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Zener diodes exhibit tight breakdown voltage tolerance

Posted: 02 Jul 2002 ?? ?Print Version ?Bookmark and Share

Keywords:zener diode? process technology? udz series?

The UDZ series of Zener diodes is Diodes Inc.'s first product line that utilizes proprietary high precision Zener diode process developed by subsidiary FabTech Inc.

The product line features a very tight Zener breakdown voltage tolerancespecified at less than 12.5 percent for most voltages. This allows the device to be used in applications where conventional high tolerance Zener diodes are not suitable. The diodes also exhibit very low dynamic Zener impedance, which allows them to work at current levels down to 5005A, reducing the load to the drive circuitry which in turn conserves power and extends battery life in applications.

The Zener diode process used to manufacture the components supplants the traditional method of high-temperature diffusion with a precision, ion implantation technique. This simplified process offers increased control over the Zener breakdown voltage, and reduces other variables that can occur during the process. This enables improved accuracy and uniformity of the end product.

The chip technology is initially offered in subminiature SOD-323 package and is scheduled to be implemented across a range of package styles, including multi-pin packages in Zener array configurations.

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