BZX84C10-G3-18

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The BZX84C10-G3-18 is a single Zener diode, part of a series of zeners that all have a power handling performance of 350mW. These devices have an operating temperature range from 0°C to 75°C, and are manufactured in planar technology. The products are available in an SOD323 package.

In general, zener diodes are used to regulate the voltage across a device, by limiting the voltage to a preset value. This can be done by passing the current through a Zener diode connected in reverse bias, so that when the voltage is too high the diode will turn on and the current will reduce so that the voltage will not exceed a certain value. Generally, this value is equal to the Zener voltage of the diode.

The BZX84C10-G3-18 has a 3.2V Zener voltage and operates as a low-drop-down (LDD) regulator or as an ESD clamp. Its low current consumption makes it ideal for applications in portable electronics, such as cell phones, PDA\'s and so on. It has an average current IZT of 4.5mA, a maximum current IZM of 8mA and a maximum forward voltage VF of 0.5V.

In terms of its working principle, the Zener diode still functions in reverse bias. As already mentioned, the voltage applied to the cathode must be greater that the breakdown voltage. When this voltage is applied, it causes the electrons in the depletion layer to become free and travel towards the anode. As a result, current is allowed to conduct from cathode to anode. This is what constitutes the discharge action, and it limits the maximum voltage across the device.

The Zener diode can also be used as a voltage regulator as in accordance with the Zener Voltage/Current (VZ/IZ) characteristic curve. The voltage across the device remains at the Zener Voltage until the current reaches a certain value, called Zener current (IZ), and at this point the diode starts to conduct. This increases the total current in the circuit and causes the voltage to rise slightly above the Zener voltage. It is then possible to stabilize the input voltage by adjusting the load resistances.

The BZX84C10-G3-18 is an ideal solution for applications that need a low voltage, ESD protection or regulation between two power supplies. It is an extremely cost effective component and is used in a wide range of applications, such as consumer electronics, automotive and industrial applications.

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