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S4008DS2RP
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Product Detailed Parameters
- Description：SCR 400V 8A TO252
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：200 µA
- Current - Hold (Ih) (Max)：6 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：83A, 100A
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252 (DPAK)
- Voltage - On State (Vtm) (Max)：1.6 V
- Current - On State (It (AV)) (Max)：5.1 A
- Current - On State (It (RMS)) (Max)：8:00 AM
- Current - Off State (Max)：5 µA
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Overview
The Littelfuse S4008DS2RP is a silicon-controlled rectifier (SCR) from the Sxx08xSx series, designed for surface-mount applications in the DPAK-2 (TO-252-2) package. It features a rated repetitive off-state voltage of 400 V and an on-state RMS current of 8 A. The device has a gate trigger current of 200 uA and a maximum holding current of 6 mA. It operates within a temperature range of -40 C to +110 C and exhibits a forward voltage of 1.6 V.
Feature Summary
- High sensitivity gate triggering with low current requirements
- Robust thermal performance suitable for industrial environments
- Compact surface-mount footprint for automated assembly
Applications
- AC power control circuits
- Motor speed control systems
- Lighting dimmer applications
Procurement Notes
Verify the specific datasheet revision and RoHS compliance status directly with Littelfuse or authorized distributors before integration. Confirm that the DPAK-2 package dimensions match the target PCB layout. Ensure the gate trigger characteristics align with the driving circuit capabilities to guarantee reliable switching under all operating conditions.
Selection Notes
Select this component when an 8 A RMS current rating and 400 V blocking voltage are required in a compact SMD form factor. Compare the 200 uA gate sensitivity against other SCR variants if lower drive currents are available. Consider the 1.6 V forward voltage drop for thermal management calculations in high-duty cycle applications.
Part Context
This part belongs to the Sxx08xSx family of thyristors, which standardizes the 8 A current rating across various voltage classes. The 'DS' suffix typically denotes a sensing type SCR with specific gate characteristics. The 'RP' indicates reel packaging for surface-mount technology, facilitating high-volume manufacturing processes.
Replacement Considerations
Direct replacements must maintain the 8 A RMS current, 400 V voltage rating, and DPAK-2 package. Verify gate trigger current compatibility to ensure proper firing. Consult Littelfuse documentation for cross-reference lists or equivalent parts from other manufacturers with identical electrical specifications.
