CD631215B

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Thyristors - SCRs - Modules

CD631215B is a silicon-controlled rectifier (SCR), which is a type of four-layer thyristor device. SCRs, formed from four semiconductor layers, are used for switching loads, controlling motor speed, voltage regulation, rectification, and as a phase angle controller. CD631215B is a 600V, high current thyristor module with low noise, low leakage current, and high surge capability.

Application Field

CD631215B is suitable for employment in a range of applications, including:

• Power conversion
• Motor control
• Switch control
• Power control
• Temperature and furnace control

Working Principle

The CD631215B SCR is a bidirectional device with an anode and cathode connection. In order to trigger the SCR, a small current must be applied to the gate connection. The current must be enough to cause the junction between the gate and the cathode to break down, allowing the current to flow from the gate to the cathode. This current avalanche is called a "forward gate current".

Once this process has occurred, the device\'s gate is at a higher voltage than the cathode, allowing the current to flow from the anode to the cathode. The current through the device rises rapidly until it reaches its "holding current" level.

The CD631215B SCR has a number of characteristics that make it suitable for a wide range of applications.

• Its low on-state voltage drop and low on-state voltage rise times make it ideal for applications that require high speed switching.
• It has high surge capability, making it suitable for applications with large inrush currents.
• It has low leakage current and is capable of handling high voltages while maintaining low losses.
• It has high dV/dt ratings, making it suitable for applications with high dv/dt.

The CD631215B SCR is used in applications such as power switching, motor control, switch control, and power control. Its versatility makes it suitable for a wide range of applications, from high-frequency switching for motor control to low noise switching for power control.

The CD631215B SCR is a reliable and robust device, making it ideal for use in a variety of applications where fast switching, low voltage drops, and high surge capability are required.

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