MXLP4KE68CA Circuit Protection

Voltage - Clamping (Max) @ Ipp:	92V
Supplier Device Package:	DO-204AL (DO-41)
Package / Case:	DO-204AL, DO-41, Axial
Mounting Type:	Through Hole
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	400W
Current - Peak Pulse (10/1000µs):	4.4A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	64.6V
Voltage - Reverse Standoff (Typ):	58.1V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to MXLP4KE68CA TVS - Diodes

Transient Voltage Suppression diodes (TVS-Diodes) are devices used to suppress transient voltage events, or spikes, which can occur on power and signal lines. These spikes can damage sensitive electronic components and cause electrical systems to be unreliable. The maximum clamping voltage of any given TVS diode is the voltage at which the device will absorb an equal amount of current to that of the surge. The MXLP4KE68CA is a bi-directional TVS diode, specifically designed for use in high-temperature applications. It is specified for clamping voltage up to 5.0V and rated for a surge current of 4.6KA.

Application Field of MXLP4KE68CA

The MXLP4KE68CA can be used for protection in many applications, such as power supply, motor control, data/signal lines, and industrial controls. It is widely used in machines, industrial control, automatic control, power equipment, and other high temperature facilities. The device is also ideal for protection of more sensitive electronic components, such as A/D converters, that can be extremely vulnerable to over-voltage transients and surges.This TVS-diode is also particularly suitable for applications where the operating temperature is high (up to 175°C). The ultra-low capacitance (200pF) is also well suited for applications using high-speed data lines, such as USB cables, where signal integrity can be compromised if the diode introduces significant capacitance.

Working Principle of MXLP4KE68CA

The MXLP4KE68CA utilises the avalanche breakdown characteristics of a PN diode to protect sensitive components from over-voltage transients. When the maximum clamping voltage is exceeded, the junction breaks down and begins to conduct. The breakdown voltage of the diode is determined by the design of the diode and is generally much lower than the voltage of the applied transient. The excess voltage and current are then redirected through the diode, thus providing protection to the circuit.The device also has two ESD (electro-static discharge) protection elements integrated into the design. These provide additional protection to the device against over-voltage transients and spike induced events. This is especially important as the device is typically operated in a high temperature environment.

Conclusion

The MXLP4KE68CA is a bi-directional TVS-diode designed for use in high-temperature applications. It is an ideal device for high temperature protection of power supplies, motor control, data/signal lines, and industrial controls. The device is also well-suited for applications using high-speed data lines. The breakdown voltage of the diode is determined by the design of the diode, and it has two integrated ESD protection elements for additional protection against over-voltage transients and spike induced events.

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