C46D

Series:	--
Packaging:	--
Part Status:	Active
Current - Non Rep. Surge 50, 60Hz (Itsm):	--
SCR Type:	Standard Recovery
Operating Temperature:	--
Mounting Type:	--
Package / Case:	--
Supplier Device Package:	--

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Introduction

Thyristors - SCRs are semiconductor components which are composed of four layers of silicon and can control large currents when they are triggered. The Silicon Controlled Rectifier (SCR, or C46D thyristor) is a device that is commonly used in power control and circuit protection applications in which controlled and reliable switching is required. Due to its ability to switch large currents, the C46D SCR is often used in high voltage applications such as in controlling the flow of electrical energy in an electric motor or in circuit protection.

Application Fields

The C46D SCR has a variety of applications, including industrial motor control, semiconductor protection, and general power control. It is often used in the industrial motor control field because of its ability to switch high currents and currents that change suddenly from zero to large values. This is especially useful in applications such as cranes, elevators, escalators, machine tools, and conveyor belts. Additionally, the quick switching ability of this component makes it useful for semiconductor protection to prevent current surges from damaging electrical components. The C46D SCR can also be used for general power control for a variety of other industrial and domestic applications.

Working Principle

The C46D SCR is a component that can switch high current. It works by controlling the flow of current through a silicon junction or gate area. When a voltage is applied to the anode, electrons are attracted towards the anode and begin to accumulate on the gate area. When the voltage reaches a certain level, called the breakdown voltage, the electrons can tunnel through the gate and the SCR will be triggered. Once the SCR is triggered, the current that the SCR can bear is called the peak holding current, usually much higher than the current that the SCR can bear when the SCR is untriggered. As current passes through a SCR, the voltage drop associated with it remains fairly constant.

Conclusion

The C46D SCR is a very useful component in a variety of applications and fields. Its ability to quickly switch high currents and to control high voltage makes it ideal for industrial motor control, semiconductor protection, and general power control. Additionally, the constant voltage drop associated with current passing through a SCR makes it useful for controlling power supply to a variety of other electrical components.

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