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SJ4020NATP
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Product Detailed Parameters
- Description：HT SCR 400V 20A TO263 AECQ
- Series：SJ
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：600 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：35 mA
- Current - Hold (Ih) (Max)：75 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 Littelfuse SJ4020NATP is a Silicon Controlled Rectifier (SCR) from the SJxx20xx series, designed for high-power switching applications. 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 is housed in a TO-263AB-3 surface mount package. Key electrical parameters include a forward voltage (Vf) of 1.6 V, gate trigger voltage (Vgt) of 1.5 V, and gate trigger current (Igt) of 35 mA. It exhibits a maximum holding current (Ih) of 75 mA and supports non-repetitive on-state currents up to 300 A. The component is AEC-Q101 qualified.
Feature Summary
- AEC-Q101 automotive qualification ensures reliability under rigorous environmental and operational standards.
- High thermal performance capability with a maximum operating junction temperature of +150°C.
- Surface mount TO-263AB-3 packaging facilitates automated assembly and compact circuit board integration.
Applications
- Automotive power control systems requiring AEC-Q101 compliance
- AC phase control circuits for motor speed regulation
- Industrial power switching and rectification
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official datasheet to confirm exact electrical tolerances and packaging configurations. Confirm availability through authorized Littelfuse distributors, as lead times may vary based on production schedules. Ensure the procurement channel provides valid traceability documentation for automotive-grade components.
Selection Notes
Select this component when a 400 V blocking voltage and 20 A continuous current rating are required in a surface-mount form factor. Consider the 35 mA gate trigger current for driver compatibility. Evaluate thermal management requirements given the 150°C maximum operating temperature limit and the thermal resistance characteristics of the TO-263AB-3 package.
Part Context
The SJ4020NATP belongs to the SJxx20xx series of thyristors manufactured by Littelfuse. This series focuses on robust silicon-controlled rectifiers suitable for demanding power electronics environments. The part integrates standard SCR functionality with automotive-grade qualification, distinguishing it from general-purpose industrial SCRs.
Replacement Considerations
Consult Littelfuse official substitution guides for direct equivalents. Verify pinout compatibility and thermal characteristics when considering alternative manufacturers' SCRs with similar 400 V / 20 A ratings in TO-263 packages.
FAQ
What is the maximum non-repetitive on-state current for the SJ4020NATP?
The device supports a non-repetitive on-state current of 300 A.
Is the SJ4020NATP qualified for automotive applications?
Yes, the component is AEC-Q101 qualified, meeting automotive reliability standards.
What is the gate trigger current required to turn on the device?
The gate trigger current (Igt) is specified at 35 mA.
