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CS220-25B
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Product Detailed Parameters
- Description：SCR 200V 25A TO220
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Voltage - Off State：200 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：30 mA
- Current - Hold (Ih) (Max)：50 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-220-3
- Supplier Device Package：TO-220-3
- Voltage - On State (Vtm) (Max)：1.8 V
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：25 A
- Current - Off State (Max)：-
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Overview
The CS220-25B is a Silicon Controlled Rectifier from the Central Semiconductor CS220 series, housed in a TO-220 package. It features a peak repetitive off-state voltage of 200 V and an RMS on-state current rating of 25 A at 90°C case temperature. The device supports a peak one-cycle surge current of 250 A and has a critical rate of rise of on-state current (di/dt) of 100 A/μs. Operating junction temperature ranges from -40 to +125 °C, with thermal resistance values of 60 °C/W (junction-to-ambient) and 1.3 °C/W (junction-to-case).
Feature Summary
- Epoxy molded construction designed for sensing circuit and control system applications.
- Single element configuration with isolated flange mount capability.
- High surge current handling capacity suitable for demanding power switching environments.
Applications
- Sensing circuit applications
- Control system applications
Procurement Notes
This component is classified as End of Life (EOL) by Central Semiconductor Corp. No replacement part number is currently available within the manufacturer's lineup. Procurement should focus on verifying final stock availability through authorized distributors or exploring alternative sourcing channels, as production has ceased.
Selection Notes
Selection requires matching the 200 V voltage rating and 25 A current capacity to the specific load requirements. Designers must account for the TO-220 thermal characteristics, ensuring adequate heat sinking to maintain junction temperatures within the specified operating range during continuous conduction.
Part Context
The CS220-25B belongs to the broader CS220 series of Silicon Controlled Rectifiers manufactured by Central Semiconductor Corp. This series encompasses various voltage ratings ranging from 200 V to 800 V, all sharing similar mechanical outlines and general electrical performance profiles tailored for industrial control uses.
Replacement Considerations
No direct replacement part number is listed by Central Semiconductor for the CS220-25B. Engineers seeking alternatives must evaluate third-party SCRs with equivalent 25 A RMS current and 200 V blocking voltage specifications in compatible TO-220 packages.
FAQ
What is the maximum RMS on-state current for the CS220-25B?
The maximum RMS on-state current is 25 A when measured at a case temperature of 90°C.
Is the CS220-25B still in active production?
No, the CS220-25B is discontinued and classified as End of Life (EOL) by Central Semiconductor Corp.
What is the thermal resistance from junction to case for this device?
The thermal resistance from junction to case (ΘJC) is 1.3 °C/W.
