MXPLAD36KP350A

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TVSs, or Transient Voltage Suppressor Diodes, are designed to protect electronic devices against sudden surges of current that can damage or even destroy them. The MXPLAD36KP350A is a particularly powerful unit, able to endure short-duration peak power dissipation of up to 350 Watts. It is created and developed by ON Semiconductor and is suitable for many applications, from digital video and broadcast equipment, to industrial automation and control solutions. In today’s article, we will look at this device’s application fields and working principle in more detail.

Application Field

The MXPLAD36KP350A has a wide range of applications. It is used in digital TVs and radio receivers, for example, in order to suppress transient high voltage spikes typically generated by lightning strikes. Furthermore, these diodes are used in audio and video signal processing applications, such as TV tuners, set-top boxes, cable and satellite receivers, and car navigation systems. They can also be found in medical instrumentation, uninterruptible-power supplies, and motor drives.

MXPLAD36KP350A diodes provide reliable protection from destructive voltage spikes for industrial control systems, including PLCs (Programmable Logic Controllers) and DCSs (Distributed Control Systems). This model also offers powerful protection from electrostatic discharge (ESD) and high-energy electrical transients in TVS arrays. These transients are often caused by switching relays, or motor starts and stops.

Working Principle

In order to understand how the MXPLAD36KP350A works, first, let’s take a look at its general construction. It is a three-pin device that comprises a diode, a junction capacitor and a metal oxide varistor. This combination is known as an MOV (metal-oxide varistor). The diode conducts current in one direction when a transient voltage or current is greater than the breakdown voltage; the capacitor and MOV absorb the excess energy.

The working principle behind this device is simple. During normal conditions, the diode is reverse biased, meaning that no current flows. When a transient voltage occurs, the breakdown voltage is reached and the diode starts to conduct. The excess energy is then absorbed by the MOV and capacitor over a short period of time and dissipated, thus protecting the circuit from damage.

Conclusion

All in all, the MXPLAD36KP350A is an incredibly powerful and versatile TVS diode specifically designed to provide protection to industrial and consumer electronics. It is capable of enduring very high power dissipation, making it a suitable choice for many applications. In this article, we looked at its application field and working principle in more detail.

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