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S4008DS3RP
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Product Detailed Parameters
- Description：SCR 400V 8A TO252
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：500 µA
- Current - Hold (Ih) (Max)：8 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 S4008DS3RP is a silicon-controlled rectifier (SCR) manufactured by Littelfuse, designed for surface-mount applications in the DPAK-2 (TO-252-2) package. It features an 8 A RMS on-state current rating and a 400 V repetitive peak off-state voltage. The device requires a gate trigger current of 500 uA and a gate trigger voltage of 800 mV to activate. It exhibits a maximum holding current of 8 mA and a forward voltage drop of 1.6 V. The component operates within a temperature range of -40 C to +110 C and supports non-repetitive surge currents up to 100 A.
Feature Summary
- Surface-mount construction in a compact DPAK-2 package for automated PCB assembly
- Low gate sensitivity requiring minimal control power for triggering
- High surge current capability for robust protection against transient events
Applications
- AC/DC power supply circuits
- Industrial motor control systems
- Lighting dimmer applications
Procurement Notes
Verify the specific ordering suffix to ensure the correct packaging configuration matches production requirements. Confirm RoHS compliance status through official manufacturer documentation before integration. Validate that the DPAK-2 footprint aligns with the target printed circuit board design constraints.
Selection Notes
Select this component when a low-cost, high-current SCR is required for surface-mount designs. Ensure the 400 V voltage rating exceeds the peak line voltage in the application. Verify that the 8 A continuous current rating accommodates the load requirements without exceeding thermal limits.
Part Context
This part belongs to the Sxx08xSx series of thyristors from Littelfuse. The series provides standardized performance characteristics for general-purpose power control applications. The S4008DS3RP variant specifically addresses the need for reliable switching in space-constrained electronic assemblies.
Replacement Considerations
Consult official Littelfuse substitution guides for verified equivalent parts. Do not assume pin compatibility or electrical equivalence with generic SCRs from other manufacturers without cross-referencing datasheet parameters.
