20KPA72C

Series:	20KPA
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Zener
Bidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	72V
Voltage - Breakdown (Min):	75.98V
Voltage - Clamping (Max) @ Ipp:	121.8V
Current - Peak Pulse (10/1000µs):	174.1A
Power - Peak Pulse:	20000W (20kW)
Power Line Protection:	No
Applications:	General Purpose
Capacitance @ Frequency:	--
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Through Hole
Package / Case:	P600, Axial
Supplier Device Package:	P600

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TVS - Diodes: 20KPA72C Application Field and Working Principle
TVS-Diodes are a type of protection device developed to protect electrical and electronic components from voltage transients based on high speed switching SMD technology. They limit surge voltages created by transient events such as electrostatic discharge (ESD), lightning currents, and other causes of voltage take-off. The 20KPA72C diode is a Unidirectional TVS Diode designed for multi- Purpose Transient Voltage Suppression. It is made up of a MOS transistor and a TVS diode in the same package.How Does the 20KPA72C Protect?
The 20KPA72C diode offers low leakage, a low clamping voltage and a low breakover voltage, providing the lowest level of Transient Voltage Suppression (TVS) that is commonly available. It provides superior high speed response time when triggered, and also offers a very narrow width of operation voltage. This rapid clamping response allows for excellent transient voltage suppression in applications. The 20KPA72C includes an external capacitor which acts to dampen the pulse width of the transient and limit the duration of the voltage peak.Applications
The 20KPA72C Unidirectional TVS Diode is a multi-purpose diode, and is used in a wide variety of applications. It is designed to be used on communication lines and board level protection and is especially useful in high speed data line applications such as HDMI and CAT-5 cables, and USB and DVI ports. It can also be used to protect microcontrollers, SIM cards, power applications and circuit boards.Working Principle
The 20KPA72C Unidirectional TVS Diode uses the principle of avalanche breakdown to protect components from overvoltage transients. When a transient overvoltage is applied to the 20KPA72C, the diode enters avalanche breakdown, the diode begins to conduct electric current in the reverse direction. The 20KPA72C features a MOSFET which is triggered by avalanche breakdown and provides surge absorption to prevent damage to components from overvoltage transients. The combination of the MOSFET trigger and avalanche breakdown process between the diode junction and its external capacitor form a fast-clamping circuit which clamps the voltage to a safe level and dissipates the surge current.Conclusion
The 20KPA72C Unidirectional TVS Diode provides excellent protection against overvoltage transients, and is used in a wide variety of applications. It features a low clamping voltage, low leakage current and a fast response time. The combination of the MOSFET and the diode junction provide superior protection against transient voltages and provide superior surge absorption. The 20KPA72C is a multi-purpose diode, and is suitable for use in applications such as HDMI, CAT-5, USB and DVI data-lines, microcontroller protection, SIM cards, power applications and circuit board protection.

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