D400N22BVFXPSA1

D400N22BVFXPSA1: Overview of Application Field and Working Principle

The D400N22BVFXPSA1 is a single rectifier diode from the D400 series of semiconductor switching devices manufactured by Vishay Intertechnology. This diode is unidirectional, having a forward voltage drop of 6.4 V at 1 A and an operating temperature ranging from -55°C to 175°C. Its maximum non-repetitive surge peak reverse voltage is 400 V and reverse breakdown voltage is 200 V. It is extremely robust and suitable for use in industrial, commercial and household applications, making it ideal for a broad range of electronics.

Applications

The D400N22BVFXPSA1 is suitable for a range of applications, from Telecommunications (telephone switching and signaling systems), to consumer electronics (televisions, radios, set-top boxes), to power supplies for computer-based equipment such as servers, notebooks, and desktop computers. It can be used to replace traditional silicon-controlled rectifiers (SCRs) or thyristors in application fields that require extremely robust operation.

In consumer and automotive markets, the D400N22BVFXPSA1 is often used in the protection circuits of television sets, household lighting, or motor vehicle electrical systems, where it allows for switching correction or current rectification. It is also commonly used in rectifying AC power to DC.

Working Principle

Rectifier diodes such as the D400N22BVFXPSA1 are based on heavily doped PN-junction technology. The diode consists of a semiconductor material with both N-type and P-type regions. While current flows in one direction through a pn-junction, it is blocked in the other direction. Therefore, the D400N22BVFXPSA1 diode only allows for current to move in a single direction, from its anode to its cathode. This property is known as rectification, as it rectifies alternating current (AC), converting it to direct current (DC).

When a forward voltage is applied to the diode, a small barrier potential is set up across the pn-junction. This potential, called the barrier voltage, is generally between 0.1 V and 6.4 V. The barrier potential decreases with the increase in forward current, allowing more current to flow through the diode at a given voltage - a process called forward conduction.

The reverse voltage of the diode determines when the PN-junction will appear to be a conducting path in an opposite direction. The reverse voltage is typically between -5 V and -200 V. When the applied reverse voltage is greater than this threshold value, then the barrier potential will not longer exist and the current will pass through the diode in the opposite direction, a process known as reverse conduction. It should be noted that this reverse current is limited to a certain amount and can cause destruction of the diode when exceeded.

Conclusion

The D400N22BVFXPSA1 is an extremely robust single rectifier diode from the D400 series manufactured by Vishay Intertechnology. With a wide range of applications and a reliable working principle, it is a perfect product to use in industrial, commercial, and household applications.