CDZVT2R18B Discrete Semiconductor Products

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The CDZVT2R18B is a single Zener diode in a very small SOD-123 package, making it perfect for applications that require a small physical and electrical footprint. It uses a high quality silicon based junction to manufacture the diode, which makes it very reliable. The device is designed to work with voltages between 5.0V and 18V and has a maximum power dissipation of 65mW. It has a minimum reverse breakdown voltage of 16.9V at a current of 6.3mA.

This diode is mainly applicable in low voltage applications such as on-board voltage regulators, level shifters, EMI suppression circuits, etc. where its small size and low voltage makes it ideal for such applications. With its fast Zener action, it can be used in high-frequency switching applications making it a very versatile device. Its excellent surge capability makes it useful in clamping applications, protecting sensitive components from voltage spikes and transients.

The diode works on a very basic electronic principle, whereby it passes the current in the forward direction like any other diode, however at a certain voltage, it starts to conduct in the reverse direction. This, also known as the breakdown voltage, also known as the Zener voltage, is the point where the diode starts to conduct in the reverse direction and the voltage across it does not drop any further. At this point, it starts to regulate the voltage across itself, making it an ideal choice for low voltage applications. The internal structure of the diode includes a heavily doped P-type region and a lightly doped N-type region, with a junction between the two. This is where the breakdown voltage is created in order to regulate the voltage. The heavily doped P-type region has a high intrinsic resistance, which helps limiting the leakage current through the junction, making it relatively low.

The CDZVT2R18B has a wide temperature range of −65°C to +175°C, making it suitable for a variety of applications. The diode also features a low thermal resistance of 1.41K/W, further reducing any temperature related issues. This makes the diode extremely reliable and efficient, capable of withstand high voltage and heavy current conditions, making it the ideal choice for many applications.

In conclusion, the CDZVT2R18B single Zener diode is an ideal choice for a variety of applications, from on-board voltage regulation to EMI suppression. Its small size and low voltage make it perfect for applications where a small physical and electrical footprint is needed, while its surge capability make it a great choice for clamping applications. The device is able to handle high voltage and high current loads, making it an ideal choice for many applications. The wide temperature range and low thermal resistance add to its appeal, making it a very reliable and efficient device.

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