SMBJ8.0CA-TP Circuit Protection

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Introduction to SMBJ8.0CA-TP Application Field and Working Principle

The SMBJ8.0CA-TP is a uni-directional Transient Voltage Suppressor (TVS) diode designed for ESD protection. TVS diodes are used to protect sensitive electronic equipment from power surges, electrical spikes and other unexpected voltage transients. It is available in a small and low profile SOD-323 package, making it ideal for high density circuit boards and small area designs.

Application Field of SMBJ8.0CA-TP TVS Diode

The SMBJ8.0CA-TP is suitable for a wide range of applications in areas such as automotive, industrial, consumer and telecoms. The device is able to protect various types of sensitive electronic components from damage caused by power surges, electrical spikes and other unexpected voltage transients. Automotive applications may include fuel injection systems, airbags and safety systems. Industrial applications are suitable for PLCs, motor drives and industrial control circuits. Consumer uses are found in home appliances, home security systems, and consumer electronic items. Telecoms applications range from wireless base stations, data networks and other telecoms systems.

Working Principle of SMBJ8.0CA-TP TVS Diode

The SMBJ8.0CA-TP is a uni-directional Silicon Avalanche Series TVS. It works on the principle of reverse breakdown. The TVS switches from a low resistance to a high resistance state when an overvoltage is applied. This prevents the surge or spike from damaging the sensitive components. The TVS then gradually recovers to its original state after the surge or spike.

The SMBJ8.0CA-TP is designed to redirect the current away from the sensitive components and to the connector or ground. This is done through a series of parasitic bipolar transistors and Zener diodes which form a breakdown mechanism. This allows the TVS to clamp any excessive voltage above the clamp voltage. This reduces the potential for damage to be caused to the sensitive components.

The SMBJ8.0CA-TP is able to handle up to 8kV contact discharge which is ideal for applications requiring high levels of ESD protection. The TVS diode is able to dissipate transient power of up to 400W which makes it perfect for demanding applications.

Conclusion

The SMBJ8.0CA-TP TVS diode is a uni-directional device designed for reverse breakdown in applications such as automotive, industrial, consumer and telecoms. It is available in a small and low profile SOD-323 package and is able to handle up to 8kV contact discharge and 400W of transient power. The SMBJ8.0CA-TP is suitable for a wide range of applications where high levels of ESD protection are required.

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