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Product Detailed Parameters
- Description:HT SEN SCR 400V 4A 200A TO252
- Series:SJxx04xSx
- Mfr:Littelfuse Inc.
- Package:Tape & Reel (TR)
- Voltage - Off State:400 V
- Voltage - Gate Trigger (Vgt) (Max):800 mV
- Current - Gate Trigger (Igt) (Max):200 µA
- Current - Hold (Ih) (Max):6 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):25A, 30A
- SCR Type:Sensitive Gate
- Operating Temperature:-40°C ~ 150°C (TJ)
- Grade:-
- Qualification:-
- Mounting Type:Surface Mount
- Package / Case:TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package:TO-252 (DPAK)
- Voltage - On State (Vtm) (Max):1.6 V
- Current - On State (It (AV)) (Max):2.56 A
- Current - On State (It (RMS)) (Max):4:00 AM
- Current - Off State (Max):5 µA
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Overview
The SJ4004DS2RP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse, belonging to the Sxx04xSx series. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (It RMS) of 4 A. The device has a maximum holding current (Ih) of 6 mA and a non-repetitive peak on-state current of 30 A. Gate triggering parameters include a maximum gate peak reverse voltage of 6 V, a gate trigger voltage (Vgt) of 800 mV, and a gate trigger current (Igt) of 200 uA. The forward voltage (Vf) is 1.6 V, with a maximum off-state leakage current of 2 uA at VDRM. It operates within a temperature range of -40 C to +110 C and is housed in a DPAK-2 (TO-252-2) surface-mount package.
Feature Summary
- Sensitive gate structure enabling low power control via minimal gate trigger current.
- Robust thermal performance supporting operation up to +110 C junction temperature.
- High surge current capability providing protection against transient overcurrent events.
Applications
- Solid state relays
- Industrial motor controls
- Power supply circuits
Procurement Notes
Verify the specific ordering suffix to ensure the correct packaging configuration matches the assembly requirements. Confirm RoHS compliance status through the official datasheet before integration. Cross-reference the manufacturer part number with distributor catalogs to validate authenticity and traceability. Ensure the selected variant meets all environmental and regulatory standards for the target deployment region.
Selection Notes
Select this component when a 400 V blocking voltage and 4 A continuous current rating are required in a compact surface-mount form factor. The sensitive gate characteristic makes it suitable for applications demanding low drive power from control logic. Evaluate the thermal management needs relative to the DPAK-2 package's heat dissipation capabilities under expected load conditions.
Part Context
This SCR belongs to Littelfuse's Sxx04xSx family, designed for general-purpose power switching. The series offers a balance of high voltage handling and moderate current capacity in standard surface-mount packages. These devices are engineered for reliability in industrial and consumer electronics environments requiring robust thyristor-based control solutions.
Replacement Considerations
Direct substitutes may include other 400V 4A SCRs in TO-252 packages from manufacturers like STMicroelectronics or Vishay. Verify pinout compatibility and electrical parameter margins before substitution. Consult Littelfuse application notes for recommended equivalent parts within the same product line.
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