S4016NTP

Overview

The S4016NTP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse Inc. It features a maximum repetitive peak off-state voltage of 400 V and an RMS on-state current rating of 16 A. The device utilizes a TO-220AB flange mount package with three pins, where the case is connected to the anode. It operates within a temperature range from -40°C to +125°C. Key electrical characteristics include a maximum DC gate trigger current of 30 mA and a forward voltage drop of approximately 1.6 V at rated current. This component is designed for surface-mount or through-hole integration in power control applications requiring robust thyristor performance.

Feature Summary

• High thermal stability with a junction temperature range extending to +125°C
• Robust mechanical construction using a flange mount plastic/epoxy package
• Sensitive gate triggering capability for efficient circuit drive requirements

Applications

• Industrial motor speed control systems
• Solid-state relay switching circuits
• General purpose AC power regulation

Procurement Notes

Verify the specific suffix 'NTP' against official Littelfuse documentation to confirm exact packaging and tape-and-reel specifications. Ensure the ordering part number matches the required TO-220AB variant and check for any RoHS compliance updates in the latest datasheet revision before finalizing procurement orders.

Selection Notes

Select this component when a 16 A RMS current capacity and 400 V blocking voltage are required in a standard TO-220 form factor. Consider the 30 mA maximum gate trigger current for driver compatibility. Verify that the thermal management solution supports the specified operating temperature range and power dissipation levels under continuous load conditions.

Part Context

This SCR belongs to the Littelfuse S-series of silicon controlled rectors, which are widely used in industrial and consumer power electronics. The S4016NTP shares the core electrical architecture with other devices in the S40xx family but differs in its specific current rating and package configuration. It serves as a fundamental switching element in thyristor-based power control topologies.

Replacement Considerations

Direct replacements may include other 16 A, 400 V SCRs in TO-220 packages from Littelfuse or competitors. Verify pinout compatibility and thermal resistance values. Cross-reference datasheets to ensure equivalent gate sensitivity and holding current specifications match the original design requirements.