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S2055M
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Product Detailed Parameters
- Description：SCR 200V 55A TO218
- Series：-
- Mfr：Littelfuse Inc.
- Package：Bulk
- 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-218-3, TO-218AC
- Supplier Device Package：TO-218 Non-Isolated Tab
- 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 S2055M is a standard Silicon Controlled Rectifier (SCR) from the Teccor Sxx55x series, designed for phase control applications. It features a rated repetitive off-state voltage of 200 V and an on-state RMS current rating of 55 A. The device exhibits an off-state leakage current of 10 uA at VDRM and a forward voltage drop of 1.8 V. Gate triggering requires a maximum breakover current of 650 A, with gate trigger voltages and currents specified at 1.5 V and 5 mA to 40 mA respectively. The holding current maximum is 60 mA. It operates within a temperature range of -40 C to +125 C and utilizes a TO-218 through-hole package.
Feature Summary
- Excellent unidirectional switching capability for phase control circuits
- Glass-passivated junctions for enhanced reliability
- Low gate trigger requirements enabling efficient control
Applications
- Heating systems
- Motor speed controls
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer's official datasheet specifications against the physical markings on the device. Confirm that the part number suffix matches the exact electrical ratings required for the design. Ensure the package type and pinout configuration align with the intended PCB layout before finalizing procurement decisions.
Selection Notes
Select this component based on its 200 V voltage rating and 55 A current handling capacity suitable for standard phase control loads. Consider the TO-218 package for through-hole mounting requirements and verify thermal management needs given the operating temperature range up to 125 C. Ensure the gate trigger characteristics match the driving circuit capabilities.
Part Context
This SCR belongs to the Teccor brand thyristor family, specifically the Sxx55x series known for standard phase control performance. It serves as a robust semiconductor switch for industrial and commercial equipment requiring reliable AC power regulation. The product line emphasizes durability and consistent switching behavior in demanding electrical environments.
Replacement Considerations
Consult the manufacturer's official substitution guide for verified equivalent parts. Ensure any replacement maintains identical voltage, current, and package specifications to guarantee circuit compatibility.
