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Product Detailed Parameters
- Description:40 AMP STANDARD SCR TO-263
- 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):15 mA
- Current - Hold (Ih) (Max):50 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:Surface Mount
- Package / Case:TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package:TO-263 (D2PAK)
- Voltage - On State (Vtm) (Max):1.7 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 Littelfuse SJ4040N2ATP is a Silicon Controlled Rectifier (SCR) from the SJxx20xx series, designed for high-temperature and high-reliability applications. 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 is qualified under AEC-Q101 standards. Key electrical parameters include a maximum holding current of 35 mA, a forward voltage drop of 1.6 V, and a gate trigger current of 10 mA at 1.5 V. It utilizes a TO-220-2 through-hole package.
Feature Summary
- AEC-Q101 automotive qualification ensures reliability in demanding environments.
- High junction temperature capability supports operation up to +150 °C.
- Through-hole TO-220-2 package facilitates robust mechanical mounting.
Applications
- Automotive power control circuits
- Industrial motor drives
- AC/DC power conversion systems
Procurement Notes
Verify the specific suffix 'N2ATP' against the manufacturer's official datasheet to confirm pinout orientation and packaging type. Ensure the procurement channel provides traceable documentation confirming AEC-Q101 compliance. Cross-reference the part number with Littelfuse's current product status to avoid obsolete components.
Selection Notes
Select this component when a 40 A SCR with 400 V blocking capability is required for automotive or industrial use. The low gate trigger current simplifies drive circuit design. Verify that the thermal management solution can handle the heat dissipation associated with a 1.6 V forward voltage drop at full load currents.
Part Context
This part belongs to the SJxx20xx family of thyristors, which are engineered for high-temperature performance. The SJ4040N2ATP shares the core electrical characteristics of the series but is distinguished by its specific package configuration and automotive-grade certification, differentiating it from standard industrial variants.
Replacement Considerations
Consult Littelfuse official substitution guides for verified equivalents. Generic SCRs with identical ratings may lack the required AEC-Q101 qualification or thermal endurance.
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