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SJ4032RATP
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Product Detailed Parameters
- Description：32 AMP STANDARD SCR TO-220 NON-I
- 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)：40 mA
- Current - Hold (Ih) (Max)：60 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
- Supplier Device Package：TO-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 SJ4032RATP is a Silicon Controlled Rectifier (SCR) designed for high-temperature environments. It features a TO-220AB package with two leads and supports through-hole mounting. The device has a rated repetitive peak off-state voltage of 400 V and an on-state RMS current rating of 32 A. Key electrical parameters include a maximum holding current of 75 mA, a non-repetitive peak on-state current of 480 A, and a forward voltage drop of 1.6 V at rated current. It operates within a junction temperature range of -40°C to +150°C.
Feature Summary
- High-temperature capability with a maximum operating junction temperature of +150°C
- Robust surge current handling with a non-repetitive peak on-state current of 480 A
- Standardized TO-220AB through-hole packaging for easy integration
Applications
- Industrial motor control systems
- Solid-state relays
- Power supply circuits requiring high thermal stability
Procurement Notes
Verify the specific datasheet revision and ordering suffixes when sourcing. Confirm that the TO-220AB package dimensions match the target PCB footprint. Ensure the gate trigger characteristics align with the driving circuit requirements before finalizing procurement.
Selection Notes
Select this component when a 400V SCR with 32A continuous current capacity is required in a TO-220 package. Consider the 150°C junction temperature limit for thermal management design. Verify that the 480A surge rating meets the application's transient current demands.
Part Context
This part belongs to the Littelfuse SJ series of high-temperature SCRs. The series offers various current ratings and voltage options in standard packages like TO-220AB and TO-263. These devices are engineered for reliability in demanding industrial and automotive applications where elevated temperatures are common.
Replacement Considerations
Check for direct pin-compatible alternatives within the same SJ series, such as SJ4020RATP or SJ4040RATP, if current ratings differ. Verify that any substitute maintains the 150°C junction temperature rating and TO-220AB package style.
