Home / Electronics / Polymer capacitors offer improved performance over MLCC types
Polymer capacitors offer improved performance over MLCC types
Four types of polymer dielectric capacitors are available including chip and can types and in surface mount (SMD) and through hole mounting versions (THT)

Polymer capacitors offer improved performance over MLCC types

Available from Rutronik, Panasonic polymer capacitors not only overcome the current shortage and very long lead time problems associated with multi-layer ceramic capacitors (MLCCs) but offer significant performance improvements in many areas too.

They offer engineers a perfect opportunity to specify a capacitor that is not only readily available but offers design and end user benefits also.



Four types of polymer dielectric capacitors are available including chip and can types and in surface mount (SMD) and through hole mounting versions (THT).

Polymer capacitors offer improved performance over MLCC types

Unlike MLCCs, there is no voltage derating required with Panasonic polymer capacitors.

For example, an MLCC with derating specified at 6.3V or 10V can be replaced with a Panasonic polymer cap rated at just 3V to 5V, and similarly a 25V or 50V MLCC replaced with a 20V to 35V Panasonic capacitor.

Polymer capacitors offer improved performance over MLCC types

Introducing the four different types, Panasonic ‘SP-Cap’ SMD caps are available in capacitance ratings from 2.2 to 560uF and offer the lowest ESL/ESR figures of 1nH and 3mohms respectively.

The ‘POSCAP’ is also an SMD type and comes in values from 3.9 to 1500uF and in small, space saving sizes of 2.0 x 1.25 up to 7.3 x 4.3mm.

The ‘OS-CON’ is a can type capacitor offering voltages ratings of 2.0 to 100VDC and capacitance ratings from 3.3 to 2700uF, making them also a viable alternative to electrolytic capacitors. Panasonic ‘Hybrid’ capacitors offer temperature ratings up to 145 degrees C and are AEC-Q200 compliant.

Polymer capacitors offer improved performance over MLCC types

Particularly, with their small size factor and cubical form, Panasonic SP-CAPs and POS-CAPs are the ‘go to’ products when it comes to the replacement of MLCCs.

Polymer capacitors exhibit very similar performance to multi-layer ceramic capacitors when it comes to exhibiting a stable capacitance value over a wide frequency range, and much better than tantalum types.

Also, polymer capacitors offer higher capacitance values than MLCC capacitors and they feature excellent bias characteristics.

Rutronik expands European distribution agreement with TDK

Rutronik Elektronische Bauelemente GmbH and TDK Europe GmbH have significantly expanded their distribution agreement for the European market.

In addition to the TDK-Micronas and TDK-Lambda brands, in the future, Rutronik will also offer TDK’s EPCOS brand of products. The agreement has been in effect since April 1st.

 Rutronik expands European distribution agreement with TDK
Left to right: Stefan Sutalo, Marketing Director Passive Components (Rutronik), Markus Krieg, Managing Director Marketing (Rutronik), Dietmar Jäger, Vice President Distribution Corporate Sales (TDK), Thomas Rudel, CEO (Rutronik), Josef Vissing, Executive Vice President Deputy Head of Sales Europe (TDK), Peter Arch, Senior Director Distribution Corporate Sales (TDK), Nikias Meyer, Director Distribution Sales Germany, Netherlands, Switzerland (TDK), Dietmar Rebl, Account Manager Distribution Sales Central Europe (TDK). Photo: Rutronik

Under the EPCOS brand, TDK offers aluminum electrolytic and foil capacitors, transformers, varistors, thermistors, piezo components, and actuators for haptic feedback.

Until now, Rutronik’s portfolio has included TDK inductors, MLCCs, and TMR sensors as well as Hall sensors from TDK’s Micronas brand and power supplies from TDK-Lambda. The major target markets are Industrial, Automotive and IoT.

“By expanding the range of TDK products we offer, we can now more comprehensively support our customers in the implementation of their projects – and all from one source,” says Gerd Fischer, Senior Line Manager at Rutronik. “We are delighted to be expanding our outstanding partnership with TDK Europe as well as entering new markets and acquiring new customers with the products we have added.”

TDK Europe is also very optimistic about the expanded partnership.

“Rutronik is a well established distributor in Europe and, thanks to its infrastructure, logistics, and highly qualified team, is able to support its customers with expertise and suitable components from the design stage all the way through to implementation. For TDK Europe, expanding our partnership with Rutronik was a logical step,” says Dietmar Jäger, TDK Vice President Distribution.

Check Also

Fibre optics in unusual applications

The global fibre optics market encompasses a broad range of applications beyond telecommunications, extending into …

High performance two stage EMI filters

Global EMC solutions provider EMIS announces the availability of the MF410 series of Single Phase …

Compact power analysers

A new family of Rohde & Schwarz power analysers is now available in three models …