BZX79-B75,133

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As an important component of p-n junction, Zener diodes are among the most widely used electronic device. The BZX79-B75 133 is a type of single Zener diode, which means it comprises a single p-n junction, and is typically marked as 1N5370BSX. It is a low power, small signal type of Zener diode with a reverse breakdown voltage of 13.3V. As with all Zener diodes, the BZX79-B75 offers clamp protection against voltage transients and voltage spikes.

The most common application of BZX79-B75 is as a voltage regulator. When the diode is connected in reverse bias, it clamps the voltage at 13.3V, regardless of the output voltage being higher. This property is especially useful in circuits that require consistent voltage regulation, especially in the presence of voltage spikes. Another application of BZX79-B75 is that it is often used as part of voltage divider circuits. By connecting the diode along with other resistors, it can create a voltage divider, where the output voltage is a fraction of the input voltage.

The operating principle of a Zener diode is simple, but also robust. When the Zener voltage is reached, the avalanche effect begins and the p-n diode junction breaks down. This causes the overall resistance of the diode to reduce, which in turn causes an increase in the current through the diode. The Zener diode then acts as a voltage regulator, ensuring the output voltage remains at a constant level regardless of the load on the circuit.

In summary, the BZX79-B75 is a single Zener diode with a reverse breakdown voltage of 13.3V. It is a low power, small signal type of Zener diode used in voltage regulator and voltage divider circuits. It operates by utilizing the avalanche effect to regulate the output voltage regardless of the load on the circuit. As such, it is a reliable tool for ensuring consistent voltage regulation in electronic devices.

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