BZX84C18-7

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The BZX84C18-7 is a single Zener diode that is involved in a multitude of physical applications and comes in a handy SOD-123 package.

The diode is capable of regulating and protecting the reverse voltage in a circuit, the current will remain constant when the voltage drops. Zener diodes are also used as voltage references, and the BZX84C18-7 is no exception.

This diode has an avalanche property, where it against voltage surges in order to protect vulnerable components, e.g. holding at a set limit even when faced with a variable voltage source.

These Zener diodes are often used in the calibration of switching and linear power supplies, as their values are set by the standard of the resistor selected. The BZX84C18-7 is capable of producing a voltage of 18 V, making it perfect for these applications.

This product also has a given power dissipation of 0.5 W, which is suitable for power transistors and some capacitive circuits, particularly in the digital domain. It can also be used to detect electronic temperature shifts, both positive and negative.

The working principle of the BZX84C18-7 is simple. It works in reverse bias, meaning it can encounter a direct current flow only when it\'s connected to a voltage source. When it\'s connected, it functions as a regular diode, until there\'s a dramatic power surge or voltage drop. When that happens, it switches to a reverse biased state, where current is then only allowed to flow in a single direction.

The diode can also regulate the maximum and minimum voltage, by utilizing the “Zener voltage” of a given diode. These values are predetermined and they determine the minimum, maximum, and average voltage that can be reached within the given circuit. The BZX84C18-7 is especially adept in regulating these different levels, with an accurate tolerance of 5%, and a temperature coefficient of 2.5mV/°C.

In the end, the BZX84C18-7 is a versatile and reliable Zener diode, with many different applications, ranging from voltage regulating, to surge protecting and circuit analysis. In addition to its ability to function within high pulse rates and even generate higher reverse voltages, it\'s also capable of dissipating a given power of 0.5W, making it a great choice for many circuits.

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