MPLAD15KP16CA Circuit Protection

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TVS diodes are used in a wide variety of applications, ranging from lightning protection, surge protection, overvoltage protection, and EMI filtering. MPLAD15KP16CA is a TVS diode specifically designed for high-speed communication and other digital systems. It offers excellent ESD protection from fast-rising transients and can also function as a low-capacitance EMI filter. This article will explain the application field and working principle of the MPLAD15KP16CA TVS diode.

Application Field

The MPLAD15KP16CA TVS diode is typically used in high-speed communications systems, such as Ethernet, USB, Firewire, and SATA. Its strong ESD protection makes it ideal for protecting digital systems from transients and EMI. The device can also be used in lightning protection applications. The high peak pulse power rating of 30A makes it capable of withstanding the intense power associated with lightning strikes.

Working Principle

The working principle of the MPLAD15KP16CA is based on the theory of avalanche breakdown. The device is manufactured with two highly doped regions separated by a very thin layer of lightly doped material. When a voltage is applied across the two regions, the lightly doped layer breaks down, creating an avalanche effect. This creates a low-impedance path which allows the current to flow between the two regions. This prevents further voltage buildup, thus providing protection from high-voltage transients.

The MPLAD15KP16CA also acts as a low-capacitance EMI filter. The breakdown voltage of the device is limited to 16V, allowing it to block high-frequency currents while allowing the passage of low-frequency currents. In this way, it can act as a low-pass filter, blocking out most of the EMI interference while allowing the desired signal to pass through.

The MPLAD15KP16CA has excellent ESD protection capabilities. It is capable of withstanding an ESD pulse of up to ±30kV, making it well-suited for applications requiring strong ESD protection. The device is also designed with a low capacitance of 0.25pF, which ensures it does not degrade the performance of high-speed circuits.

The MPLAD15KP16CA is a highly reliable TVS diode. It is rated with a long lifetime of 1 million hours, making it suitable for harsh and long-term industrial applications. The device also features a wide operating temperature range of -65°C to +125°C, which gives it excellent tolerance to extreme temperatures.

In conclusion, the MPLAD15KP16CA is a versatile TVS diode which offers excellent ESD protection, strong surge protection, and low-capacitance EMI filtration. It is designed to withstand lightning strikes and can also function as a low-impedance ESD protection device. The device is ideally suited for applications requiring strong ESD and surge protection, such as Ethernet, USB, Firewire, and SATA interfaces.

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