5KP180A-B

Voltage - Clamping (Max) @ Ipp:	292V
Supplier Device Package:	P600
Package / Case:	P600, Axial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 175°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	5000W (5kW)
Current - Peak Pulse (10/1000µs):	17.5A
Series:	5KP
Voltage - Breakdown (Min):	200V
Voltage - Reverse Standoff (Typ):	180V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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TVS - Diodes: 5KP180A-B Application Field and Working Principle

TVS - Diodes are a specialized type of narrow-gap diode that can be used to protect sensitive electronic equipment against overvoltage transients. They are able to provide high-speed over-voltage protection and are widely used in circuits across many industries, including military and aerospace, industrial, and automotive. A prime example of a TVS diode is the 5KP180A-B, which is designed for use in high-frequency, high-speed, and medium-voltage applications. This article will explain the application field and working principle of the 5KP180A-B TVS diode and provide an overview of its features.

Application Field and Specifications

The 5KP180A-B is a unidirectional device that offers high-voltage protection against transients. It is designed for use in high-frequency applications with switching frequencies up to 2 GHz, and high-speed applications with propagation delays as low as 2 ns. Not only is the 5KP180A-B suitable for electronic systems in which high-speed control is essential, but also for the protection of onboard communication and data transmission systems.The 5KP180A-B has a maximum peak pulse power rating of 1.8 kW, a working peak pulse power limit of 575 W, and a maximum standoff or reverse stand-off voltage (VWM) of 180 V. Its peak repetitive reverse voltage (VRRM) is 145 V, and its peak, one-time non-repetitive surge energy rating is 357.8 Ws. The 5KP180A-B also has a low capacitance of 0.5 pF and a fast, sub-nanosecond response time.

Working Principle

The 5KP180A-B is able to provide high-speed protection against transient overvoltages because of its working principle. Transient overvoltages occur when a pulse with a width of less than 20 µs and higher than the breakdown voltage is applied to the branch of the diode. This causes an instantaneous increase in the voltage across the diode junction and a subsequent breakdown of the junction.At the moment of diode breakdown, an avalanche current passes through the junction, which is then prevented from further increasing due to a negative differential resistance that separates the PN junction into two regions. The diode acts as a three terminal component with two anode terminals in parallel and one cathode terminal. The anode terminals are connected in series and the cathode terminal is connected to ground.The operation of the 5KP180A-B device as a transient protection device begins when the anode voltage increases beyond the specified breakdown voltage. As the device begins to conduct, the voltage across the diode drops and its current increases correspondingly. This helps reduce the surge voltage across the protected circuit elements, as well as to limit any damage caused by the surge.Because of its fast, sub-nanosecond response time and high peak power rating, the 5KP180A-B is ideal for applications where fast response and high reliability is required. It is also suitable for many applications in which protection from destructive surges is essential.

Conclusion

The 5KP180A-B TVS diode is a specialized protection device that is designed for high-frequency, high-speed and medium-voltage applications. It offers fast response and high peak power rating, making it ideal for applications in which high reliability and protection from transients is essential. The 5KP180A-B works on the principle of an avalanche current passing through the PN junction, which is separated into two regions by a negative differential resistance. This helps to reduce the surge voltage and to protect against voltages exceeding the rated peak voltage.

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