MOV-14D561KTR

Varistor Voltage (Typ):	560V
Package / Case:	Disc 14mm
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Capacitance @ Frequency:	360pF @ 1kHz
Number of Circuits:	1
Energy:	125J
Current - Surge:	4.5kA
Varistor Voltage (Max):	616V
Series:	--
Varistor Voltage (Min):	504V
Maximum DC Volts:	460V
Maximum AC Volts:	350V
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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MOV-14D561KTR is an overvoltage protection device belonging to Transient Voltage Suppressor (TVS) line of components, whose specifically type is MOVs (Metal Oxide Varistors). It is widely used for protecting a variety of electronic devices against high voltage transients, as these transients can cause electrical signal distortion, disrupting the correct operation of a given electronic device, and even may cause severe damages of the circuit if overvoltage is present. Furthermore, it can dissipate the excess energy of the current that can cause physical damage to the device.The MOV-14D561KTR is a 14V dual-mode device, which is typically constructed in a bidirectional style, although specialized unidirectional types can also be made. It is made with two terminals: one is connected to the ground (or chassis) and the other is connected in series to power or signal line. It features an 18V peak pulse power dissipation of up to 561W peak (300W steady-state) and a typical breakdown voltage of 10V, guaranteeing maximum protection. It offers excellent surge handling capabilities thanks to its low dynamic resistance of 90mΩ at 8V, clamping voltage of 14V, and fast transient response. The TVS typically presents low leakage current of up to 5mA, a capacitance of less than 30pF, and operating temperature range from -55º to +125º Celsius, ensuring the best performance even in harsh climatic environments. The MOV-14D561KTR is used mainly in applications where overvoltage of known magnitude is expected, such as automotive systems and commercial systems exposed to voltage spikes caused by lightning, as well as in industries where sensitive equipment needs to be protected. The device is also found in laptop and desktop computers, mobile phones, consumer electronic devices, power supplies, as well as military and aerospace electronic systems.In terms of its working principle, the MOV-14D561KTR works by the variation of the physical gap between two paralel plates made with a zinc oxide material. It begins to operate and increase its electrical resistance when the difference of voltage between the two plates exceeds a certain value. This causes the electric current to be diverted and distributed, which in turn promotes the dissipation of energy of the current in the form of heat. This implies that the device acts as a resistor in the circuit, preventing the excess of current in the protected components of the electronic equipment.The MOV-14D561KTR is ideal for use in a wide range of applications requiring transient overvoltage protection, due to its excellent clamping characteristics, fast response time, high surge handling capability and wide temperature range. This makes it the best protection solution against transients of known magnitude.

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