ROV05H621K-2

Varistor Voltage (Typ):	620V
Package / Case:	Disc 5mm
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Capacitance @ Frequency:	50pF @ 1kHz
Number of Circuits:	1
Energy:	27J
Current - Surge:	800A
Varistor Voltage (Max):	682V
Series:	--
Varistor Voltage (Min):	558V
Maximum DC Volts:	505V
Maximum AC Volts:	385V
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Varistors, MOVsTVS stands for Transient Voltage Suppressor, which is an electronic device widely used for the protection of sensitive electronic circuits. It is designed to protect the circuit against high-voltage transients such as electrostatic discharge (ESD) and lightning surges. A TVS is typically made of two or more elements connected in a series configuration.Varistors are very similar to TVS and are also used for protection of sensitive electronic circuits. Varistors are made of a semiconductor material which are configured to create a variable resistor device. Unlike TVS, the material used to make a varistor exhibits a nonlinear “V-shaped” electrical resistance, which has a maximum which is below its nominal resistance. When an overvoltage is applied, the V-shaped varistor will absorb the excess energy and reduce the voltage.MOVs are nonlinear resistance devices which similar to varistors and TVS. MOVs are commonly used to protect circuits against transient spikes and blows caused by induced lightning, capacitance and switchiing on and off. MOVs are made up of three or four connections and works by clamping a voltage to a maximum level when an over-voltage occurs.The ROV05H621K-2 is an epoxy coated, partially molded, bidirectional transient voltage suppressor (TVS). The ROV05H621K-2 provides protection for both common and differential mode transients and is designed for protection of AC/DC power systems. It is designed to withstand an over-voltage of up to 15kV and has a clamping voltage of 12.5V. This TVS is well suited for use in board level protection in industrial, audio/visual, medical, and automotive applications.One of the major advantages of the ROV05H621K-2 is its small size. It has a low profile design, which makes it ideal for many applications such as PCBs and automotive systems. This is due to its ability to dissipate more heat and reduce the risk of device overheating. The ROV05H621K-2 can also be used to protect sensitive electronics from fast-rising voltage transients.The working principle of the ROV05H621K-2 TVS is based on the principle of a diode. It is a bidirectional, 2-terminal device, which can provide both common mode and differential mode protection. When a voltage transient occurs, the voltage across the electrodes increases until it reaches a certain threshold, refered to as the “clamping voltage”. The voltage is then maintained at this clamping voltage. The excess energy is then absorbed and dissipated by the device.The ROV05H621K-2 is designed for a wide range of applications, including industrial, automotive, audio/visual, and medical environment. Its small size and ability to dissipate heat make it suitable for PCBs and other electronic devices. It is also designed to provide biddingirectional protection for both common and differential mode transients. This device is a great choice for protecting delicate electronics from transient spikes and surges.

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