ESDLC3V3D3-TP Circuit Protection

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TVS (transient voltage suppressor) diodes are devices that have the ability to protect sensitive electronics from voltage transients caused by external sources such as electrostatic discharge (ESD), electrical fast transients (EFT), and lightning. TVS diodes have saved many manufacturers countless hours and money in repairs from voltage transients, and the ESDLC3V3D3-TP is a TVS diode that is well-suited for ESD protection.

Description of the ESDLC3V3D3-TP

The ESDLC3V3D3-TP is a low capacitance, 400W diode with an ultra-low dynamic resistance of 0.06 ohm. It is available in an SOD-323 package, which measures 2.7 mm by 1.9 mm. This device has a reverse standoff voltage of 3.3 volts; it can sustain a surge current of 8A (10/1000μs waveform) and a peak clamping voltage of 4.7V. The ESDLC3V3D3-TP has excellent clamping capability for ESD pulses.

Application Field of ESDLC3V3D3-TP

The ESDLC3V3D3-TP is suitable for a variety of applications where protection from transients is paramount. It can be used in high-speed USB 3.1 ports, automotive test and verification equipment, laptop computers, and other consumer electronic products. It can also be used in high-speed automotive networks such as CAN, LIN, MOST, and FlexRay.

Working Principle of ESDLC3V3D3-TP

The working principle of the ESDLC3V3D3-TP is based on its TVS (transient voltage suppressor) diode structure. When a high voltage transient is applied, it places the diode into a breakdown mode. This causes the current to increase exponentially, forming a voltage clamp and dissipating the energy of the transient, thus protecting the circuit from damage.

This breakdown process starts by creating a large depletion region between the p-side and the n-side of the diode. As a result, only low current flows until the reverse bias voltage reaches the peak current point. At this voltage, the depletion region decreases significantly, allowing a large current to flow through the device. This current then clamps the voltage, dissipating the energy of the transient.

Conclusion

The ESDLC3V3D3-TP is a low capacitance, high-performance TVS diode that is well-suited for use in applications where protection from voltage transients is needed. Its ultra-low dynamic resistance, high surge current handling, and peak clamping voltage make it a desirable device for a variety of applications.

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