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SJ4040RATP
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Product Detailed Parameters
- Description：40 AMP STANDARD SCR TO-220 NON-I
- Series：SJxx40xxA
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：400 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)：430A, 520A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220AB
- Voltage - On State (Vtm) (Max)：1.7 V
- Current - On State (It (AV)) (Max)：25 A
- Current - On State (It (RMS)) (Max)：40 A
- Current - Off State (Max)：10 µA
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Overview
The SJ4040RATP 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 40 A. The device operates within a temperature range of -40°C to +150°C and utilizes a TO-220-2 through-hole package. Key electrical parameters include a forward voltage of 1.6 V, gate trigger voltage of 1.5 V, and gate trigger current of 35 mA. It holds AEC-Q101 qualification and exhibits a non-repetitive on-state current capacity of 300 A.
Feature Summary
- AEC-Q101 qualified for automotive reliability standards
- High junction temperature capability up to 150°C
- Electrically isolated TO-220-2 through-hole mounting
Applications
- Automotive power control circuits
- Industrial AC switching applications
- Motor speed control systems
Procurement Notes
Verify the specific part number SJ4040RATP against official Littelfuse documentation to confirm availability and exact specifications. Ensure that any ordering suffixes or variations do not alter the functional characteristics or package type required for your design. Cross-reference with authorized distributors to validate authenticity and supply chain integrity before finalizing procurement decisions.
Selection Notes
Select this component when a 400 V, 40 A SCR with high thermal tolerance is required. The TO-220-2 package facilitates efficient heat dissipation for through-hole implementations. Consider the 150°C maximum operating temperature for environments exceeding standard industrial limits. Verify gate drive requirements align with the specified 1.5 V trigger voltage and 35 mA current threshold for reliable switching performance.
Part Context
This device is part of Littelfuse's Thyristors category under the SCRs product line. It belongs to the SJxx20xx series, which typically offers robust performance for general-purpose and specialized switching applications. The component is designed to provide reliable operation in demanding electrical environments, leveraging Littelfuse's semiconductor expertise for durability and consistent parameter stability.
Replacement Considerations
Consult Littelfuse datasheets for direct equivalents within the SJ series. Verify pinout compatibility and thermal resistance values when substituting with other manufacturers' SCRs. Ensure replacement parts meet the same AEC-Q101 qualification if automotive usage is intended.
