Ceramic ESD device performance improved by 20%

17th June 2015

Nat Bowers

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Datasheet

Compared to the peak voltage performance characteristic of previous models, Murata has increased the performance of it’s LXES ceramic ESD protection devices. Using a narrower gap between the two electrodes as a discharge element, the improved devices reduce the dielectric strength of the ceramic when voltages up to 8kV are repeatedly applied.

In order to overcome this weakness, Murata has applied it’s many years of ceramic technology expertise to fabricate a multi-layer ceramic technology that can offer low voltage ESD protection together with the dielectric strength to withstand continued high voltage discharge. Bringing the typical voltage protection down by 20%, the LXES15AAA1-153 and LXES03AAA1-154 bring a level of ESD protection performance that is equivalent to that of a silicon-based TVS device but with an ultra-low capacitance. These TVS ESD protection devices are not able to achieve the performance characteristics available with these ceramic devices.

Typical applications include providing ESD protection for the interfaces of many electronic systems. Other applications include use on antenna terminals for GPS, WiFi and LTE wireless communications products, high speed signal lines for USB and HDMI and use on external interfaces of touch panels, monitors, buttons and switches.

The LXES series now offers ESD protection according to the internationally recognised IEC61000-4-2 Level 1 standard at low voltage and low peak voltage levels. They also offer superior stability characteristic when exposed to repeated ESD and operate over a temperature range from -40 to +85°C.

The LXES15AAA1-153 is supplied in a 1005 size package and the LXES03AAA1-154 in an 0603 size.