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S2055NRP
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Product Detailed Parameters
- Description：SCR 200V 55A TO263
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- 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：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：TO-263 (D2PAK)
- Voltage - On State (Vtm) (Max)：1.8 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 S2055NRP is a Silicon Controlled Rectifier (SCR) from the Teccor Sxx55x series, designed for surface-mount applications in the SMTO-263-2 package. It features a rated repetitive off-state voltage (VDRM) of 200 V and an on-state RMS current (It RMS) of 55 A. The device has a maximum breakover current (IBO) of 650 A and a non-repetitive on-state peak current of 650 A. Key electrical parameters include a forward voltage (Vf) of 1.8 V, gate trigger voltage (Vgt) of 1.5 V, and gate trigger current (Igt) of 40 mA. The holding current (Ih) maximum is 60 mA, with an off-state leakage current of 10 uA at VDRM. It operates within a temperature range of -40 C to +125 C.
Feature Summary
- Surface-mount construction in SMTO-263-2 package for automated PCB assembly
- High surge capability with 650 A non-repetitive on-state current rating
- Low gate trigger requirements facilitating simple control circuitry
Applications
- Phase control applications such as heating systems
- Motor speed controls
- General purpose AC switching circuits
Procurement Notes
Verify the specific ordering suffix and manufacturer part number against official Littelfuse documentation to ensure correct voltage and current ratings. Confirm RoHS compliance status and packaging options such as cut tape or reel availability directly with authorized distributors. Cross-reference datasheet revisions to ensure compatibility with design specifications before finalizing procurement orders.
Selection Notes
Select the S2055NRP when a 200 V blocking voltage and 55 A RMS current are required in a surface-mount form factor. Ensure the application does not exceed the 650 A surge limit. Compare against through-hole alternatives like the S2055MTP if higher thermal dissipation or mechanical robustness is needed. Verify that the gate drive circuit can supply at least 40 mA at 1.5 V for reliable triggering.
Part Context
The S2055NRP belongs to the Teccor Sxx55x series of standard phase control SCRs manufactured by Littelfuse. This series offers voltage capabilities up to 1000 V and is characterized by glass-passivated junctions. The component serves as a unidirectional switch optimized for industrial and consumer electronics requiring reliable AC power control in compact surface-mount designs.
Replacement Considerations
The S2055MTP is a pin-compatible through-hole alternative in the same series offering identical 200 V / 55 A ratings but in a TO-218 package. Other Sxx55x variants with different voltage ratings (e.g., S4055NRP for 400 V) share similar electrical characteristics but require voltage derating checks.
