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SJ4012L1TP
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Product Detailed Parameters
- Description：HIGH TJ 400V 12A SCR TO220L
- 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)：6 mA
- Current - Hold (Ih) (Max)：15 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：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)：7.6 A
- Current - On State (It (RMS)) (Max)：12:00 AM
- Current - Off State (Max)：10 µA
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Overview
The Littelfuse SJ4012L1TP is a Silicon Controlled Rectifier (SCR) belonging to the SJxx12xx series, designed for high-temperature environments. It features a rated repetitive off-state voltage of 400 V and an on-state RMS current of 12 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 characteristics include a forward voltage of 1.6 V, a gate trigger voltage of 1.5 V, and a gate trigger current of 10 mA. The non-repetitive peak on-state current is specified at 175 A, with a maximum holding current of 35 mA.
Feature Summary
- High-temperature capability up to 150°C
- Through-hole mounting in a TO-220-2 package
- Low forward voltage drop for efficiency
Applications
- Industrial power control systems
- Motor drive circuits
- General purpose rectification
Procurement Notes
Verify the specific suffix L1TP against official Littelfuse documentation to confirm pinout and thermal specifications. Ensure the ordering quantity aligns with manufacturer factory pack sizes, typically 1000 units per tube. Confirm RoHS compliance status directly from the datasheet before finalizing procurement.
Selection Notes
Select this component when a 400V blocking voltage and 12A continuous current are required in a standard TO-220-2 package. Compare gate trigger requirements against the driving circuit capabilities, as the 10 mA Igt must be supported by the control logic. Consider thermal management solutions suitable for operation up to 150°C junction temperature.
Part Context
This SCR is part of the SJxx12xx family, which shares common packaging and basic electrical profiles but varies primarily in current ratings. It serves as a robust solid-state switch alternative to mechanical relays in applications requiring reliable switching under moderate load conditions.
Replacement Considerations
Consult Littelfuse official substitution guides for verified equivalents. Cross-reference parameters such as VDRM, IT(RMS), and package dimensions to ensure compatibility with existing PCB layouts and thermal constraints.
