ERZ-U12JP511B

Series:	ZNR®
Part Status:	Active
Lead Free Status / RoHS Status:	--
Maximum AC Volts:	242V
Energy:	--
Number of Circuits:	3
Operating Temperature:	-40°C ~ 70°C (TJ)
Mounting Type:	Chassis Mount
Package / Case:	Module

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TVS - Varistors, MOVs

The ERZ-U12JP511B is a Transient Voltage Suppressor (TVS) which is widely used for electrical circuit protection. This TVS is a two-terminal device, also known as a voltage-dependent resistor, or varistor. It is designed as a symmetrical device, which is able to absorb excess voltages and suppress overvoltage.A TVS consists of a metal oxide layer that is sandwiched between two electrodes. When the voltage pulse, such as a surge or spike, exceeds the breakdown voltage of the metal oxide layer, current flows through it and dissipates the energy. The metal oxide provides a clamping action preventing the voltage from exceeding the breakdown voltage and thus protecting the electrical circuit.When dealing with voltage surges, the ERZ-U12JP511B is able to handle currents up to 500A (1.2/50 microseconds). The maximum sustained voltage for this particular TVS is 11 volts, with a holdoff voltage of 8 volts. The clamping voltage is typically 5.5 volts, and the dissipation power is 1.1 watts.The ERZ-U12JP511B also has an incredibly fast response time, allowing it to react within a few nanoseconds. This helps protect sensitive and expensive components from being damaged by voltage surges.Besides offering protection from voltage surges, TVS devices can also be used to reduce noise and electromagnetic interference. In this application, the TVS acts as a high-impedance barrier and helps to limit interference between circuits. This is particularly useful in preventing movement problems and interference in automotive applications. For additional protection, an MOV (Metal Oxide Varistor) may be connected in parallel with the TVS. This device acts like a capacitor, which helps to reduce or eliminate the peak current that occurs during a voltage transient. Both the TVS and the MOV, when used in combination, provide optimal protection against overvoltage and transient conditions.Overall, the ERZ-U12JP511B is an ideal choice for protection against transient voltage surges thanks to its fast response time, low holdoff voltage, and high current handling capabilities. It can also be used in combination with an MOV to provide maximum protection against overvoltage and transients in automotive applications.

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