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S2055WTP
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Product Detailed Parameters
- Description：SCR 200V 55A TO218X
- 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)：60 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：550A, 650A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-218X-3
- Supplier Device Package：TO-218X
- Voltage - On State (Vtm) (Max)：1.8 V
- Current - On State (It (AV)) (Max)：35 A
- Current - On State (It (RMS)) (Max)：55 A
- Current - Off State (Max)：10 µA
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Overview
The Littelfuse S2055WTP is a Silicon Controlled Rectifier (SCR) component manufactured by Littelfuse Inc. This device functions as a semiconductor switch designed for power control applications. The specific part number suffix 'TP' typically denotes tape and reel packaging, facilitating automated surface-mount assembly processes. As an SCR, it provides robust latching behavior, maintaining conduction once triggered until the current drops below the holding threshold. This characteristic makes it suitable for circuits requiring reliable switching or crowbar protection mechanisms.
Feature Summary
- Provides semiconductor-based switching capability with latching behavior
- Designed for integration into power control and protection circuits
- Utilizes surface-mount construction for automated PCB assembly
Applications
- Power control systems requiring latching switches
- Crowbar protection circuits for overvoltage safeguarding
- Industrial equipment utilizing silicon controlled rectifiers
Procurement Notes
Verify the exact electrical specifications against the official Littelfuse datasheet for the S2055W series, as generic identifiers may not reflect specific voltage or current ratings. Confirm that the TP suffix aligns with required packaging formats for production lines. Ensure compatibility with existing circuit designs before procurement.
Selection Notes
Select this component based on its SCR topology and surface-mount form factor. Evaluate the required forward blocking voltage and on-state current against the application's peak loads. Consider the thermal management requirements associated with surface-mount packages and verify that the triggering characteristics match the control circuitry capabilities.
Part Context
This component belongs to the broader category of discrete semiconductors and power control devices offered by Littelfuse. While Littelfuse is widely recognized for fuses and surge protection, their portfolio includes various active components like SCRs for specialized switching needs. The S2055W designation identifies a specific variant within their SCR lineup.
Replacement Considerations
Consult Littelfuse documentation for direct cross-references. Verify that any substitute SCR matches the original package type, pin configuration, and critical electrical parameters such as breakover voltage and holding current to ensure circuit integrity.
