ZV25K1812T801N Circuit Protection

Series:	Automotive, AEC-Q200
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Maximum AC Volts:	25V
Maximum DC Volts:	31V
Varistor Voltage (Min):	35.1V
Varistor Voltage (Typ):	39V
Varistor Voltage (Max):	42.9V
Current - Surge:	800A
Energy:	3.9J
Number of Circuits:	1
Mounting Type:	Surface Mount
Package / Case:	1812 (4532 Metric)

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TVS - Varistors, MOVs

The ZV25K1812T801N is used in the TVS-Varistors, MOVs category. It is a transient voltage suppressor designed to protect against overvoltage and avoid possible damage to electrical equipment due to electrical loads. A Transient Voltage Suppressor (TVS) is an electrical device designed to protect electronic components from high voltage transients or spikes. It is typically used in applications such as voltage clamping, power-line transient protection, surge protection, and EMI suppression. The ZV25K1812T801N provides protection against overvoltage by dissipating the energy generated by a voltage surge or transient pulse.The ZV25K1812T801N is a Unidirectional (uni-directional) Transient Voltage Suppressor (TVS), meaning, like a diode, it is designed to protect circuits from spikes that enter in one direction. The device is graded for an 18 volt working voltage with a 25 watt peak pulse power dissipation. It has a 13.2uS maximum breakdown clamping @ 50A/1ms and an 8.2uS maximum response time at a peak rate. Its leak current is typically 3uA (@ 4V, 25°C).The working principle of the ZV25K1812T801N is simple. When a transient voltage is detected across the device, the diode junction is triggered and a current is allowed to flow. This current produces an additional voltage across the diode which in turn clamps the voltage to a safe level. The job of the thermistor is to dissipate the energy generated by the voltage surge and enable the voltage to be clamped.The device is ideal for a wide range of applications such as computers, peripherals, telecommunications, industrial and consumer products. In these applications it prevents from overvoltage due to inductive and capacitive switching, electromagnetic interface (EMI) and electrostatic discharge (ESD). Additionally, it can be used in industrial and automotive applications to protect circuits from spikes caused by ignition, electrical load switching and lightning strikes.In summary, the ZV25K1812T801N is a uni-directional TVS used to protect electrical equipment from overvoltages. It works by dissipating the energy generated by a voltage surge or transient pulse, and it is ideal for a wide variety of applications from computers and peripheral equipment to telecommunications, industrial and consumer applications.

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