ROV10-221K

Varistor Voltage (Typ):	220V
Package / Case:	Disc 10mm
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Capacitance @ Frequency:	393pF @ 1kHz
Number of Circuits:	1
Energy:	31J
Current - Surge:	2.5kA
Varistor Voltage (Max):	242V
Series:	--
Varistor Voltage (Min):	198V
Maximum DC Volts:	180V
Maximum AC Volts:	140V
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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TVS - Varistors, MOVs

The ROV10-221K is a transient voltage suppressor (TVS) designed specifically for a variety of applications. It is commonly used in industrial and automotive applications, such as as protecting circuits from high energy transients and overvoltages. It is also used in home and commercial applications, such as surge protection circuits, and in telecommunications to reduce corrective voltage surges. The ROV10 has a peak pulse power of 5 kW, clamping voltage of 221 V, and a leakage current of 5 mA.The transient voltage suppressor is a voltage-dependent, bidirectional device that contains a variety of nonlinear elements. The most common type is the metal oxide varistor (MOV). MOVs consist of metal oxide materials which have a broad range of voltage sensitivity, making them ideal for suppressing a wide range of transient voltages. The MOV is connected in series with the line and clamps the voltage at a predetermined level. When the voltage across the MOV exceeds its zener voltage, the movement of the electrons within the MOV causes a reverse resistance in the form of a voltage clamp. This helps protect the circuit from overvoltages.Another type of transient voltage suppressor is the zener diode. Zener diodes are usually connected in series with the line and in the reverse direction, clamps the voltage at a predetermined level. The zener voltage is dependent on the doping level in the diode and is usually between 5 and 200 volts. When the voltage across the diode exceeds the zener voltage, a clamping action occurs, which protects the circuit from overvoltages.The third type of transient voltage suppressor is the silicon controlled rectifier (SCR). An SCR is an active element, composed of two layers of doped silicon. When the voltage across the SCR exceeds its gate or reverse breakdown voltage, the circuit current flows through the device. The current through the device is limited by a resistor or capacitance in the circuit and, when the voltage drops back below the gate voltage, the current stops flowing. The SCR efficiently clamps the voltage across the circuit, providing protection from transient overvoltages. The ROV10-221K provides protection for a variety of systems, including industrial electronics, control systems, automotive and consumer electronics. Its peak power rating of 5 kW ensures that it will remain operational in the event of a high energy pulse, while its 221 V clamping voltage ensures that any voltage spikes in the circuit will be reduced. The 5 mA leakage current prevents current from leaking through the device and ensures that it will remain in a low current state.In conclusion, the ROV10-221K is a versatile transient voltage suppressor (TVS) that is well-suited for a variety of applications. Its peak power rating, clamping voltage, and low leakage current make it an ideal choice for protecting circuits from overvoltages. By choosing the right TVS for the application, engineers can ensure that their electronic and automotive systems are adequately protected.

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