BT258U-600R,127

Scrs Overview

The BT258U-600R is a Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It features an 8A RMS current rating and supports 600V blocking voltage in both forward and reverse directions. The device utilizes a TO-251 plastic IPAK-3 package with an inline configuration. Key electrical characteristics include a maximum DC gate trigger current of 0.2 mA, a peak non-repetitive surge current of 75 A, and a maximum junction temperature of 125°C. It is designed for sensitive gate applications.

Scrs Feature Summary

• Passivated sensitive gate thyristor construction
• Direct interface capability with microcontrollers and logic ICs
• Plastic envelope design for general purpose switching

Scrs Applications

• General purpose switching
• Phase control applications
• Low power gate trigger circuits

Scrs Procurement Notes

Verify the specific manufacturer designation, as this component appears in catalogs from multiple entities including WeEn Semiconductors and NXP. Confirm the package type matches the required TO-251 form factor. Ensure the orderable part number includes the correct suffix to match the desired packaging format. Cross-reference the RoHS compliance status with current regulatory requirements before finalizing procurement.

Scrs Selection Notes

Select this component when a sensitive gate SCR is required for direct interfacing with low-power logic circuits. The TO-251 package offers a compact solution compared to larger through-hole options. Consider the 600V rating for standard AC line applications. Verify that the thermal management requirements align with the specified maximum junction temperature limits for the intended operating environment.

Scrs Part Context

This device belongs to the BT258 series of passivated silicon controlled rectifiers. The series includes variants with different voltage ratings and package types, such as the BT258-600R in TO-220 and the BT258X-600R in TO-220F. All variants share similar electrical characteristics regarding current handling and gate sensitivity, differing primarily in physical footprint and mounting style.

Scrs Replacement Considerations

Compatible substitutes within the same family include the BT258-600R and BT258X-600R. These alternatives offer identical electrical performance but utilize different packages (TO-220 or TO-220F). Ensure the replacement part matches the PCB layout constraints due to the distinct pin configurations and dimensions of each package type.