BZW50-39B Circuit Protection

TVS - Diodes

TVS - Diodes are specialized diodes designed to protect circuits from voltage spikes. A TVS Diode, often referred to as a Transient Voltage Suppressor, is a semiconductor device used to protect components from transients, such asElectrical Overloads, Electrostatic Discharge (ESD), and Lightning. TVS Diodes limit voltage spikes in a circuit, providing an essential form of Overvoltage Protection (OVP) for sensitive electronic components.

BZW50-39B Application Field

The BZW50-39B is a low capacitance unidirectional TVS Diode for ESD protection. It is designed to protect data lines from ESD transients. It is used in various electronic products, such as mobile phones, computers, and other electronic equipment. The BZW50-39B features an ultra low capacitance of 4.5 pF, reverse stand-off voltage of 7V, and breakdown voltage of 8.3 V. It is also RoHS compliant and has a maximum operating temperature of 125 ℃.

BZW50-39B Working Principle

TVS Diodes work on the principle of breakdown voltage. When a voltage spike surpasses the breakdown voltage of the diode, current starts to flow from the anode to the cathode in a controlled manner. This limits the voltage increase in the surrounding components, effectively protecting them from damage. When the voltage spike dissipates, the diode returns to its initial state, allowing the circuit to return to normal operation.

The BZW50-39B is a unidirectional TVS diode, which is designed to protect against ESD transients. It can withstand ESD transients up to 15 kV, and has an ultra-low capacitance of 4.5 pF. This makes it ideal for high-speed data line protection, such as USB and HDMI. Furthermore, the diode can operate at temperatures up to 125 ℃, making it suitable for automotive applications.

Conclusion

TVS-Diodes, such as the BZW50-39B, are essential components for protecting sensitive electronics from ESD transients and overvoltage conditions. With ultra-low capacitance and high operating temperatures, the BZW50-39B is a reliable ESD protection device for mobile phones, computers, and other high-speed data line applications.