MXPLAD18KP75A

Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	Nonstandard SMD
Supplier Device Package:	PLAD
Series:	Military, MIL-PRF-19500
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Type:	Zener
Unidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	7.5V
Voltage - Breakdown (Min):	8.33V
Voltage - Clamping (Max) @ Ipp:	12.9V
Current - Peak Pulse (10/1000µs):	1396A (1.396kA)
Power - Peak Pulse:	18000W (18kW)
Power Line Protection:	No
Applications:	General Purpose
Capacitance @ Frequency:	--

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The MXPLAD18KP75A is a TVS diode which is designed to protect electronic systems from transients caused by electrostatic discharge (ESD) and lightning induced surges. The diode is an avalanching breakdown, bidirectional bilateral diode featuring an operating voltage of 18V with a maximum clamping voltage of 75V.This diode is suitable for ESD protection as it can effectively absorb ESD pulses while still providing a reliable, low-leakage path that can handle lightning surges. Additionally, it is a good option for protecting sensitive equipment from transient voltage spikes.The MXPLAD18KP75A is available in the SMA and SMB packages for surface-mount applications. Not only does the product offer an excellent combination of surge performance and ESD protection but it also comes with a unique package design for excellent thermal performance.The working principle of the MXPLAD18KP75A revolves around the avalanche breakdown effect of a reverse biased p-n junction. An increase in the reverse bias beyond the breakdown voltage causes electron–hole pairs to be created along the junction, which leads to an increased current and, as a result, the device begins to conduct. During this avalanche process, the junction voltage drops to a low level in order to maintain the conduction.The avalanche breakdown of the diode limits the voltage to a safe level. This ensures that any voltage spikes, be they due to ESD or lightning induced surges, are quickly clamped and current is allowed to flow in the reverse direction and bypass the ICs and other components. Significant improvements in protection can be achieved by adding series inductors to the protection circuit. This helps in reducing the peak current seen across the diode and coping with the higher high frequency components of the voltage spike.The MXPLAD18KP75A is well-suited for applications such as automotive, industrial, and computer servers, to provide robust ESD and transient overvoltage protection. In particular, it can be used to protect dc power inputs, data lines, and I/O ports. Other applications include network cards, communication systems, automotive infotainment, and remote control systems.In conclusion, the MXPLAD18KP75A is a bidirectional TVS diode that provides reliable protection against ESD transients and surges. Its bidirectional functionality allows equal protection against positive and negative transients, while its avalanche breakdown voltage ensures that transient voltage swings are quickly clamped and current can safely bypass I/O ports and other sensitive components. The product can be used in a variety of applications, such as automotive, industrial, and computing devices, to provide solid protection from ESD and transient overvoltage.

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