Smallest Design, Biggest Advantages

Small, compact, maximum bendability and high load capacity: these are the requirements for modern printed circuit boards. Whether for research or use in the medical, vision technology or automotive industries, SLIM.flex fulfils these requirements brilliantly – even within the smallest housing volumes.

SLIM.flex – Technology that inspires

Wherever small and miniature sensors are required, the ultra-thin SLIM.flex products are convincing thanks to the available standards and enormous robustness combined with maximum flexibility. Keyword flexible: this also applies to availability. From single samples to series, all variants can be ordered from the experts at Würth Elektronik Circuit Board Technology.

The most important advantages of the smart SLIM.flex technology at a glance:

Extremely thin

Suitable for even the smallest housings thanks to a thickness reduction of up to 70 percent

Dielectric strength

Safe dielectric strength of 500 volts – suitable for higher voltages

Highest reliability

Very robust in the soldering process (withstands multiple lead-free soldering processes) and perfectly suited for harsh environment applications

High-tech cable harness

High density, impedance-defined or shielded signals in a very small space – 100 percent more signals possible in half the installation space

SLIM.flex also convinces with:

  • Standards for time savings and more process reliability available
  • Can be manufactured as flex, flex-rigid or multilayer structures
  • Digital stackups available for your EDA software – for significant time and cost savings

Picture: © CERN 2007, printed circuit board added

SLIM.flex in the world's largest particle accelerator

Intensive, verified quality tests have shown that SLIM.flex can withstand even the highest temperature stress and thus qualifies for use in highly demanding environments. There is a reason why SLIM.flex is installed – among many other places – in detectors of the world's largest particle accelerator.

SLIM.flex as high-tech cable harness

SLIM.flex technology allows high density, impedance defined or shielded signals in a very small space. Compared to conventional cable harnesses, up to 100 percent more signals are possible in half the installation space. Since there are no restrictions on signal routing and geometry in the design of the SLIM.flex cable harness, the cable harness can be designed in a wide variety of ways. Thanks to the universal layer structure, the number of flex layers can be changed as required during routing without changing the stackup – and without additional costs.

By manufacturing the “cable harness” using PCB technology, wiring errors – as found in conventional cable harnesses – can be ruled out. In addition, a reproducible, consistent arrangement of the signal routing is achieved.

The assembly time of the cable harness is drastically reduced by the use of preformed SLIM.flex and ZIF contacts also eliminate the need for soldering the cables or assembling connectors. A SLIM.flex cable harness can also be used as an integrated cable harness in applications with sensitive signals, for example for the smallest image sensors in endoscopes.

Our expertise, your advantage

Whoever relies on products from Würth Elektronik cannot expect high quality alone. So that you are completely satisfied – and we live up to our motto “more than you expect” – you can benefit all around the SLIM.flex circuit board from:

  • Individual advice tailored to you and your application
  • Technical support from our in-house experts
  • Many years of experience in the field of printed circuit boards and accompanying services

Let our team of experts advise you.


Do you have questions about SLIM.flex, need samples or advice? Our specialists will be happy to help you.

Please contact us at:

Phone: +49 7940 946-3539

We are looking forward to your request.