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SJ4012N2RP
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Product Detailed Parameters
- Description：HIGH TJ 400V 12A SCR 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)：100A, 120A
- 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)：7.6 A
- Current - On State (It (RMS)) (Max)：12:00 AM
- Current - Off State (Max)：10 µA
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Overview
The SJ4012N2RP 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 12 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 110 A or 120 A depending on conditions, with an off-state leakage current of 10 uA at VDRM.
Feature Summary
- Surface mount construction in a D2PAK-2 package for automated PCB assembly
- High thermal stability supporting operation up to +150°C junction temperature
- Glass-passivated junctions for long-term parameter stability and reliability
Applications
- AC power control circuits
- Phase control applications
- General purpose switching
Procurement Notes
Verify the specific Littelfuse datasheet for the SJ4012N2RP to confirm exact electrical tolerances and mechanical dimensions before finalizing designs. Ensure compatibility with the D2PAK-2 footprint and check for any recent product change notices that may affect pinout or material composition. Confirm availability through authorized distributors as lead times can vary.
Selection Notes
Select this component when a 400V, 12A SCR is required in a surface-mount form factor. Compare against the SJ4020N2RP if higher current capacity (20A) is needed, or consider Triac alternatives like the Q4012NH5RP for bidirectional AC switching requirements. Verify gate drive capabilities match the 1.5V/10mA trigger specifications.
Part Context
This part belongs to the SJxx20xx series of SCRs from Littelfuse, designed for robust power control applications. It shares the same voltage rating and package style as other members like the SJ4020N2RP but differs in current handling capacity. The series is characterized by high reliability and suitability for industrial environments requiring SMD thyristors.
Replacement Considerations
Direct substitutes within the same family include the SJ4020N2RP for higher current needs. For bidirectional applications, the Q4012NH5RP Triac serves as a functional alternative in similar packages. Always verify pinout compatibility and thermal characteristics when cross-referencing.
