Littelfuse Inc. ROV14-680K-2
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- ROV14-680K-2
- Littelfuse Inc.
- VARISTOR 68V 1KA DISC 14MM
- TVS - Varistors, MOVs
- ROV14-680K-2 Datasheet
- Disc 14mm
- Disc 14mm
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Lead free / RoHS Compliant - 23455
- Spot Inventory / Athorized Dstributor / Factory Excess Stock
- 1 year quality assurance 》
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What is ROV14-680K-2
Littelfuse Inc. Part Number ROV14-680K-2（TVS - Varistors, MOVs）, developed and manufactured by Littelfuse Inc., distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.
ROV14-680K-2 is one of the part numbers distributed by Jinftry, and you can learn about its specifications/configurations, package/case, Datasheet, and other information here. Electronic components are affected by supply and demand, and prices fluctuate frequently. If you have a demand, please do not hesitate to send us an RFQ or email us immediately [email protected] Please inquire about the real-time unit price, Data Code, Lead time, payment terms, and any other information you would like to know. We will do our best to provide you with a quotation and reply as soon as possible.
ROV14-680K-2 Specifications
- Part NumberROV14-680K-2
- CategoryTVS - Varistors, MOVs
- ManufacturerLittelfuse Inc.
- DescriptionVARISTOR 68V 1KA DISC 14MM
- PackageDisc 14mm
- Series-
- Operating Temperature-40°C ~ 125°C (TA)
- Mounting TypeThrough Hole
- Package / CaseDisc 14mm
- Number of Circuits1
- Capacitance @ Frequency5099pF @ 1kHz
- Varistor Voltage (Typ)68V
- Current - Surge1kA
- Maximum DC Volts56V
- Varistor Voltage (Min)61.2V
- Varistor Voltage (Max)74.8V
- Maximum AC Volts40V
- Energy17J
Application of ROV14-680K-2
ROV14-680K-2 Datasheet
ROV14-680K-2 Datasheet , Disc 14mm,-40°C ~ 125°C (TA),Through Hole,Disc 14mm,1,5099pF @ 1kHz,68V,1kA,56V,61.2V,74.8V,40V,17J
ROV14-680K-2 Classification
TVS - Varistors, MOVs
FAQ about TVS - Varistors, MOVs
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1. What is the difference between varistors and MOVs?
There are some differences between varistors and MOVs (Metal Oxide Varistors) in terms of definition, characteristics, and applications.
Definition and Characteristics
Varistor (VDR/MOV): A varistor is a voltage-sensitive resistor whose resistance value changes with voltage. When an excessively high voltage appears in a circuit, the internal resistance of the varistor drops sharply and turns on quickly, protecting electronic components from surges. MOVs are usually made of zinc oxide and have the characteristics of large current flow, slow response speed, and large parasitic capacitance.
MOV: Specifically refers to metal oxide varistor, which is a type of varistor and is widely used in electronic circuits. Its characteristics include large current flow, slow response speed, and large parasitic capacitance.
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2. What is the use of MOV varistor?
MOV varistor (Metal-Oxide Varistor, referred to as MOV) is mainly used for overvoltage protection, especially in the fields of power electronics, communication electronics and industrial control.
Main use
Overvoltage protection: MOV varistors play the role of overvoltage protection in the circuit. They can quickly reduce their resistance value when voltage spikes or surges occur, thereby consuming surge energy and protecting other components in the circuit from damage.
Electrostatic protection: MOV varistors are often used for electrostatic protection, especially at the power input end, which can effectively prevent static electricity from damaging the circuit.
Lightning protection: By suppressing the surge voltage caused by lightning strikes, the equipment is protected from lightning strikes. -
3. What is the difference between TVS diodes and varistors?
The main differences between TVS diodes and varistors are in working principles, response time, current carrying capacity, nonlinear characteristics, capacitance effects, reliability and life, and application scenarios.
Working principle:
TVS diode (ransient voltage suppressor) is a high-efficiency protection device in the form of a diode. When both ends are subjected to instantaneous high-energy impact, the TVS diode can quickly change the impedance value from high to low, absorb large current, and clamp the voltage to a predetermined value.
Varistors use their nonlinear characteristics to sharply reduce resistance when the voltage exceeds a certain threshold, thereby absorbing surge current.
Response time:
The response time of TVS diodes is very fast, usually at the sub-nanosecond level (ps level).
The response time of varistors is relatively slow, usually at the nanosecond level (ns level).
Current carrying capacity:
Varistor can withstand larger surge currents. The larger the volume, the greater the surge current it can withstand, which can reach tens of kA to hundreds of kA.
The current carrying capacity of TVS diodes is relatively small.
Nonlinear characteristics:
The nonlinear characteristics of TVS diodes are similar to those of voltage-stabilizing diodes. The leakage current is very small before breakdown, and it has standard voltage-stabilizing characteristics after breakdown.
The nonlinear characteristics of varistors are poor, with a higher limiting voltage at high currents and a larger leakage current at low voltages.
Capacitive effect:
The capacitance of TVS diodes and varistors is large, but TVS diodes also have low-capacitance products, which are suitable for the protection of high-speed signal lines.
Reliability and life:
TVS diodes have high reliability, are not easy to deteriorate, and have a long service life.
Varistors have poor reliability, are prone to aging, and have a short service life.
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