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SJ4032L2ATP
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Product Detailed Parameters
- Description：32 AMP STANDARD SCR TO-220 ISO
- Series：SJxx32xxA
- Mfr：Littelfuse Inc.
- Package：Tube
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：15 mA
- Current - Hold (Ih) (Max)：50 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：320A, 380A
- 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 Full Pack, Isolated Tab
- Supplier Device Package：ITO-220AB
- Voltage - On State (Vtm) (Max)：1.6 V
- Current - On State (It (AV)) (Max)：20 A
- Current - On State (It (RMS)) (Max)：32 A
- Current - Off State (Max)：10 µA
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Overview
The Littelfuse SJ4032L2ATP is a high-temperature Silicon Controlled Rectifier (SCR) designed for robust power control applications. It features a rated repetitive off-state voltage of 400 V and an RMS on-state current capability of 32 A. The device utilizes a TO-263 package, suitable for surface-mount or insulated mounting configurations. Key electrical parameters include a forward voltage of approximately 1.6 V at rated current, a gate trigger voltage of 1.5 V, and a gate trigger current of 10 mA. The component operates within a junction temperature range of -40°C to +150°C and holds AEC-Q101 qualification for automotive reliability standards.
Feature Summary
- High thermal stability with operation up to +150°C junction temperature
- AEC-Q101 qualified for automotive-grade reliability requirements
- Robust surge current handling capability for inductive load switching
Applications
- Automotive ignition systems and coil drivers
- Industrial motor control circuits
- Solid-state relay outputs
- High-temperature power conversion modules
Procurement Notes
Verify the specific suffix 'L2' against the official Littelfuse datasheet to confirm pinout and thermal pad configuration. Ensure the ordering quantity aligns with manufacturer minimums. Request the latest revision data sheet to validate RoHS compliance and packaging details before finalizing procurement orders.
Selection Notes
Select this component when a 400V, 32A SCR is required in a compact TO-263 form factor. Confirm that the application's peak repetitive current does not exceed the non-repetitive surge rating. Verify that the gate drive circuit can supply the specified 10 mA trigger current reliably across the full operating temperature range.
Part Context
This part belongs to the Littelfuse SJxx20xx series of high-temperature SCRs. It shares family characteristics such as NPT technology and high dv/dt ratings but differs from other series members by its specific 32A current rating and TO-263 package style. It complements lower-current variants like the SJ4020L2ATP for higher power density designs.
Replacement Considerations
Direct replacements must match the 400V/32A rating and TO-263 package. Verify pin compatibility if substituting with similar Littelfuse parts like the SJ4032N2ATP-X. Cross-reference thermal resistance values to ensure adequate heat sinking for the new component.
