ESD Protection Devices (anti-static components)

Murata's ESD protection devices appearance.

An ESD protection device protects a circuit from an Electrostatic discharge (ESD), in order to prevent a malfunction or breakdown of an electronic device. Murata has an extensive lineup of ESD protection devices including specialized devices for high-speed communication, ultra-miniature devices, and integrated noise filters. These devices can also be used to replace varistors, zener diodes (TVS), and suppressors.

Basic knowledge concerning ESD

LXES A Series

ESD protection device made of ceramics

LXES T Series

ESD protection device made of silicon

LXES D Series

Integrated device of ESD protection device and common mode choke coil

Products map of Murata's ESD protection devices.

The following is an outline of recommended products for each solution including case examples.

Near an antenna

Murata's ESD protection devices protect filters and ICs used in the vicinity of an antenna from destruction and defects due to ESD. They also eliminate worries concerning harmonic noise in a TVS.

[Is there anybody who is inconvenienced by such a situation?]

We carry out countermeasures against ESD by using a TVS, but are inevitably troubled by noise and loss.
Method of reducing high-frequency noise in the cellular band when using a TVS as an ESD countermeasure
When using L+C as an ESD countermeasure, we are concerned that there is insufficient ESD immunity. Also, loss increases when we attempt to increase the immunity.
Insufficient protection when using L+C as an ESD countermeasure, and method of reducing insertion loss in the low band

・Method of resolving the issue of deterioration of reception sensitivity in the cellular band due to noise in a differential transmission line

・Miniaturization of not only inductors and capacitors, but also ESD protection devices as well
・Method of eliminating worries concerning the mounting of 0603 (mm) and 0402 (mm) small LGA