JAN2N2323S

Thyristors - SCRs

A Silicon Controlled Rectifier (SCR) is a three terminal semiconductor device typically used for controlling electric power in a wide range of applications. It acts as a switch by controlling the flow of current in an external circuit. Some of the common applications for SCRs are power control, motor control and light control systems. The SCR is usually represented by the symbol in Figure 1.

The SCR is a solid-state device which is well suited to both dissipative and non-dissipative control circuit applications. It can be fully controlled by a small signal voltage applied at its gate terminal. The principle of operation of the SCR is based on the ability of an electric current to control a current in a reverse direction.

The SCR consists of two PN junctions in series with their opposite ends connected to the anode and cathode terminals. The gate terminal is connected to the middle point between the two junctions. When a positive voltage is applied to the gate terminal, a small amount of current flows through the gate. This small current is enough to turn on the SCR and allow a large current to flow from the anode to the cathode.

When the gate voltage is switched off, the SCR stops and no current flows through the device. This is because the current required to keep the SCR turned on is not available. Thus, the SCR can easily be turned on and off by varying the gating signal. The voltage and current ratings of the SCR play important roles in selecting a suitable SCR for a specific application.

The JAN2N2323S SCR is a very popular, small signal signaling device designed to be used in low power switching applications. It is a two-terminal thyristor with a gate-controlled structure. The device\'s cathode and anode are connected to a common lead. Its characteristics are very similar to those of a conventional dual thyristor, except for its relatively small operating voltage of 5V.

The JAN2N2323S SCR can be used for a wide range of switching applications, such as lighting, instrumentation, and electronic control applications, as well as for controlling power to small motors and consumer appliances, among others.

The JAN2N2323S SCR is a low power, low cost device and is very popular in the consumer electronics industry. Its small size makes it easy to use in confined spaces. Its high voltage tolerance capability allows it to be used in high power switching applications, such as motor control. The device\'s low threshold voltage makes it suitable for low power applications.

In summary, the JAN2N2323S SCR is a small signal, three terminal semiconductor device that is ideal for a variety of low power switching applications. Thanks to its small size, high voltage tolerance, and low threshold voltage, it is widely used in consumer electronics, instrumentation, motor control, and other low power switching applications.