Electronic Components Blog

Thursday, 10 July 2014 11:29

Syfer, Novacap, DLI and Voltronics now -Knowles Capacitors-

Syfer, Novacap, DLI and Voltronics now -Knowles Capacitors-

On March 3rd 2014 Dover completed the spin off of Knowles Corporation. During this transition, the former CMP Group was fully transferred to the new organization.

The created Knowles Corporation exists of the brands Knowles, Sound Solutions, Vectron, DLI, Novacap, Syfer and Voltronics.

Knowles Corporation is a market leader and global supplier of advanced micro-acoustic solutions and specialty components serving the mobile communications, consumer electronics, medical, military, aerospace and industrial markets.

The company is organized in 2 segments:

* Mobile Consumer Electronics: Provides the acoustic backbone to smartphones, tablets, headsets, laptops and other electronic products

* Specialty Components: Includes acoustic solutions for hearing aids, and oscillators and capacitors used in a broad range of electronic equipment


Knowles Capacitors

Knowles Capacitors, as one of the divisions of Knowles Corporation, is one company with 5 Product Groups and 4 Brands. This means that the different manufacturers under the CMP Group (Syfer Technology, Novacap, DLI and Voltronics) don't exist any longer. They've turned into one company with different brands. This one company has one business approach with one sales team creating one face to the customers.

The 5 Product Groups are

MLC Product Line
* High volume X7R, C0G
* Telecom & MRI Hi-Q

* Surface mount EMI filters

* Standardize production
* New PSL series – with standard P/Ns for power supply, LED and other high volume applications
* New Ultra Low ESR Hi-Q Range
Hi-Rel Product Line
* High reliability, medical, military
* Hi-Temp
* Military Hi-Q
* Leaded, stacked chips
* Planar arrays
* Feedthrough filters
* Non-standard parts & assemblies
SLC Product Line
* Single layer capacitors
* Hi-rel parts for military and space
* Heat sinks
* New product introductions for Telecom and Military customers
   - High cap SLC
   - 50V rated SLC
Thin Film Product Line
* Thin film devices
* Thin Film filters for military
Trimmer Capacitor Product Line
* Precisions multi-turn trimmers, ½ turn trimmers
* Strong product range for MRI applications
* New products
   - High RF power
   - Smaller HV Non-magnetic trimmers
   - Higher voltage half-turn trimmers


Related Solutions

  • Decoupling and filtering of RF Signals and noise

    The new V Series capacitors deliver increased broadband rejection in a significantly reduced footprint for bypass capacitor filtering networks.  Released under the DLI brand from Knowles Precision Devices, this cost-effective capacitor line is built on a compact 30 mil by 30 mil footprint.  This superior RF signal blocking design tool will solve the needs of design engineers looking to decouple RF signals from DC bias lines in active circuit designs, such as MMICs, or filter out noise from switching power supplies.


  • Aluminum Electrolytic Capacitors vs. Film Capacitors

    The progress in semiconductor design sets the trend in current and future devices of power electronics: it manifests itself particularly in smaller dimensions, as well as in higher voltages and switching frequencies. Referring to intermediate circuit capacitors, this trend leads to aiming at higher energy densities and larger current loads, and – at the same time – decreasing space.

    Under these conditions, especially aluminum electrolytic capacitors and plastic film capacitors offer advantageous solutions. Jianghai has both technologies in the production program and this article gives an overview on the major differences between aluminum electrolytic capacitors and film capacitors.

  • Prudent use of electrolytic capacitors in vibrating applications

    The use of electrolytic capacitors in vibrating applications like motor controllers or power tools, must be considered very carefully regarding specific criteria.
    When you're designing electronic control applications or drives, you have to think about specifications like higher power and miniaturisation.
    If you're designing vibrating applications however, you should not forget to think about vibration resistance and temperature!

  • Miniaturization of HV applications: a solution for every Power Electronics Engineer

    StackiCap™ has been set to revolutionise the world of large, HV(200V – 2kV), X7R Multilayer Chip Capacitors (MLCCs)!

    It dramatically increases the max capacitance values within a size/voltage or can reduce chip sizes. They take up 1/10th of the current footprint dimension and save up to 9/10th of the weight of a stacked cap. The advantages are spectacular on any HV products where pcb space is at a premium and max. capacitance is required in a smaller footprint. Typical applications include power supplies, projector modules, lighting systems and throughout the aerospace sector.


  • Knowles Precision Devices - Voltronics

    Voltronics Corporation is the world's leader in the design and manufacture of precision trimmer capacitors. Their engineering team works closely with customers to develop leading edge technologies to solve all of their tuning needs for variable capacitors. Voltronics trimmers include air, glass, sapphire and PTFE dielectrics that can be used from 1 MHz to over 2 GHz and at voltages up to 20,000 VDC. We also offer a complete line of non-magnetic components for the NMR and MRI industries.

  • Knowles Precision Devices - Syfer

    Syfer Technology Limited is dedicated to the manufacturing of multilayer ceramic components. It's comprehensive product range includes high volume ceramic chip capacitors through to application specific capacitor assemblies and highly complex planar arrays. Syfer also designs and manufacture a range of EMI filters including threaded and solder in panel-mounted styles as well as surface mount devices for pcb applications.

  • Knowles Precision Devices - Novacap

    NOVACAP is committed to manufacturing superior quality multilayer ceramic chip capacitors. Product offerings include surface mount capacitors from the 0402 case size to larger high voltage units (up to 20kV) for Commercial and High Reliability applications. NOVACAP also specializes in application specific capacitors and capacitor assemblies

  • Knowles Precision Devices - DLI Dielectric Laboratories

    Dielectric Laboratories is a global supplier of microwave and millimeter wave components for optical and wireless communications, military, medical, semiconductor, aerospace, and transportation markets.
    DLI is a manufacturer of High-Q Multi-Layer capacitors (MLC) and Single-Layer capacitors (SLC), Resonators, Filters, Broadband DC blocks, Thin Film components, and Custom ceramic components. In 2004, DLI acquired Voltronics Corporation, a world leader in precision variable capacitors

Related Blog messages

  • Ceramic Technology offer 10nF Safety Certified MLCCs

    MLCC’s have been used in automotive applications for years, but the big change being seen is the voltage rating and size of components now being used.  This new revolution in MLCC technology, used in control electronics, is being driven by modern on-board charging systems - PHEV & EV where mains ac is involved.  Knowles brand Syfer has responded to demands by increasing its range of 250V ac X1/Y2 Safety Certified capacitors to 10nF.

  • Knowles Capacitors update

    In 2014 Dielectric Laboratories (DLI), Novacap, Syfer Technology and Voltronics came together into a single organisation, Knowles Capacitors. With a combined history exceeding 175 years, and operating as a division of Knowles Corporation of USA, Knowles Capacitors was a merging of some of the world’s leading speciality capacitor manufacturers. The Precision Devices division of Knowles is a $200m+ global manufacturer of precision capacitors, components and crystal oscillators.

  • IPDiA's Broadband Silicon Capacitor (BBSC) Product Line at 40 GHz

    The BBSC capacitor series from IPDiA provide superior broadband performance, stability and reliability for all broadband optoelectronics and high speed data systems. They provide broadband performances better than 0.4 dB of insertion loss up to 40 GHz, as well as very high stability of the capacitance over temperature (50 ppm/°C), voltage variation, and are highly reliable.