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CS202-4D-2
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Product Detailed Parameters
- Description：SCR 400V 4A TO202
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Voltage - Off State：400 V
- Voltage - Gate Trigger (Vgt) (Max)：800 mV
- Current - Gate Trigger (Igt) (Max)：200 µA
- Current - Hold (Ih) (Max)：2 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：-
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-202 Long Tab
- Supplier Device Package：TO-202
- Voltage - On State (Vtm) (Max)：1.8 V
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：4:00 AM
- Current - Off State (Max)：-
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Overview
The Central Semiconductor Corp CS202-4D-2 is a silicon controlled rectifier (SCR) in the TO-202-2 package. It features a peak repetitive off-state voltage of 400 V and an RMS on-state current of 4.0 A at 85°C. The device supports a peak one-cycle surge current of 30 A with an I²t value of 4.5 A²s for fusing. Key electrical characteristics include a gate trigger current of 20 to 200 μA, holding current of 0.25 to 2.0 mA, and a critical rate of rise of on-state current of 50 A/μs. Thermal resistance values are 7.5 °C/W junction-to-case and 80 °C/W junction-to-ambient.
Feature Summary
- Epoxy molded silicon controlled rectifier designed for sensing circuit applications and control systems
- Four-terminal thyristor structure with cathode, anode, and gate terminals in a TO-202-2 case
- Capable of handling high surge currents and rapid current rise rates for robust switching performance
Applications
- Sensing circuit applications
- Control systems requiring solid-state switching
Procurement Notes
This component has been officially classified as End of Life by Central Semiconductor Corp. No replacement part number is available from the manufacturer. Last purchase orders must be placed within six months of the notice date, with final shipments occurring within twelve months. Verification of stock availability through authorized distributors is required before design commitment.
Selection Notes
Select this SCR based on its 400 V blocking capability and 4.0 A continuous current rating. Ensure the application environment maintains the junction temperature between -40°C and +125°C. Verify that the gate drive circuit can supply the specified peak gate current of 1.2 A and power dissipation limits. Consider thermal management strategies given the 80 °C/W junction-to-ambient resistance.
Part Context
The CS202-4D-2 belongs to the CS202 series of 4.0 Amp SCRs offered by Central Semiconductor Corp. This series includes variants with different voltage ratings: 200 V (CS202-4B-2), 600 V (CS202-4M-2), and 800 V (CS202-4N-2). All share the same physical TO-202-2 package and current handling capabilities, differing primarily in their peak repetitive off-state voltage specifications.
Replacement Considerations
No direct replacement part number is provided by Central Semiconductor Corp for the CS202-4D-2. Engineers should consult the manufacturer's engineering team for potential alternate sources or custom solutions.
