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SX040K
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Product Detailed Parameters
- Description：SCR 600V 4A DPAK
- Series：-
- Mfr：SMC Diode Solutions
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Off State：600 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)：30A @ 50Hz
- SCR Type：Sensitive Gate
- Operating Temperature：-40°C ~ 110°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：DPAK
- Voltage - On State (Vtm) (Max)：1.5 V
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：4:00 AM
- Current - Off State (Max)：5 µA
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Overview
The SX040K is a Silicon Controlled Rectifier (SCR) manufactured by SMC Diode Solutions, designed for surface-mount applications in the DPAK package. It features a 600 V off-state voltage rating and supports a maximum RMS on-state current of 4 A. The device is characterized as gate-sensitive, with a maximum gate trigger voltage of 800 mV and a maximum gate trigger current of 200 µA. Key electrical parameters include a maximum on-state voltage of 1.5 V, a holding current of 6 mA, and a non-repetitive peak forward current of 30 A at 50 Hz.
Feature Summary
- Surface-mount construction in a DPAK package for optimized board space utilization
- Gate-sensitive design enabling low-power triggering requirements
- Glass passivated junction for enhanced reliability and stability
Applications
- General purpose switching circuits
- Power control systems requiring surface-mount SCR solutions
- Industrial equipment utilizing low-power gate drive interfaces
Procurement Notes
Verify the specific ordering suffix to ensure the correct packaging format, such as tape and reel or cut tape, matches production requirements. Confirm that the component status remains active with the manufacturer before finalizing procurement plans. Cross-reference the manufacturer part number SX040K with official datasheets to validate all electrical ratings against the intended circuit design specifications.
Selection Notes
Select this component when a surface-mount SCR with a 600 V blocking capability and 4 A continuous current handling is required. The gate-sensitive characteristic makes it suitable for applications where minimal gate drive power is available. Ensure the thermal management strategy accommodates the DPAK package constraints and the specified operating temperature range of -40°C to 125°C.
Part Context
The SX040K belongs to the family of discrete thyristor products offered by SMC Diode Solutions. It serves as a solid-state switch alternative to through-hole SCRs, facilitating automated assembly processes. The DPAK form factor provides a compact footprint compared to traditional axial or radial leaded packages, supporting modern high-density electronic designs.
Replacement Considerations
Direct substitutes must match the 600 V rating, 4 A current capacity, and DPAK package. Verify compatibility of gate sensitivity and holding current characteristics. Consult manufacturer cross-reference lists for verified equivalent part numbers from SMC Diode Solutions or other qualified suppliers.
