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S4008LS2TP
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Product Detailed Parameters
- Description：SCR 400V 8A TO220
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tube
- 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：Through Hole
- Package / Case：TO-220-3 Isolated Tab
- Supplier Device Package：TO-220 Isolated Tab
- 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 S4008LS2TP is a silicon-controlled rectifier (SCR) manufactured by Littelfuse Inc., belonging to the Sxx08xSx series. It features an 8 A RMS on-state current and a 400 V repetitive peak off-state voltage rating. The device utilizes a sensitive gate structure with a maximum gate trigger voltage of 800 mV and a maximum gate trigger current of 200 µA. It is housed in a TO-220-2 isolated tab package for through-hole mounting, supporting an operating temperature range from -40°C to +110°C.
Feature Summary
- Sensitive gate architecture enabling reliable triggering with low control power requirements
- Isolated tab construction providing electrical isolation between the terminal and heatsink mounting surface
- Robust thermal management capability via the TO-220-2 package design
Applications
- AC power switching circuits
- Solid-state relay implementations
- Motor speed control systems
Procurement Notes
Verify the specific suffix 'TP' against the manufacturer's official datasheet to confirm the tube packaging configuration. Ensure the ordered component matches the exact part number to avoid discrepancies in pinout or isolation characteristics compared to non-isolated variants.
Selection Notes
Select this component when an 8 A RMS current capacity and 400 V blocking voltage are required in a through-hole isolated package. The sensitive gate specification allows for direct interfacing with standard logic outputs without excessive drive current. Confirm that the thermal dissipation requirements align with the TO-220-2 package capabilities.
Part Context
This SCR is part of Littelfuse's general-purpose thyristor lineup designed for industrial and consumer power control applications. The S4008LS2TP variant specifically addresses designs requiring galvanic isolation between the main power circuit and the mounting hardware, distinguishing it from standard non-isolated TO-220 devices.
Replacement Considerations
Direct parameter-equivalent replacements include the S4006LS2TP and S4010LS2TP within the same manufacturer family. Verify that the alternative part number maintains the identical TO-220-2 isolated tab package and sensitive gate specifications before substitution.
