VDRS07B035AGE Circuit Protection

VDRS07B035AGE Application Field and Working Principle

TVS – Varistors, MOVs are used in the protection of electronic components and systems from damage due to transient overvoltage events. Varistors, also known as voltage dependent resistors (VDRs), include such elements as metal oxide varistors (MOVs), silicon carbide varistors (SCVs) and diacritical varistors.

VDRS07B035AGE is a silicon carbide varistor with a highly temperature stable voltage dependent resistor (VDR) element. This device is designed for applications that require an element with excellent temperature stability and low leakage characteristics such as in automotive and telecommunications applications. The device is capable of handling high voltages up to 20V. This varistor is available in a wide variety of case sizes and offers a wide range of current ratings to cover a variety of applications.

Application

VDRS07B035AGE is used in automotive, telecom and power circuits for transient protection and EMI/RFI noise suppression. It is designed to protect automotive electronics from transient spikes caused by vehicle-specific sources such as load dumps, off-battery conditions, overvoltage transients, engine misfires and electrical noise from other on-board electronics.

It also provides EMI/RFI noise suppression for communication systems. The device also provides protection in power circuits from high-energy transients associated with overvoltage situations as well as from spikes and surges that can degrade the performance of sensitive electronic components.

Working Principle

The VDRS07B035AGE silicon carbide varistor works primarily on the principle of avalanche breakdown. The device has two electrodes, between which a voltage is applied. When the voltage reaches a certain value, the electric field created across the electrodes causes a breakdown of the dielectric material, resulting in the release of charge carriers and an increase in current. This current is then absorbed by the device, reducing the voltage to a safe level.

The device is able to absorb high energy transients and then recover quickly to full protection after the event. It also helps reduce EMI/RFI noise due to its ability to absorb high frequency electrical noise. The device is designed to provide a quick and reliable solution for transients up to 20V, while providing good temperature stability and low leakage characteristics.

In summary, VDRS07B035AGE is a silicon carbide varistor that offers excellent temperature stability, low leakage characteristics, and the ability to handle high voltages up to 20V. It is used for transient protection and EMI/RFI noise suppression in automotive, telecom and power circuits. The device works on the principle of avalanche breakdown and is designed to provide a quick and reliable solution for transients up to 20V.