Industrial Electronics

Space-saving interface protection bidirectional and symmetrical ESD-protection diode

19 April 2021

New Yorker Electronics has released the new Vishay Intertechnology bidirectional symmetrical (BiSy) two-line electrostatic discharge (ESD) protection diode in the compact DFN1110-3A package with wettable flanks. The new VBUS05M2-HT5 BiSy 2-line ESD protection diode features ultra-low capacitance to 0.37 pF for interface protection in commercial and automotive applications.

Due to its short leads and small package size, the diode’s line inductance is very low, allowing fast transients such as an ESD strike to be clamped with minimal over- or undershoots. Available in an AEC-Source: New Yorker ElectronicsSource: New Yorker ElectronicsQ101 qualified version from New Yorker Electronics, the Vishay VBUS05M2-HT5 ESD protection diode supplies a low maximum leakage current of less than 0.1 μA at the working voltage of 5.5.V.

The Vishay Semiconductors VBUS05M2-HT5 provides transient protection for data lines as per IEC 61000-4-2 at ± 20 kV (air and contact discharge). It also supports automated optical inspection for automotive systems. It has a breakdown voltage of 8.5 V typical at 1 mA and a maximum clamping voltage of 18 V at 3.4 A. Its moisture sensitivity level of 1 is in accordance with J-STD-020 and it earned a UL 94 V-0 flammability rating.

The high ESD immunity and a very low capacitance make it usable for high frequency applications like USB2.0, USB3.0 or HDMI. With the VBUS05M2-HT5 two high speed data lines can be protected against transient voltage signals like ESD. Connected to the data line (pin 1 and pin 2) and to ground (pin 3) negative transients will be clamped close above the 5.5 V working range.

This new Vishay Semiconductors’ solution saves space over solutions in small outline transistor packages and provides protection of high speed data lines against transient voltage signals. Vishay’s device offers low capacitance for the protection of high-speed data lines against transient voltage signals. Measuring only 1 mm x 1.1 mm with a height of 0.45 mm, it requires less board space than similar devices.

To contact the author of this article, email engineering360editors@globalspec.com


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