Capacitors: What’s new in the market

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Capacitor (condenser), a passive component for storing electric charge, is used as a part of electronic circuits for blocking direct current while allowing alternating current to pass and for smoothing the output of power supplies. An important component in electronic devices, capacitors should be chosen with utmost care.

By Rebika Singam

Wednesday, June 15, 2011: The Indian capacitor industry has very few manufacturers despite its wide applications. As demand outstripped supply, industry’s requirements are met by imports.

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This article is an attempt to give our readers an overview of the latest capacitors available in the market and the players offering them.

MURATA ELECTRONICS (INDIA) PVT LTD: A manufacturer and supplier

Latest capacitors

Technological changes

Important features

Application areas

  • Chip monolithic ceramic capacitors (MLCC)

  • Safety certified ceramic capacitors/high voltage ceramic capacitors

  • Radial lead type monolithic ceramic capacitors

  • Polymer aluminum electrolytic capacitors

  • Trimmer capacitors

  • Low ESR capacitors that tackle anti-resonance

  • Conductive adhesive-compliant capacitors that boost lead free trend

  • Safety recognised lead type ceramic capacitors for automotive uses

  • Size/thickness reduction: Ultrathin models and array-structured models, optimised for specific applications

  • Capacitance enhancement: Ceramic capacitors made of a new material that can acquire higher effective capacitance than conventional products

  • Telecommunications

  • Automotive

  • Lighting and energy

  • Consumer electronics

  • Smart technologies

Contact details:Email: [email protected]; Website: www.murata.com

AVX CORPORATION: A manufacturer and supplier

Latest capacitors

Technological changes

Important features

Application areas

TCN polymer capacitors

High CV rating in low profile package

Uses undertab design to optimise internal maximum volumetric efficiency, enabling these parts to offer the popular 150µF/6.3V rating in an L case measuring just 3.5 x 2.8 mm and with a profile of only 1mm

Ideal for small, low profile consumer devices such as mobile phones and MP3 players manufacturers

RoHS compliant Turbocap

Uses base metal electrode (BME) technology and has unique vertically stacked construction

Combines high CV values and high current carrying capacity with low ESR/ESL characteristics to provide excellent high frequency performance

Stacked capacitors are ideal for high frequency input/output filters, high efficiency converters, DC/DC converters, hybrid vehicles, military/COTS plus power supplies, medical electronics equipment, industrial equipment, telecom and alternative energy

Automotive transguard (R)

 

Designated VCAS series, AEC Q200 qualified varistors are designed to meet automobile industry standards and feature excellent energy/current handling capability

Automotive applications such as CAN based module, sensor, module load dump protection and motor/inductive load transient suppression applications in internal combustion engine (ICE) vehicles, hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV) and commercial vehicles

Contact details:Email: [email protected]; Website: www.asia.avx.com

DEKI ELECTRONICS LTD: A manufacturer

Latest capacitors

Technological changes

Important features

Application areas

Long life filament capacitor (PEP)

Mix dielectric (combination of plain polyester and plain polypropylene)

  • Provides three times more switching cycles than regular PET capacitor

  • Low loss factor

CFL

PSH capacitor

Polyester/polypropylene self healing capacitor (inductive design)

  • An ideal replacement for MPP/MPP capacitors in high wattage CFL and HF ballast with pitch size of 5.0 mm and 7.5 mm

High wattage CFL and HF ballast

Contact details:Email: [email protected], [email protected]; Website: www.dekielectronics.com

RABYTE ELECTRONICS LTD: A distributor/supplier

Latest capacitors

Technological changes

Important features

Application areas

Multilayer chip ceramic capacitors

Radial ceramic capacitors

Film capacitors

General & polymer electrolytic capacitors

  • Smaller, thinner and RoHS compliant

  • Multilayer, high volatge capabilities

  • SMD film capacitors

  • Improved load life and accuracy

  • Flexibility of size, voltage and capacitance

  • Better safety features

  • Design for lighting application where load life requirement can go up to 20,000 hours

  • Consumer electronics

  • IT and telecom

  • Automotive

  • Lighting and energy

  • Industrial electronics

Contact details:Email: [email protected]; Website: www. Rabyte.com

AMAR RADIO CORPORATION: A distributor/supplier

Latest capacitors

Important features

Electrolytic capacitors

  • 0.1 Mfd/63 V to 20,000 Mfd in 63 V in 85º C and 105º C temperatures (available in radial for smaller range)

  • 1000 Mfd/63 V, 100 V, 200 V, 250 V, 350 V, 400 V and 450 V to 6800 Mfd/500 V and up to 2,00,000 Mfd in 50 V range, in 85 º C in PG-6D in 50 x 105 mm, 63 x 120, 76 x 120 mm and 90 x 220 mm, with/without bottom mounting stud (available in higher range with different types of mounting depending on the costumers requirement)

Contact details:Email: [email protected]; Website: www.amarradio.com

Other Players in the market

Manufacturer/distributor

Product details

RS COMPONENTS & CONTROLS (INDIA) LTD

Website: www.in.rsdelivers.com

Cap array 100nF 25 V 0612 SMD-20+80% Y5V, capacitor aluminium 105 º 22uF 50V 5×11 and capacitor radial MCLC SR20 100nF 100 V and T350 radial tantalum capacitor, 35V, 1uF, etc

EPCOS INDIA PVT LTD

Website: www.epcos.com

Aluminum electrolytic capacitors and film capacitors (self healing)

KELTRON COMPONENT COMPLEX LTD

Website: www.keltroncomp.com

Aluminium electrolytic capacitors, motor start capacitors, metallised plastic film capacitors, ceramic disc capacitors, motor run capacitors

JV ELECTRONICS (P) LTD

Email: [email protected]

Radial type aluminum electrolytic capacitor, general aluminum electrolytic capacitor, aluminum electrolytic capacitor, super miniature aluminum electrolytic capacitors, electrolytic capacitors

LEEDS ELECTRONIC INDUSTRY INC

Website: www.leedsind.com

Tantalum capacitor, high-voltage capacitors, polyester film capacitor

S ENTERPRISES

Website: www.senterprisesindia.com

HT and LT capacitors, MPP capacitors and high voltage capacitors

RESCON MANUFACTURING CO PVT LTD

 

Chip aluminium electrolytic capacitor, metallised polyester capacitors with ±10 per cent capacity, metallised polyester capacitors with 1.6 X Vr test voltage and fan regulator capacitors with 250 V AC voltage, etc

Electronics Bazaar, South Asia’s No.1 Electronics B2B magazine

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