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S4008NS2RP
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Product Detailed Parameters
- Description：SCR 400V 8A TO263
- 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)：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 (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：TO-263 (D2PAK)
- 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 S4008NS2RP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse, belonging to the Sxx08xSx series. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (It RMS) of 8 A. The device operates with a gate trigger current (Igt) of 500 uA and a gate trigger voltage (Vgt) of 800 mV. It exhibits a maximum holding current (Ih) of 8 mA and a non-repetitive peak on-state current of 100 A. The component is housed in a D2PAK-2 (TO-263-2) surface-mount package and supports an operating temperature range from -40 C to +110 C.
Feature Summary
- High sensitivity gate triggering for low-power control applications
- Robust thermal management via direct solder attachment to PCB copper planes
- Compact surface-mount form factor suitable for automated assembly
Applications
- AC power switching circuits
- Lighting dimmer controls
- Motor speed regulation systems
Procurement Notes
Verify the specific suffix 'NS2' against official Littelfuse documentation to confirm pinout and thermal pad configuration. Ensure the ordering quantity aligns with standard reel packaging requirements. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.
Selection Notes
Select this component when a 400 V blocking capability and 8 A continuous current rating are required in a TO-263-2 package. Compare the 500 uA gate trigger current against alternative devices if lower drive power is critical. Verify that the 100 A surge current rating meets the circuit's fault protection requirements.
Part Context
This SCR belongs to the Sxx08xSx family, which provides standardized thyristor solutions for general-purpose power control. The S4008NS2RP variant specifically utilizes the D2PAK-2 package, offering improved thermal dissipation compared to smaller SMD packages while maintaining a compact footprint relative to through-hole alternatives.
Replacement Considerations
Direct substitutes within the same series include S4008DS3RP, which shares identical electrical ratings but uses a DPAK-2 (TO-252-2) package. Verify mechanical compatibility and thermal performance differences when substituting between DPAK-2 and D2PAK-2 footprints.
