S4065KTP

Scrs Overview

The Littelfuse S4065KTP is a silicon-controlled rectifier (SCR) from the Teccor Sxx65x series, designed for high-power switching applications. It features a 400 V rated repetitive off-state voltage and an RMS on-state current of 65 A. The device utilizes a sensitive gate structure with a maximum gate trigger current of 50 mA, enabling direct interfacing with microprocessors. Packaged in an SMTO-218 through-hole configuration, it supports operation within a temperature range of -40°C to +125°C. Key electrical characteristics include a peak forward voltage of 1.8 V and a non-repetitive surge current capability of 950 A.

Scrs Feature Summary

• Sensitive gate architecture allows for low-power control signals and direct microprocessor integration.
• Robust thermal management capabilities enabled by the SMTO-218 package design.
• High surge current tolerance ensures reliability during transient overcurrent events.

Scrs Applications

• Solid-state relays
• Motor speed controls
• Lighting dimmers

Scrs Procurement Notes

Verify the specific suffix 'KTP' against official Littelfuse documentation to confirm exact binning or testing variations. Ensure the ordering part number matches the required voltage and current ratings for the target circuit design before procurement.

Scrs Selection Notes

Select this component when a 65 A RMS current rating and 400 V blocking voltage are required in a through-hole package. Consider the 50 mA gate trigger sensitivity for logic-level driving compatibility. Verify that the SMTO-218 footprint fits the PCB layout constraints.

Scrs Part Context

This SCR belongs to the Teccor Sxx65x family, which provides standardized high-current thyristor solutions. The S4065KTP shares core electrical specifications with other variants in the series, differing primarily in manufacturing lot codes or specific testing parameters defined by the manufacturer.

Scrs Replacement Considerations

Cross-reference with other 65 A, 400 V SCRs in the TO-218 package from Littelfuse or competitors. Ensure gate trigger characteristics and thermal resistance values are compatible with the existing heat sink design.