V12P12-M3/87A

Series:	eSMP®, TMBS®
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	120V
Current - Average Rectified (Io):	12A
Voltage - Forward (Vf) (Max) @ If:	800mV @ 12A
Speed:	Fast Recovery = 200mA (Io)
Current - Reverse Leakage @ Vr:	500µA @ 120V
Capacitance @ Vr, F:	--
Mounting Type:	Surface Mount
Package / Case:	TO-277, 3-PowerDFN
Supplier Device Package:	TO-277A (SMPC)
Operating Temperature - Junction:	-40°C ~ 150°C
Base Part Number:	V12P12

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Introduction

The V12P12-M3/87A belongs to a family of rectifier diodes, the most commonly used type of diode. It is specifically designed for use in traction power supply circuit and in the electrical drive systems of high-speed trains. The device operates as a rectifier and enables DC to AC conversion. This article will explain the application field and working principle of the V12P12-M3/87A rectifier diode.

Application Field

The V12P12-M3/87A rectifier diode is designed for use in high-power applications. It is specifically used in traction power supply applications, providing electrical isolation and power conversion for the electrical drive systems of modern high-speed trains. In particular, the device is used to convert AC power to DC power, allowing the use of different types of power sources while maintaining high efficiency.The main features of the V12P12-M3/87A include a high-voltage rating of up to 1500VAC, a peak forward surge current capability of up to 1200A, and a peak forward surge power capability of up to 60,000W. In addition, the device is temperature- and humidity-resistant, and is designed with overvoltage protection and a soft-start feature.

Working Principle

The working principle of the V12P12-M3/87A is based on the principle of rectification. A rectifier is a type of diode that allows current to travel in one direction only, and acts as a kind of filter, limiting the amount of current that can pass through it. This is achieved by using two diodes connected in opposite directions. When the diode is forward biased, a positive voltage applied to its anode causes an electric field to be created between its electrodes, allowing electrons to travel from the n-type material to the p-type material and causing current to flow in the forward direction. This current flow can handled be up to 1200A. When the diode is reversed biased, the electric field between the electrode is too weak for the electrons to travel and thus current does not flow. This ensures that the current does not flow in the opposite direction, and allows the V12P12-M3/87A to act as a rectifier and convert AC to DC power. The V12P12-M3/87A also incorporates soft-start technology, which limits the amount of inrush current and provides a smooth starting sequence. The device also features overvoltage protection, which prevents damage to the device by cutting off the current if the voltage exceeds a discrete value.

Conclusion

The V12P12-M3/87A diode is a rectifier diode designed for use in modern high-power applications, specifically in the power supply circuit of high-speed trains. The device operates using the principle of rectification, allowing current to travel in one direction only and providing power conversion from AC to DC. It also incorporates overvoltage protection, soft-start technology and a high-voltage rating of up to 1500VAC. This article has discussed the application field and working principle of the V12P12-M3/87A rectifier diode. By understanding the application field and working principle of this device, users can use it more effectively and ensure that it is safely and correctly installed and operated.

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