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S2035KTP
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Product Detailed Parameters
- Description：SCR 200V 35A TO218
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：200 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：40 mA
- Current - Hold (Ih) (Max)：50 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：425A, 500A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-218-3 Isolated Tab, TO-218AC
- Supplier Device Package：TO-218 Isolated Tab
- Voltage - On State (Vtm) (Max)：1.8 V
- Current - On State (It (AV)) (Max)：22 A
- Current - On State (It (RMS)) (Max)：35 A
- Current - Off State (Max)：10 µA
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Overview
The Littelfuse S2035KTP is a Silicon Controlled Rectifier (SCR) designed for high-power switching applications. It features a maximum RMS on-state current of 35A and an average on-state current of 22A. The device supports a repetitive peak reverse voltage of 600V and a non-repetitive peak forward voltage of 400V. Key electrical parameters include a maximum DC gate trigger current of 40mA and a maximum DC gate trigger voltage of 1.5V. The component operates within a junction temperature range of -40°C to 125°C and is housed in a TO-218AC flange mount package with three terminals.
Feature Summary
- High power handling capability with 35A RMS on-state current rating
- Robust voltage blocking performance up to 600V repetitive peak reverse voltage
- Flange mount construction for efficient thermal dissipation
- Low gate drive requirements for simplified control circuitry
Applications
- Industrial motor speed control systems
- Solid state relay modules
- Power supply regulation circuits
Procurement Notes
Verify the specific suffix 'TP' against the manufacturer's official documentation to confirm compliance status and packaging details. Ensure the selected variant matches the required thermal interface specifications for the intended heat sink application. Cross-reference the part number with the latest datasheet revision to confirm terminal pinout and mechanical dimensions before integration.
Selection Notes
Select this component when high current capacity and robust voltage ratings are required for AC power control. The TO-218AC package facilitates direct mounting to heatsinks for effective thermal management. Evaluate the gate trigger characteristics to ensure compatibility with the available control signal levels. Consider the thermal resistance values to determine appropriate cooling solutions for continuous operation at rated currents.
Part Context
The S2035KTP belongs to the broader family of Littelfuse silicon controlled rectifiers, which are engineered for reliable power switching in demanding environments. This series is characterized by high surge current capabilities and stable latching behavior. The TO-218AC form factor is standard for medium-to-high power discrete semiconductors requiring secure mechanical attachment and efficient heat transfer to external cooling structures.
Replacement Considerations
Potential substitutes include other 35A, 600V SCRs in TO-218 packages from Littelfuse or equivalent manufacturers. Verify that alternative parts meet the same RMS current, voltage blocking, and gate trigger specifications. Ensure mechanical footprint and thermal characteristics are compatible with existing board layouts and heatsinking designs.
