Expanding its range of low-current voltage regulator diodes, Nexperia has introduced a portfolio of 50-µA Zener diodes that cover a wide 1.8-V to 75-V working voltage range to address a variety of applications. Specified at a low test current (50 μA), the Zener diodes are suited for low bias and portable battery-powered devices in mobile, wearable, automotive, and industrial applications.
Key specifications include non-repetitive peak reverse power dissipation of ≤40 W, total power dissipation ≤300 mW, and low dynamic resistance. They are also available as Q-portfolio parts, meeting the AEC-Q101 and ISO/TS16949 automotive quality standards. “As more non-automotive applications require additional quality-related services, such as PPAP (Production Part Approval Process) and extended longevity, these Q-portfolio parts fulfil this need,” said Nexperia.
The 50-μA devices are available in three different surface-mountable (SMD) package options, in an ultra-small flat no-leads (DFN) package and AEC-Q101 qualified parts. These include 40 new types per package option (covering the 1.8-V to 75-V range) available in the ultra-low-profile surface-mountable SOT23 (BZX8450), SOD323 (BZX38450), SOD523 packages (BZX58550), and leadless DFN1006BD-2 (BZX8850S) package.
The DFN package with dimensions of 1.0 × 0.6 × 0.47 mm can be used to replace leaded packages, saving up to 60% in PCB space, said Nexperia. It features side-wettable flanks (SWF), which ensure the solder flows up the side of the chip when it is soldered onto the PCB. This facilitates automated optical inspection (AOI), which meets the automotive industry’s high safety, reliability and quality requirements, said the company.
The high P(tot) of the DFN-packaged devices also run cooler than leaded parts, improving system reliability, said Nexperia.
The 50-µA Zeners are available in volume production quantities. Samples are available.
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