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SJ4020N2RP
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Product Detailed Parameters
- Description：SCR 400V 20A TO263
- Series：SJ
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Voltage - Off State：600 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：10 mA
- Current - Hold (Ih) (Max)：35 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：225A, 300A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 150°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)：12.8 A
- Current - On State (It (RMS)) (Max)：20 A
- Current - Off State (Max)：10 µA
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Overview
The SJ4020N2RP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse, belonging to the SJxx20xx series. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (It RMS) of 20 A. The device operates within a temperature range of -40°C to +150°C and utilizes a D2PAK-2 surface-mount package. Key electrical parameters include a gate trigger voltage (Vgt) of 1.5 V, a gate trigger current (Igt) of 10 mA, and a maximum holding current (Ih) of 35 mA. The non-repetitive on-state peak current is specified at 300 A, with an off-state leakage current of 10 µA at VDRM.
Feature Summary
- High thermal stability supporting operation up to +150°C
- Surface-mount construction for automated PCB assembly
- Glass-passivated junctions for parameter stability
Applications
- AC power control circuits
- Phase control applications
- Industrial motor drives
Procurement Notes
Verify the specific Littelfuse datasheet for the SJ4020N2RP to confirm all electrical ratings and mechanical dimensions before integration. Ensure that the D2PAK-2 footprint matches the target PCB layout. Confirm compliance with relevant environmental directives such as REACH and SVHC requirements for the intended market.
Selection Notes
Select this component when a 400 V blocking capability and 20 A continuous current handling are required in a compact surface-mount form factor. Consider the 300 A surge capacity for transient protection needs. Evaluate the thermal management requirements for the D2PAK-2 package to ensure reliable operation within the specified -40°C to +150°C range.
Part Context
This SCR is part of Littelfuse's SJxx20xx family of thyristors designed for robust power switching. The series offers various voltage and current ratings to suit different power control demands. The SJ4020N2RP specifically addresses applications requiring moderate voltage blocking with high current capacity in a standardized SMD package.
Replacement Considerations
Consult Littelfuse documentation for direct cross-reference alternatives within the SJ series or comparable SCRs from other manufacturers. Verify pinout compatibility and thermal characteristics when substituting.
