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S4025NRP
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Product Detailed Parameters
- Description：SCR 400V 25A DDPAK
- Series：-
- Mfr：Littelfuse Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：35 mA
- Current - Hold (Ih) (Max)：50 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：300A, 350A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：DDPAK/TO-263-3
- 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 S4025NRP is a Silicon-Controlled Rectifier (SCR) from the Teccor Sxx25x series, designed for surface mount applications in the SMTO-263-2 package. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (It RMS) of 25 A. The device has a maximum breakover current (IBO) of 350 A and a non-repetitive on-state peak current of 350 A. Key electrical parameters include a forward voltage (Vf) of 1.6 V, gate trigger voltage (Vgt) of 1.5 V, and gate trigger current (Igt) of 35 mA. The holding current (Ih) maximum is 50 mA, with an off-state leakage current of 10 uA at VDRM. It operates within a temperature range of -40 C to +125 C.
Feature Summary
- Sensitive gate design allows direct interfacing with microprocessors using minimal gate current.
- Glass passivated junctions ensure durability and reliability under various operating conditions.
- Compatible with lead-free reflow soldering processes for modern surface mount assembly.
Applications
- Strobe lights
- Fluid level sensors
- Capacitive-discharge ignition systems
Procurement Notes
Verify the specific ordering suffix and RoHS compliance status directly with Littelfuse or authorized distributors before procurement. Confirm that the SMTO-263-2 package matches your PCB footprint requirements. Ensure the 400V rating and 25A current capacity align with your circuit's peak and RMS demands. Check for any recent Product Change Notifications (PCNs) that might affect material composition or manufacturing location.
Selection Notes
Select the S4025NRP when a 400V blocking voltage and 25A RMS current are required in a compact surface mount form factor. Compare its 35 mA gate trigger current against other SCRs if low-power control signals are used. Consider the 1.6 V forward voltage drop for thermal management calculations. Ensure the -40 C to +125 C operating range suits your environmental conditions. Verify that the SMTO-263-2 package is suitable for your automated assembly line.
Part Context
The S4025NRP belongs to the Littelfuse Teccor Sxx25x series of silicon-controlled rectifiers. This series offers various voltage ratings while maintaining consistent current handling capabilities. The NRP suffix typically indicates a tape-and-reel packaging format for surface mount technology. It is part of Littelfuse's broader portfolio of thyristors designed for efficient switching in low-current circuits.
Replacement Considerations
Direct replacements may include other Littelfuse SCRs with identical 400V/25A ratings in SMTO-263-2 packages, such as variants from the same Sxx25x family. Cross-brand equivalents must match the 25A RMS current, 400V VDRM, and sensitive gate characteristics. Verify pinout compatibility and thermal resistance values before substitution.
