BZV55-C13,115

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A Zener diode, also known as a BZV55-C13, 115, is a type of diode designed to create a reverse-bias zener breakdown in the pn-junction. This causes the diode to operate in its Zener region, allowing current to flow in the reverse direction. When operating as a Zener diode, the device turns its pn-junction into a voltage regulator in the forward direction by correcting the voltage with minimal changes to the load current.

The typical application of a BZV55-C13, 115 is to maintain a fixed voltage across the output of a power supply system. It is used to safely dissipate excess electrical energy in order to prevent system damage due to overvoltage. A Zener diode can also be used as a temperature sensor due to its unique voltage-temperature characteristics.

The BZV55-C13, 115 Zener diode device consists of a pn-junction between two metal contacts. The metal contacts are often referred to as the anode and the cathode. When the anode is more positive than the cathode, a forward bias is created, allowing electrons to flow from the anode to the cathode. This sets up a potential barrier that prevents reverse-bias current from flowing.

When the voltage across the BZV55-C13, 115 is greater than the Zener breakdown voltage (VZ), the pn-junction reaches a critical voltage point and the potential barrier breaks down at the junction. At this point, electrons are allowed to travel in the reverse direction, leading to a reverse-bias breakdown. This reverse-bias breakdown then allows a voltage regulator to be formed, allowing the output voltage of the system to remain at a fixed voltage, even as the load current changes.

The Zener diode also has an internal resistance, known as the Zener impedance. This internal resistance affects the accuracy of the voltage regulator, so it is important to ensure that the Zener impedance is within the correct range for proper operation. The Zener impedance is typically determined by the size of the diode.

When using a BZV55-C13, 115 Zener diode as a temperature sensor, the device will sense the temperature of the surrounding environment, and will output the equivalent voltage value. As the temperature of the environment increases, the Zener diode output voltage decreases.

In summary, the BZV55-C13, 115 is a single Zener diode designed to maintain a fixed voltage across the output of a power supply system. Its primary application is to dissipate excess electrical energy in order to prevent system damage due to overvoltage. It can also be used as a temperature sensor due to its unique voltage-temperature characteristics. The Zener diode requires an internal resistance, known as the Zener impedance, in order for it to operate properly.

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