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SK012NRP
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Product Detailed Parameters
- Description：SCR 1KV 12A TO263
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Voltage - Off State：1 kV
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：20 mA
- Current - Hold (Ih) (Max)：40 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：120A, 130A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C (TJ)
- Grade：-
- Qualification：-
- 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)：1.6 V
- Current - On State (It (AV)) (Max)：7.6 A
- Current - On State (It (RMS)) (Max)：12:00 AM
- Current - Off State (Max)：20 µA
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Overview
The Littelfuse SK012NRP is a silicon-controlled rectifier (SCR) manufactured by Littelfuse Inc. It features a standard recovery type with a maximum repetitive peak off-state voltage of 1 kV and an on-state RMS current rating of 12 A. The device is housed in a TO-220AB through-hole package, suitable for panel or chassis mounting. Key electrical parameters include a maximum average on-state current of 7.6 A, a holding current of 40 mA, and a non-repetitive peak surge current of 100 A at 50 Hz. The gate trigger voltage is limited to 1.5 V maximum, while the on-state voltage drop reaches 1.6 V maximum. Operating junction temperature ranges from -40°C to 125°C.
Feature Summary
- Standard recovery characteristics for general-purpose AC phase control applications
- Robust TO-220AB leaded package designed for high thermal dissipation and mechanical stability
- High surge current capability to withstand transient overloads during startup or fault conditions
Applications
- AC motor speed control circuits
- Solid-state relay switching modules
- Industrial power regulation systems
Procurement Notes
Verify the specific suffix 'NRP' against the manufacturer's official datasheet to confirm exact packaging configuration and compliance status. Ensure that the ordering information matches the required voltage and current ratings for the target circuit design before finalizing procurement.
Selection Notes
Select this component when a 1 kV blocking voltage and 12 A RMS current capacity are required in a through-hole form factor. Consider the 1.6 V on-state voltage drop for thermal management calculations and ensure the gate drive circuit can supply the necessary trigger current within the specified limits.
Part Context
This SCR belongs to the broader family of Littelfuse thyristor devices designed for power switching. The TO-220AB package provides a standardized footprint for heat sinking, facilitating integration into larger power electronics assemblies where reliable conduction and blocking performance are critical.
Replacement Considerations
Consult official substitution guides for equivalent SCRs with matching 1 kV/12 A ratings in TO-220 packages. Verify pinout compatibility and thermal resistance values before replacing the original component in existing designs.
