TVS diodes offer ESD protection to high-speed interfaces

September 06, 2016 // By Julien Happich
Toshiba Electronics Europe has released new ESD protection diodes based on its 4th generation ESD diode array process (EAP-IV), which uses the company's proprietary snapback technology.

The DF2B5M4SL, DF2B6M4SL, DF10G5M4N and DF10G6M4N offer protection for high-speed interfaces including USB 3.1 applications. A choice of operating voltages (3.6V and 5.5V) and packages (SOD962 and DFN10) provides flexible options for realizing ESD protection in a variety of designs. The four devices simultaneously deliver low capacitance, low dynamic resistance and high ESD endurance. Minimum signal distortion of high-speed data signals is guaranteed by the ultra-low capacitance of 0.2pF, while a typical dynamic resistance of RDYN=0.5 Ω ensures low clamping voltages. High ESD protection levels are supported as electrostatic discharge voltages of at least ±20 kV according to IEC61000-4-2 are guaranteed. The SOD-962 package requires a footprint of only 0.62x0.32mm and can be placed close to ICs that need ESD protection. In case of the DF10GxM4N types, the DFN10 package can be simply placed on top of a 4-bit bus line. This flow-through design supports simple bus routing on the PCB as no additional stubs are needed to connect single TVS diodes.

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