CS218-35D

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Voltage - Off State:	400V
Voltage - Gate Trigger (Vgt) (Max):	1.5V
Current - Gate Trigger (Igt) (Max):	50mA
Voltage - On State (Vtm) (Max):	2.2V
Current - On State (It (RMS)) (Max):	35A
Current - Hold (Ih) (Max):	75mA
Current - Off State (Max):	20µA
Current - Non Rep. Surge 50, 60Hz (Itsm):	400A @ 100Hz
SCR Type:	Standard Recovery
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	TO-218-3
Supplier Device Package:	TO-218

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Thyristors - SCRs

Thyristors are a class of electrical components that can control the electron flow in a circuit. They are available in different types including SCRs, or silicon-controlled rectifiers. SCRs have a wide range of applications and are used in fields such as power supplies, switchgear, and linear motor drives. The CS218-35D is an SCR device designed for controlling rectified current in applications where higher power is needed.

CS218-35D Application Field

The CS218-35D is designed to control direct current in systems that require higher current ratings. One of the most typical applications of the CS218-35D is in power supplies. These power supplies usually use current controlled rectified power supply circuitry with high efficiency and reliability requirements. The CS218-35D can also be used in rectifiers, front-end bridges, cryogenic chillers, elevator brakes, and other related applications. Additionally, CS218-35D has also been used in EMC test automation and maintenance, electronic medical equipment, and air conditioning units.

CS218-35D Working Principle

The CS218-35D device is an SCR (silicon controlled rectifier) that can control the current in a circuit by turning it on and off. It is composed of a silicon path that can be triggered by applying a pulse of electric current to the gate of the device. Once this current reaches the threshold voltage, the silicon path conducts current, allowing the device to control the current flow in the circuit. The device will remain in a conducting state as long as the control current is applied.The device is triggered by the gate current, and the current must exceed the holding current of the device. When the current falls below the holding current, the device turns off. The device also has a reverse voltage protection feature which prevents too high of a voltage from negatively impacting the device. This allows the device to work in a wide range of applications.

Conclusion

The CS218-35D is an SCR (silicon-controlled rectifier) device designed for controlling rectified current in applications where higher power is needed. Its primary applications are in power supplies, rectifiers, front-end bridges, cryogenic chillers, elevator brakes, and more. The device has a reverse voltage protection feature that allows it to work in a wide range of applications. The device is triggered by a gate current, which must exceed the holding current of the device. The device is also able to turn off once the current falls below the holding current.

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