S1ALHRTG

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Silicon Controlled Rectifier (SCR) is a type of Diode-Rectifier; a four-layer semiconductor device. It is composed of one p-npn type Three-Layer Structure, so the conduction current is controlled by the control terminal voltage. SCR can maintain its control over the conduction current in both the forward and reverse direction. The advantage of this model is that it does not need the process of positive conduction and in turn has higher reliability and temperature resistance.

S1ALHRTG is an abbreviation of surface mount ultrafast high-voltage rectifier. It is a diodes-rectifiers-single model with a high-frequency category. This SCR is designed to meet an increasingly wide range of needs in both the aerospace and industrial markets with its self-leaded ceramic plate. This model offers the best dielectric strength, along with high surge capability, low thermal resistance and small packages.

The S1ALHRTG application field includes but is not limited to:

• Uninterruptible Power Supplies (UPS)
• Switched Mode Power Supplies (SMPS)
• Communication System
• Battery Chargers
• Lighting System

The working principle of the S1ALHRTG is based on two analog electrical components: the rectifier and the SCR. The rectifier is a component that rectifies AC energy into DC energy. It is composed of a diode bridge and a filter with a capacitor. The SCR is composed of two units: one is the Diode part that allows current to flow in one direction only and the other is the Transistor part that provides the control of conduction by voltage. When the trigger voltage is applied to the gate of the SCR, the diode part is turned on and the transistor part is turned off. As a result, the electric current flows freely.

In addition, the S1ALHRTG can operate in the blocking and holding mode. In the blocking mode, the current can be blocked when the voltage applied to the gate of the SCR is greater than the limit voltage. In the holding mode, the current can be maintained when the voltage applied to the gate is less than the limit voltage.

The S1ALHRTG is an efficient source of high voltage. It is widely used in many industries due to its superior performance, reliability and compact size. The device is versatile and dependable, and provides an effective means of controlling and regulating the flow of electricity.

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