MPLAD18KP160AE3 Circuit Protection

Transient Voltage Suppression (TVS) diodes are becoming increasingly important components for the protection of sensitive electronic devices. The MPLAD18KP160AE3 is a unidirectional TVS diode specifically designed for the ESD protection of telecommunication ports from 20V to 160V.

To understand the application field and working principle for the MPLAD18KP160AE3, it is first necessary to discuss the basis for transient voltage surge suppression. Transient voltage surges can occur when two points of opposite polarity are suddenly short-circuited together. In such a situation, energy stored in the electric field along the lines of force is suddenly released and appears as a very high voltage. The TVS diode is designed to absorb and dissipate this surge, thereby protecting sensitive electronic devices.

The MPLAD18KP160AE3 is designed specifically for use in telecommunications applications. It features a variety of protection circuits, including a low-capacitance combined electrostatic discharge (ESD) protection, a reverse polarity protection circuit and a unique ESD clamping protection. It also features a low leakage current of less than 10μA due to its unique limited leakage transistor (LLT) structure. This ensures that the diode does not interfere with the normal operation of the circuit. The MPLAD18KP160AE3 also has a low dynamic impedance of only 0.2Ω, allowing the device to dissipate even larger surges with extreme efficiency.

The working principle of the MPLAD18KP160AE3 is based on its low-capacitance combined ESD protection circuit. When a surge of voltage is detected, the diode quickly clamps the voltage levels and absorbs the energy, thus preventing it from reaching the sensitive components of the circuit. The device works on the principle of a negative-current electron phase-shift, allowing it to handle both positive and negative polarity surges with equal efficiency. The device also features a soft recovery characteristic that prevents any oscillations from developing after the surge is dissipated.

The MPLAD18KP160AE3 also has a low thermal impedance junction, which ensures that the device does not overheat during operation. The device is typically used for the protection of 10GB up to 28GB transmission lines and is RoHS compliant. Its compact size (SMP) allows it to be mounted in even the tightest of spaces, making it an ideal choice for applications where space is at a premium.

In conclusion, the MPLAD18KP160AE3 is a unidirectional TVS diode specifically designed for the ESD protection of telecommunication ports from 20V to 160V. Its low leakage current, low dynamic impedance, and low thermal impedance junction make it a very efficient device for the protection of sensitive devices from transient voltage surges. The device is also RoHS compliant and can be mounted in tight spaces due to its small size, making it an ideal choice for telecommunications applications.