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S4008NRP
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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)：1.5 V
- Current - Gate Trigger (Igt) (Max)：15 mA
- Current - Hold (Ih) (Max)：30 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：83A, 100A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°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)：10 µA
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Overview
The Littelfuse S4008NRP is a Silicon Controlled Rectifier (SCR) belonging to the Sxx08xSx series, designed for power control applications. It features an 8 A RMS on-state current rating and supports a repetitive peak off-state voltage of 400 V. The device utilizes a sensitive gate structure with a typical gate trigger current of 500 uA. It is housed in a DPAK-2 (TO-252-2) surface-mount package, facilitating automated assembly. The component operates within a junction temperature range of -40 °C to +110 °C and exhibits a maximum holding current of 8 mA.
Feature Summary
- Sensitive gate architecture enabling reliable triggering with low gate current requirements
- Surface-mount DPAK-2 packaging optimized for high-density PCB layouts
- Robust thermal performance supporting operation up to 110 °C junction temperature
Applications
- AC motor speed control circuits
- Solid-state relay switching stages
- General-purpose power regulation systems
Procurement Notes
Verify the specific datasheet revision and electrical characteristics directly from Littelfuse official documentation before integration. Confirm that the DPAK-2 footprint matches the target PCB design. Ensure compliance with RoHS and REACH standards as specified in the manufacturer's certification records.
Selection Notes
Select this component when a compact surface-mount SCR is required for moderate power handling. The 400 V rating suits low-voltage AC applications. Verify that the 500 uA gate sensitivity aligns with the driving circuit capabilities. Consider thermal management requirements given the TO-252-2 package constraints.
Part Context
This part belongs to the Littelfuse Sxx08xSx family of thyristors. These devices are engineered for cost-effective power switching in consumer and industrial electronics. The series offers various voltage ratings and package options to accommodate diverse design needs while maintaining consistent performance standards.
Replacement Considerations
Cross-reference with other S4008 variants such as S4008LS3TP or S4008DS3RP if pinout compatibility or package type differs. Verify that substitute parts maintain identical voltage and current ratings to ensure circuit integrity.
