3KP48CA

TVS diodes are a type of semiconductor component that is designed to provide protection against electrical transients, transient voltage, and electrical static discharge. 3KP48CA is one of the TVS diode series. It is a bi-directional, gas-discharge tube type device. In this article, we will discuss its application field and working principle.

Application Field

3KP48CA TVS diode mainly used in industrial and communication products, including isolators, industrial computers, microprocessors, switches, inverters, power absorption devices, automotive ECUs, laser diodes, remote control circuits, and serial ports. It is also ideal for protecting against electrical transients and lightning strikes.

The 3KP48CA series are equipped with an overvoltage protection function to protect data lines and other components from high voltage transients. They are designed to guard against voltage spikes from surges as well as short-term voltage overloads. This makes them an ideal choice for protecting sensitive electronic components in harsh environments.

Working Principle

The 3KP48CA TVS diode has a glass tube filled with gas which acts as an insulator. When the overvoltage reaches a certain level, the insulation between the electrodes of the tube is broken down and a conducting path is formed. This conducting path dissipates the surge current, reducing the voltage to a safe level.

In addition, 3KP48CA devices come with two diodes for bi-directional protection. The two diodes are connected in reverse parallel, which means the first diode will block any reverse voltage until its breakover voltage is reached. The second diode will then take over, providing protection against any additional reverse voltage.

Finally, 3KP48CA also has a low clamping voltage that protects against high-frequency transients and a low maximum on-state voltage that helps reduce energy losses. These features make it an ideal choice for applications that require high speed data transfer.

Conclusion

3KP48CA TVS diode is a bi-directional gas-discharge tube type device, designed to provide protection against electrical transients, transient voltage, and electrical static discharge. Its application field includes isolators, industrial computers, microprocessors, switches, inverters, power absorption devices, automotive ECUs, laser diodes, remote control circuits, and serial ports. It comes with two diodes, reverse parallel connection, and low clamping voltage to protect sensitive electronic components in harsh environments, as well as worry-free overvoltage protection and low energy losses.