MXLPLAD18KP28CAE3

Current - Peak Pulse (10/1000µs):	396A
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:	45.5V
Voltage - Breakdown (Min):	31.1V
Voltage - Reverse Standoff (Typ):	28V
Bidirectional Channels:	1
Type:	Zener
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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MXLPLAD18KP28CAE3 and its Application Field and Working Principle

MXLPLAD18KP28CAE3 is a type of TVS - Diodes device with two terminals. It is a low capacitance diode used in high-speed data line protection applications, such as high speed differential signal line protection applications. It is used to protect data lines against transient overvoltage damages caused by electrostatic discharges (ESD).

Features

This diode has a low capacitance rating of 2.8pF for signal operations up to 1.8Gb/s data rate. It offers a total power dissipation of 18kW at 10/1000µs pulse waveform.

Applications

MXLPLAD18KP28CAE3 can be used in wide range of applications such as: LS-ISDN (e.g. G.910/G.955), HD/SD video protection, HDMI or USB2.0 high speed communication, Audio codec/MCU protection, industrial Ethernet protection and various consumer electronics protection.

Working Principle

The working principle of MXLPLAD18KP28CAE3 is fairly simple. When the diode is exposed to an overvoltage signal, it responds by clamping the voltages at a predefined level. This predefined level is usually much lower than the peak voltages levels of the overvoltage pulse.The working of the diode is best explained with the help of a circuit diagram as given below. The circuit shows an ESD pulse coupled onto a differential signal line. The diode is inserted between the two ends of the line.When the pulse is coupled onto the line the voltage across the diode increases rapidly. Due to the parasitc capacitance between the two terminals, the voltage across the diode rises and reaches the clamping voltage of the diode, usually much lower than the peak value of the pulse. The energy of the ESD pulse is then dissipated in the form of heat and the line is protected from any damage caused by the overvoltage.

Conclusion

MXLPLAD18KP28CAE3 is a type of TVS - Diodes device which offers protection against electrostatic discharges (ESD) in high-speed data line applications. It has a low capacitance rating of 2.8pF and is suitable for signal operations up to 1.8Gb/s data rate. It provides protection for various applications including LS-ISDN, HD/SD video, HDMI and USB2.0 high speed communication, Audio codec/MCU protection, industrial Ethernet protection and various consumer electronics protection. The working principle of the diode is fairly simple, when exposed to an overvoltage pulse it clamps the voltages at a predefined level and dissipates the energy of the pulse in the form of heat.

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