mobile | classic
Dataweek Electronics & Communications Technology Magazine





Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Search...

Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2019


 

EMI filters for Hi-Rel applications
13 June 2018, Circuit & System Protection

Manufacturers of electronic equipment for Hi-Rel applications often struggle to meet stringent EMC and safety standards. Knowles Precision Devices (KPD) has a range of EMI components, under the Syfer brand, that particularly appeal to designers in the medical implantable and space sectors as well as industrial, automotive, aerospace and telecom applications.

The increasing use of SMD filters over conventional panel mounted filters has simplified assembly methods, reduced production costs and enabled smaller volumetric efficiencies to be gained, giving a greater choice of options to the designer – particularly shorter lead times for development samples.

KPD continues to refine existing ranges, explore new ones and bring on board new materials, like lead-free dielectrics.

For example, the Syfer E01 and E07 ranges of feed-through MLCC ‘C’ filters now have extended working voltages from 25 V d.c. to 200 V d.c., and in certain case sizes up to 500 V d.c. These surface-mount, three-terminal EMI filter chip devices are designed to offer reduced inductance compared to conventional MLCCs when used in signal line filtering. The filtered signal passes through the chip’s internal electrodes with the ‘noise’ filtered to the grounded side contacts, resulting in reduced length noise transmission paths. They are available in C0G/NP0 and X7R dielectrics, in case sizes 0805 to 1812, and with current ratings of 300 mA to 3 A.

Particularly effective in replacing conventional array filters in medical implantable devices is the Syfer E03 (X2Y) range. Available in case sizes from 0805 to 2220, these are integrated passive devices featuring both common and differential mode capacitors in a single MLCC chip. C0G and X7R dielectric versions are both available options. X7R dielectric versions are available with KPDs proven FlexiCap termination which is strongly recommended for new designs.

Ideal for both signal and power lines, and ensuring impressive EMI filtering performance, is the Syfer SBSP range of surface mount pi-filters. With a size of only a 1206 chip they offer a beneficial combination of size and performance. Ideal for telecoms, power supplies and industrial electronic equipment, their operating temperature range of -55°C to 125°C ensures they are also suitable for military/aerospace applications. The use of X7R and C0G ceramic dielectrics sees capacitance values from 22 pF to 150 nF with a 1 A current rating, and they have working voltages up to 100 V d.c.

FlexiCap termination is used throughout the range and all versions are available with either tin or tin/lead finishes.

For more information contact Andrew Hutton, RF Design, +27 21 555 8400, andrew@rfdesign.co.za, www.rdesign.co.za


Credit(s)
Supplied By: RF Design
Tel: +27 21 555 8400
Fax: 086 653 2139
Email: sales@rfdesign.co.za
www: www.rfdesign.co.za
  Share on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Waveguide antennas for millimetre-wave
    29 May 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
    Pasternack has released a new line of waveguide antennas designed to address R&D, military/aerospace, experimental radar, test and measurement, and wireless communication applications from 40 GHz to 220 ...
  • GNSS module for lane-accurate positioning
    29 May 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
    New from u-blox comes the ZED F9K high-precision multiband GNSS (global navigation satellite system) module with built-in inertial sensors. The module combines the latest generation of GNSS receiver technology, ...
  • 50 GHz mixers in SMT packages
    29 May 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
    Marki Microwave has introduced its first 50 GHz surface-mount products, the MM1-1850HSM and MM1-1850SSM double-balanced mixers. These GaAs MMIC mixers offer wide bandwidths and high linearity in a proprietary ...
  • Wall-mount iDAS antenna
    29 May 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
    The iDAS.W.001 from Taoglas is a MIMO LTE wall-mount panel antenna designed for use in indoor distributed antenna systems (iDAS) to address in-building coverage issues in office buildings, stadiums, conference ...
  • PPTC resettable fuses
    29 May 2019, Electrocomp, Circuit & System Protection
    The Bourns Multifuse product line has added the new 8 V and 6 V rated Model MF-FSML/X series of low-resistance, surface-mount polymer positive temperature coefficient (PPTC) resettable fuses. The new ...
  • Broadband low-noise amplifier
    29 May 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
    Custom MMIC’s CMD283 is a broadband MMIC low-noise amplifier (LNA) that operates from 2 to 6 GHz (S and C bands). The device delivers 27 dB of gain with a corresponding noise figure of 0,6 dB at 4 GHz ...
  • High-power resettable fuses
    29 May 2019, Electrocomp, Circuit & System Protection
    Bourns has introduced its new 3425 (8764 metric) size, surface-mount MF-GSMF series of Multifuse polymer PTC resettable fuses, beginning with model MF-GSMF300/36X-2. The initial model has higher voltage ...
  • SPDT RF switch
    29 May 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
    The InP1012 from Teledyne is a monolithic, reflective SPDT (single-pole double-throw) active RF switch that operates from DC to 60 GHz. It has an insertion loss of 3,7 dB, a return loss of 26 dB and provides ...
  • Power and control line filter
    29 May 2019, RFiber Solutions, Circuit & System Protection
    Atlanta Micro announced a new product line of miniature power and control line filters named the AM35. The product range provides 6 filters in a tiny 1,5 x 3 mm package for filtering spurious signals ...
  • Is the supply chain broken?
    30 April 2019, Electrocomp, Diel Met Systems, ExecuKit, NuVision Electronics, RF Design, This Week's Editor's Pick, News
    The world’s insatiable demand for electronic goods has created a monster: a supply chain that spans the globe and relies on the entirety of our collective knowledge and experience in the pursuit of industry.
  • Python programming comes to Nordic’s multiprotocol SoCs
    30 April 2019, RF Design, Design Automation
    Nordic Semiconductor announced that Zerynth, a New York-based Internet of Things (IoT) software developer, has extended the availability of its ‘Zerynth IoT middleware’ to Nordic’s nRF52840 Bluetooth ...
  • RF mixers with high linearity and isolation
    30 April 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
    Marki Microwave has added new models to its range of high-linearity, high-isolation mixers, optimised for a variety of applications. For S-, C- and X-band applications, the MT3L-0113H is a lower-IF ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronics Buyers’ Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.