MPLAD18KP78CA

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TVS（Transient Voltage Suppression）diodes manufacturers are providing wide variety of devices in different packages. One of the most popular and widely-used device is MPLAD18KP78CA. This device is a rugged 1200 W unidirectional TVS diode, often used to protect against on surges caused by lightning or other sources.

The MPLAD18KP78CA, with its small package size（78 Milli meters）and an industry-leading surge capability, is one of the most valuable solutions available on the market. It offers highly compact and cost effective protection in applications such as portable consumer electronics, power supplies, and automotive.

This robust diode offers a wide operating temperature range of -55 ℃ to +125 ℃. It is suitable for PoC,IEC and IEC EFT standards. In addition, its low capacitance performance make it ideal for applications that require higher speed signals.

The MPLAD18KP78CA features a low stand-off voltage rating of 3.5V. This rating helps to reduce power consumption, which assists surge protection needs. It also has a low on-state resistance of 0.2 ohms, which helps reduce power loss when in standby mode.

When it comes to the application field of this TVS diode, it is often used in automotive, consumer electronics, telecoms and industrial applications. It can be used as a protection against Electrostatic Discharge (ESD), Transient Over-Voltage, and EFT events. It helps to ensure that these systems are adequately protected from power surges.

The working principle of the MPLAD18KP78CA is quite simple. It consists of two main components, the diode and the Zener element. The diode will conduct electric current when subjected to a higher voltage than its rated forward voltage, whereas the Zener element will shunt the extra voltage away from the system.

When exposed to a surge voltage, the diode will start conducting current through the Zener element. During this process, the current will be clamped to the maximum clamping voltage rating of the diode. This ensures that the system is effectively protected from surge voltages.

Furthermore, the Zener element has a reverse breakdown voltage. During the surge protection process, if the surge voltage is higher than the reverse breakdown voltage, then the diode will start conducting current away from the system. This helps divert the volatile energy away from the system.

To summarize, the MPLAD18KP78CA is a highly-capable TVS diode, with its small package size and an industry-leading surge capability making it one of the best surge protection solutions available. In terms of its application field, it is often used in automotive, consumer electronics, Telecoms and industrial applications, helping to reduce the risk of power surges. Additionally, its working principle is quite simple; the diode conducting current and the Zener element shunting the extra voltage away from the system.

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