RV511K07T

Varistor Voltage (Typ):	510V
Package / Case:	Disc 7mm
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Capacitance @ Frequency:	100pF @ 1kHz
Number of Circuits:	1
Energy:	31J
Current - Surge:	1.2kA
Varistor Voltage (Max):	561V
Series:	RV
Varistor Voltage (Min):	459V
Maximum DC Volts:	415V
Maximum AC Volts:	320V
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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RV511K07T: TVS - Varistors, MOV\'s Application Field and Working Principle

RV511K07T is a series of varistors produced by Chint Electric, a leading manufacturer in the Chinese power industry. Varistors are special components designed to protect circuits against overvoltage and other undesirable events. This particular series of varistor is designed to protect circuits from transient voltage surges from lightning, contactors, transformers, and other electrical and mechanical events that may cause severe damage to circuitry.The RV511K07T series of varistors are available in various sizes and configurations, with the largest being the RV511K07T-Y2. This model is a 55 x 55mm square designed for a range of different applications.The RV511K07T-Y2 has a voltage-clamping voltage (V1mA) of 600V for AC, 730V for DC. The peak pulse current (IPP) is 50kA (8/20μs waveform). Its response time is less than 1.0ns at rated operating voltage and it has an insulation resistance of 200MΩ.The varistor uses a metal-oxide varistor (MOV) design. MOVs are non-linear components that have a “varistor” effect. When the voltage is close to the rated voltage, it will cause the resistance to decrease and the current to increase. When the voltage is above the rated voltage, the resistance will increase, limiting the current. This helps protect the circuit by diverting the excess voltage away from sensitive components.MOVs also use a thermal fuse element that is designed to cut off current if the temperature of the varistor exceeds its rating. This ensures that the varistor does not catch fire or melt down if it is exposed to excessive temperature.In terms of application fields, RV511K07T-Y2 can be used in a variety of fields, such as UPS systems, power supplies for industrial equipment, communication systems, power grid protection systems, DC-DC converters, and countless other applications where protection from transient overvoltage is required.In terms of working principle, RV511K07T-Y2 uses a combination of an MOV and a thermal fuse to provide overvoltage protection to the circuit. The MOV is a non-linear device that has a “varistor” effect. When the voltage is close to the rated voltage, it causes the resistance to decrease and the current to increase. When the voltage is above the rated voltage, the resistance increases, limiting the current. This helps protect the circuit by diverting the excess voltage away from sensitive components.The thermal fuse element senses temperature and will cut off current if the component exceeds its rating. This ensures that the varistor does not catch fire or melt down if it is exposed to excessive temperature. This ensures that the RV511K07T-Y2 is reliable and safe for use in a variety of applications.In conclusion, RV511K07T-Y2 has a wide range of applications, from UPS systems and power supplies to communications and power grid protection systems. It is designed to protect circuits from transient overvoltage using an MOV and a thermal fuse, and is an excellent choice for circuit protection.

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