ROV07-201K-S

Varistor Voltage (Typ):	200V
Package / Case:	Disc 7mm
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C (TA)
Capacitance @ Frequency:	224pF @ 1kHz
Number of Circuits:	1
Energy:	14.3J
Current - Surge:	1.2kA
Varistor Voltage (Max):	220V
Series:	--
Varistor Voltage (Min):	180V
Maximum DC Volts:	170V
Maximum AC Volts:	130V
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction
TVS (Transient Voltage Suppressors) and MOVs (Metal Oxide Varistors) are two important related components in the electronics industry. They serve two main purposes: providing protection against overvoltage and overcurrent, and increasing current capability on the power distribution side. They can also be used to reduce the power dissipation in circuits according to the need. The ROV07-201K-S is a medium voltage type TVS diode that has been used for many applications. It is well known for its stability and strength, and is popular among designers due to its lower cost compared to MOVs. In this article, we will explore the application field and working principle of the ROV07-201K-S and discuss how it compares to MOVs from a technical standpoint.
Application Field
The ROV07-201K-S is primarily used in power distribution systems, especially for data processing applications. It can be used to prevent overvoltage, overcurrent, and power dissipation in the circuit due to its low operating voltage and low leakage current. It is also suitable for high frequency applications, such as electromechanical machines, as well as AC/DC applications. The device is also commonly found in automotive, communications, and industrial applications. It has a variety of useful features, such as a very stable temperature behavior and a good response time that makes it suitable for many different applications.
Working Principle
The ROV07-201K-S is a medium voltage type TVS diode that consists of a zener diode and a reverse-conducting thyristor (RCD). It provides protection from overvoltages on load-side circuits and transient voltage surges on the power supply side. The device can be used to protect input and output signals on circuits, providing protection from electrical transients that can potentially damage the system. The diode operates when the voltage across it exceeds the holding/trigger voltage. When this happens, the thyristor will become conducting and clamp the voltage on the output side of the device. This reduces the amount of current flowing through the system, protecting from potentially damaging electrical surges.
Comparison with MOVs
MOVs are similar to TVS diodes in that they provide overvoltage protection. However, they are typically used in higher voltage applications, such as industrial machinery and electrical grids. They are also used to divert current from sensitive circuits in case of a power surge. MOVs can be divided into two categories, “on-state” and “off-state”. On-state MOVs are designed to conduct current during low-voltage conditions, while off-state MOVs are designed to open and divert the current when the voltage overshoots a certain level. This allows the circuit to be protected from potentially damaging electrical transients.When compared to ROV07-201K-S, MOVs typically provide better overvoltage protection, which makes them better suited for high voltage applications. However, they are usually more expensive than TVS diodes, such as the ROV07-201K-S, and are typically used in higher power applications.Conclusion
In conclusion, the ROV07-201K-S is a medium voltage type TVS diode that offers a variety of uses in power distribution systems. It is useful in applications where it is necessary to prevent overvoltage and overcurrent conditions, as well as reduce power dissipation in circuits. It is also suitable for high frequency applications, automotive, communications, and industrial uses. The ROV07-201K-S is widely available at a lower cost than MOVs and offers comparable performance for many applications.

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