CFTVS3V3B TR Circuit Protection

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TVS (Transient Voltage Suppressor) Diode is a device that helps protect electronic components from voltage spikes (transient overvoltage). It is also referred to as an avalanche diode, a clamp diode, a voltage clamp, or a protective diode. This article talks about the application field and working principle of CFTVS3V3B TR.

Application Field:

CFTVS3V3B TR is widely used in Automotive, Industrial, LED lighting, Consumer Electronics and other types of applications. It has an enhanced ESD protection performance due to its excellent protection characteristics. Its ESD rating is ESD8kV, which makes it suitable for the protection of delicate electronic components from damaging electrostatic discharges.

CFTVS3V3B TR can also work as a voltage regulator, especially in low voltage applications. It can help protect both devices and circuit boards from input voltage over-shoots and ESD, which can cause serious damage. It is typically used to protect Vehicle Controller Area Network (VCAN) buses from overvoltage surges, thereby preventing voltage drops in the CAN bus and improving the system’s immunity.

Working Principle:

CFTVS3V3B TR is a three-pin semiconductor device that works by clamping an input voltage below a predetermined voltage. When an overvoltage is applied across the TVS diode, it conducts the excess current into the power ground and reduces the input voltage to a safe level. During normal operation, it acts as an open circuit. The clamping voltage of CFTVS3V3B is 3.3V, which protects the equipment from exceeding voltage of upto 3.3V.

CFTVS3V3B TR can provide excellent ESD protection as well. When an ESD event occurs, the diode can dissipate the excess energy, allowing the voltage at the device pins to remain at a safe level. It is also able to handle high surge currents, enabling it to provide overvoltage protection and noise suppression for applications with large capacitive or inductive loads.

CFTVS3V3B TR is an efficient and cost-effective solution for applications that require voltage protection and ESD protection. It is able to protect electronic components from overvoltage and ESD damage, while maintaining a low capacitance profile. It is also RoHS compliant and UL recognized, making it an excellent choice for various applications.

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