S2008DS2RP

Overview

The Littelfuse S2008DS2RP is a sensitive silicon-controlled rectifier (SCR) designed for half-wave unidirectional applications. It features an 8 A RMS on-state current rating and a 600 V repetitive peak off-state voltage capability. The device utilizes a TO-252 D-Pak surface-mount package with glass-passivated junctions for reliability. Key electrical characteristics include a maximum DC gate trigger current of 200 µA, a holding current of 6 mA, and a non-repetitive surge current rating of 100 A. It operates within a temperature range of -40 °C to +110 °C.

Feature Summary

• Glass-passivated chip junctions provide long-term device reliability and parameter stability against contamination.
• High surge capability supports demanding transient conditions with up to 100 A peak one-cycle forward surge current.
• Surface mount D-Pak package facilitates automated assembly and space-efficient PCB layouts.

Applications

• General purpose rectification in low-power AC circuits
• Gate drive triggering for larger power thyristors
• Lighting control systems requiring sensitive gate inputs

Procurement Notes

Verify the specific suffix 'S2' indicates the standard gate sensitivity variant (200 µA max IGT) rather than higher sensitivity options like 'S3'. Confirm the 'D' designation corresponds to the non-isolated TO-252 D-Pak package configuration. Ensure RoHS compliance documentation is requested if required by your manufacturing standards.

Selection Notes

Select this component when an 8 A continuous current capacity and 600 V blocking voltage are required in a surface-mount form factor. The 200 µA gate trigger sensitivity makes it suitable for moderate drive strength applications. Consider thermal derating curves for operation above 25 °C case temperature to ensure safe junction temperatures under load.

Part Context

This part belongs to the Teccor line of sensitive SCRs, which complements Littelfuse's broader power SCR portfolio. The S2008 series specifically addresses the 8 A current bracket within the 200 V to 600 V voltage range family. It shares design similarities with other Sxx08x variants but differs in voltage rating and gate sensitivity codes.

Replacement Considerations

Direct replacements include other S2008DS2RP units from Littelfuse or equivalent 8 A/600 V SCRs in TO-252 packages. Verify that substitute devices match the 200 µA gate trigger current specification and maintain compatible thermal resistance values for the application.

FAQ

What is the maximum DC gate trigger current for the S2008DS2RP?

The maximum DC gate trigger current (IGT) is 200 µA at a case temperature of 25 °C.

Is the S2008DS2RP electrically isolated?

No, the 'D' in the part number denotes the non-isolated TO-252 D-Pak package. Electrically isolated versions use different suffixes such as 'L' or 'F'.

What is the peak non-repetitive surge current rating?

The device can withstand a peak one-cycle forward surge current (ITSM) of 100 A at 60 Hz.