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SJ4025NRP
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Product Detailed Parameters
- Description：HIGH TJ 400V 25A SCR TO263
- Series：SJ
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR)
- Voltage - Off State：600 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：35 mA
- Current - Hold (Ih) (Max)：75 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：300A, 350A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- 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)：1.6 V
- Current - On State (It (AV)) (Max)：16 A
- Current - On State (It (RMS)) (Max)：25 A
- Current - Off State (Max)：10 µA
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Overview
The Littelfuse SJ4025NRP is a Silicon Controlled Rectifier (SCR) designed for surface-mount applications. It features a rated repetitive off-state voltage of 400 V and an on-state RMS current of 25 A. The device operates within a temperature range of -40 °C to +150 °C, utilizing a D2PAK-2 package. Key electrical characteristics include a maximum holding current of 75 mA, a gate trigger voltage of 1.5 V, and a gate trigger current of 35 mA. Non-repetitive peak on-state current reaches 300 A, with an off-state leakage current of 10 uA at VDRM.
Feature Summary
- High-temperature operation capability up to 150 °C
- Surface-mount design in a compact D2PAK-2 package
- Robust surge current handling with 300 A non-repetitive peak
Applications
- Industrial motor control systems
- Solid-state relays
- Power supply circuits
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and variant selection. Confirm RoHS compliance status and REACH SVHC declarations prior to integration. Cross-reference the part number with Littelfuse documentation to validate availability and lead times through authorized distribution channels.
Selection Notes
Select this component when high thermal performance is required alongside surface-mount constraints. The 25 A RMS rating suits moderate power switching tasks. Ensure the gate drive circuit can supply at least 35 mA at 1.5 V. Verify that the 400 V blocking voltage aligns with the system's peak line voltages and transient requirements.
Part Context
This SCR belongs to the SJxx20xx/SJxx25xx series from Littelfuse, specialized for high-temperature environments. Unlike standard thyristors limited to 125 °C, this model supports junction temperatures up to 150 °C. It complements other SMD thyristors by offering higher thermal resilience in a similar footprint, suitable for dense PCB layouts.
Replacement Considerations
Direct replacements must match the 400V/25A rating and D2PAK-2 package. Consider SJ4020NRP for lower current needs or SJ4025N1ATP if AEC-Q101 automotive qualification is required. Verify pinout compatibility and thermal resistance specifications before substitution.
