ERZ-V10D511

Varistor Voltage (Typ):	510V
Package / Case:	Disc 10mm
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Capacitance @ Frequency:	210pF @ 1kHz
Number of Circuits:	1
Energy:	92J
Current - Surge:	3.5kA
Varistor Voltage (Max):	561V
Series:	ZNR®
Varistor Voltage (Min):	459V
Maximum DC Volts:	410V
Maximum AC Volts:	320V
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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ERZ-V10D511 Application Field and Working Principle

TVS (transient voltage suppressor) or MOV (metal oxide varistor) are used to protect sensitive electronic components on circuit boards from externally generated surges, such as lightning-induced spikes. ERZ-V10D511 is a type of MOV. It is particularly suitable for protecting computers, home appliances, LED lightings, automotive electronic equipments such as dashboard, ECUs and airbags, audio/video equipments, and so on. The purpose of using a MOV is to provide protection against overvoltage and spikes. Thus, if a transient voltage spike is greater than the nominal value, the MOV will divert the excess current in order to limit the voltage to a safe level and protect sensitive electronic components on the circuit board. Though MOVs can work effectively in most applications, they are not a perfect solution, as they can experience thermal runaway. To understand how ERZ-V10D511 works in a circuit, it helps to understand the internal structure of an MOV. Generally speaking, an MOV consists of two layers of antimony-doped polycrystalline material, usually with metal oxide composite coating on one side. The two layers of antimony-doped polycrystalline material can either be weakly connected, or in series for extra choking. When a voltage hits the MOV, the two layers of antimony-doped polycrystalline material break down, creating a resistive path, which limits the voltage to about 10 volts. At the same time, the metal oxide coating absorbs the energy from the incoming surge and dissipates it to the ambient air through a heat-dissipation mechanism. When the voltage drops, the antimony-doped material reforms, allowing the MOV to "reset" and be ready for another surge. Because of its relatively low resistance and high absorption capability, the ERZ-V10D511 is able to absorb larger amounts of excess energy than other MOVs. In addition, the device is designed with temperature-sensitive elements to prevent thermal runaway and wear-out from repeated exposure to high energy surges. This makes the device particularly suitable for protecting sensitive electronic components from voltage surges. Additionally, the device comes in a surface-mount package, making it easy to install on circuit boards with minimal disruption. The product can also be connected in series to other MOVs to provide additional energy absorption and protection for sensitive components. In summary, ERZ-V10D511 is an MOV designed to provide protection against surge and spikes. It is able to absorb more energy than other MOVs, and is designed to prevent thermal runaway. The device comes in a surface-mount package, making it an easy choice for protection of sensitive components, especially in automotive electronic equipments such as dashboards, ECUs and airbags, as well as computers and LED lightings.

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