Esd Diode Selection

Esd is a big concern for hand held electronics in particular. 6 system level esd protection guide texas instruments 2018 esd solutions by application definitions of esd device specifications the following sections show esd protection solutions for popular interface applications and includes selection tables with recommended esd protection.

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The tvs diodes were located in front of the load to be protected and primarily served as a shunt path to ground for high surge currents that were generated by high voltage transients such as inductive switching induced lightning and electro static discharge esd events.

Esd diode selection. Tvs diode arrays c2012 littelfuse inc 2 this guide was developed to help electronics designers navigate selection of appropriate tvs diode array circuit protection components for equipment interfaces such usb hdmi ethernet and keypad. The tvs diodes specifically designed for transient voltage protection. Littelfuse tvs diode product selection table.

Diodes to direct the esd transient into a central tvs diode. How to select esd protection music playing welcome to the esd essentials video series which will cover the fundamentals of electrostatic discharge protection. In todays video we all use everything weve learned to select an esd diode.

Their p n junctions have a larger cross sectional area than those of a normal diode allowing them to conduct large currents to ground without sustaining damage. A study in 20011 revealed that american. Esd diode selection esd protection diodes are similar to zener diodes in that theyre designed to conduct at a certain voltage level.

Multilayer metal oxide varistors mlvs silicon tvs avalanche diode arrays and pulseguard polymeric voltage variable material technologies. Esd device selection esd technical briefs littelfuse offers three device technologies for the suppression of esd events and other emc related transients. Esd protection design guide.

Protection device selection considerations. Common schematic symbols for these tvs diodes are shown in. Tvs diodes are used to protect semiconductor components from high voltage transients.

The selection tables highlight some important. Esd electrostatic discharge esd protection design guide table of contents page introduction 2 general purpose esd protection 3 4 ethernet and lightning surge protection 5 low capacitance esd protection 6 7 application specific device selection usb11 usb20 usb30 two device solution usb30 integrated solution. The steering diodes only operate in the forward to add minimal resistance and to also.

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