Multilayer varistors: Ultra-flat and compact varistors for ESD protection

Nov 08, 2013

TDK Corporation presents a new series of EPCOS multilayer varistors of the CeraDiode family, which includes the most compact, flattest and most rugged varistor for the ESD protection of mobile equipment. It has a footprint of only 0.47 mm x 0.47 mm at an extremely low profile of 0.1 mm in LGA packaging. These new SMD protection components are available in EIA case sizes of 0402, 0201 and even smaller. This enables the production of varistors that are thus about 80 percent smaller than their predecessors and simultaneously offer extremely reliable ESD protection.

The new CeraDiodes have an ESD immunity of 15 kV or 25 kV, depending on the type, which more than satisfies the higher requirements on the ESD protection of sensitive ICs. Their clamping voltage is only 70 V or 90 V at a pulse voltage of 8 kV (IEC-61000-4-2), depending on the type. Thanks to their low capacitance, the signal integrity of high-speed interfaces such as HDMI is not impaired.

TDK has achieved this new breakthrough in the miniaturization of its protection components by combining a new and extremely efficient semiconductor material with its innovative micro core technology. The new ZnO material also possesses significantly more grain boundaries per volume, which increases the ability of the components to absorb ESD pulses by a factor of 50. These new micro core components can also be incorporated directly into 3D circuits and modules. The further miniaturization, improved performance and low cost of the latest CeraDiodes makes them an ever more attractive alternative to TVS diodes.

The main applications of the new CeraDiodes are in the RF components of mobile communications devices as well as high-speed interfaces such as HDMI.

Explore further: X-ray detector on plastic delivers medical imaging performance

add to favorites email to friend print save as pdf

Related Stories

NXP introduces ESD protection device for USB 3.0 and eSATA

Mar 08, 2010

NXP Semiconductors today announced the availability of a new ESD protection device, the IP4284CZ10, for high speed differential interfaces such as USB 3.0 and eSATA. The IP4284CZ10 offers the industry’s lowest differential ...

TDK intros ultra high-Q multilayer inductors

Apr 06, 2012

TDK Corporation presented the new MHQ1005P series of multilayer ceramic inductors with a Q factor that, depending on the type, is as good or much better than comparable, but more expensive, wirewound inductors. ...

Recommended for you

Fired Yahoo exec gets $58M for 15 months of work

9 minutes ago

Yahoo's recently fired chief operating officer, Henrique de Castro, left the Internet company with a severance package of $58 million even though he lasted just 15 months on the job.

Simplicity is key to co-operative robots

8 hours ago

A way of making hundreds—or even thousands—of tiny robots cluster to carry out tasks without using any memory or processing power has been developed by engineers at the University of Sheffield, UK.

Freight train industry to miss safety deadline

8 hours ago

The U.S. freight railroad industry says only one-fifth of its track will be equipped with mandatory safety technology to prevent most collisions and derailments by the deadline set by Congress.

IBM posts lower 1Q earnings amid hardware slump (Update)

9 hours ago

IBM's first-quarter earnings fell and revenue came in below Wall Street's expectations amid an ongoing decline in its hardware business, one that was exacerbated by weaker demand in China and emerging markets.

User comments : 0

More news stories

Simplicity is key to co-operative robots

A way of making hundreds—or even thousands—of tiny robots cluster to carry out tasks without using any memory or processing power has been developed by engineers at the University of Sheffield, UK.

Microsoft CEO is driving data-culture mindset

(Phys.org) —Microsoft's future strategy: is all about leveraging data, from different sources, coming together using one cohesive Microsoft architecture. Microsoft CEO Satya Nadella on Tuesday, both in ...

Floating nuclear plants could ride out tsunamis

When an earthquake and tsunami struck the Fukushima Daiichi nuclear plant complex in 2011, neither the quake nor the inundation caused the ensuing contamination. Rather, it was the aftereffects—specifically, ...

New clinical trial launched for advance lung cancer

Cancer Research UK is partnering with pharmaceutical companies AstraZeneca and Pfizer to create a pioneering clinical trial for patients with advanced lung cancer – marking a new era of research into personalised medicines ...

More vets turn to prosthetics to help legless pets

A 9-month-old boxer pup named Duncan barreled down a beach in Oregon, running full tilt on soft sand into YouTube history and showing more than 4 million viewers that he can revel in a good romp despite lacking ...