ESDU03A12VR25V Circuit Protection

Series:	ESDU
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Voltage - Clamping:	25V
Technology:	Polymer
Number of Circuits:	1
Applications:	General Purpose
Mounting Type:	Surface Mount
Package / Case:	0603 (1608 Metric)
Supplier Device Package:	0603

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。Introduction ESDU03A12VR25V is a type of TVS (Transient Voltage Suppressors with Mixed Technology) designed to protect sensitive electronic components and systems from the harmful effects of electrostatic discharge (ESD). It has an integrated bidirectional protection circuit against ESD discharges up to 25V in contact mode and 15kV in air mode. It also offers enhanced surge protection capability and is ideal for use in automotive and other harsh environment applications. Design and Construction ESDU03A12VR25V is a surface mountable device and consists of four components: a diode, a Zener diode, a FET, and an array of capacitors. The diode is connected to the Zener diode at one end while the other end of the Zener diode is connected to the FET gate. The FET then controls the voltage on the anode of the diode. The anode of the diode is connected to the capacitors, which forms the ESD protection circuit. Working PrincipleThe Transient Voltage Suppresor with Mixed Technology works by combining different technologies into a single circuit to create an effective ESD protection solution. This circuit consists of a diode, a Zener diode, a FET, and an array of capacitors.The diode and the Zener diode form a voltage clamp, which is responsible for limiting the peak voltage of any ESD pulse to a safe level. The FET then controls the voltage on the anode of the diode. When the ESD pulse is applied, the FET turns off and the diode charges up via the Zener voltage. This reduces the voltage to a safe level and the capacitors on the anode of the diode absorb the excess charge.When the ESD pulse is removed, the FET turns on and the capacitors discharge into the diode, thus bringing the voltage back to its original level. This process ensures that the ESD pulse is limited in its duration, preventing damage to any components connected to the device.Applications ESDU03A12VR25V is ideal for use in automotive and other harsh environment applications, such as LEDs, ICs, mobile phones, laptops, and tablets. It can also be used in data and telecom applications, as it offers enhanced surge protection capability. Its bidirectional protection ensures that the protected circuit can withstand both positive and negative ESD pulses.Conclusion ESDU03A12VR25V is a type of Transient Voltage Suppresor with Mixed Technology. It has an integrated bidirectional protection circuit against ESD discharges up to 25V in contact mode and 15kV in air mode. The device combines different technologies into a single circuit to create an effective ESD protection solution. It is ideal for use in automotive and other harsh environment applications, and offers enhanced surge protection capability.

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