MXPLAD18KP120AE3 Circuit Protection

Current - Peak Pulse (10/1000µs):	94A
Supplier Device Package:	PLAD
Package / Case:	Nonstandard SMD
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	18000W (18kW)
Series:	Military, MIL-PRF-19500
Voltage - Clamping (Max) @ Ipp:	193V
Voltage - Breakdown (Min):	133V
Voltage - Reverse Standoff (Typ):	120V
Unidirectional Channels:	1
Type:	Zener
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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TVS - Diodes: MXPLAD18KP120AE3 Application Field And Working Principle

Transient Voltage Suppressors (TVS) are a type of diode that is designed to protect sensitive electronic circuitry from voltage spikes. The MXPLAD18KP120AE3 is a uni-directional diode specifically designed for use in situations where a large voltage is expected, such as in industrial applications, telecommunications, or power line protection. In this article, we will discuss the application field and working principle of the MXPLAD18KP120AE3 TVS diode.

Application Field

The MXPLAD18KP120AE3 is designed for high-power applications in industrial, multilayer, and telecommunications environments. It can be used in these applications as surge and over-voltage protection devices. The diode has a capacitance from 70 pF to 1.6 nF, and can clamp large transients up to 17.8 KV. The diode is designed for surface mounting, which allows for a very small form factor and minimal wasted board space.

Working Principle

The MXPLAD18KP120AE3 works by clamping transients to a defined voltage. The diode capacitor combination will store and redirect the surge energy away from the protected device, which prevents it from coming in contact with the higher voltage levels. This capacitance value is adjustable, allowing the engineer to design a circuit that is optimized to the application’s needs.The MXPLAD18KP120AE3 also utilizes a voltage clamping devices (VCDs) that provide additional current capacity and clamping protection over the previous generation of TVS diodes. The VCDs provide a higher level of surge protection than the traditional standalone diodes, and are capable of protecting electronics from a wider range of transients.

Other Features

The MXPLAD18KP120AE3 also offers some additional features that make it an ideal choice for protection applications. The diode can withstand repetitive transients of up to 17.8 kV, which means that it can provide protection against multiple transients in a single cycle. Additionally, the diode has a low thermal resistance that will help keep it running cool, even during heavy surges.The MXPLAD18KP120AE3 also offers a Faster Response Time (FRT). This offers a higher level of protection than the previous generation, particularly in fast rise time applications. It will respond to transients faster than standard TVS diode, and supports higher peak surge currents.

Conclusion

In summary, the MXPLAD18KP120AE3 is an ideal choice for high-power protection applications, particularly in industrial and multilayer environments. Its adjustable capacitance value and VCDs provide additional current capacity and clamping protection, and its low thermal resistance will help keep it running cool. Additionally, its FRT allows for a faster response time and higher peak surge currents.

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