options. The BT151X variant specifically denotes the TO-220F full pack configuration, distinguishing it from standard TO-220 or surface-mount alternatives within the same family.

Scrs Replacement Considerations

Compatible substitutes include other BT151 series SCRs with matching voltage and current ratings, such as BT151X-650R or BT151X-800R, provided the package and electrical specifications align with the original design requirements.