Quad EMI Filter Array incorporates ESD protection.

Press Release Summary:

Measuring 2.0 x 1.25 x 0.7 mm, KVA21 series is RoHS-compliant, distributed constant type component that offers EMI filtering as well as ESD protection. Optimized inductor and capacitor layout on filter array results in 8 kV ESD contact discharge in accordance with IEC/EN 61000-4-2. Solution offers attenuation characteristics exceeding 30 dB over 800-1,000 MHz range and 20 dB over 1.0-2.5 GHz range.

Original Press Release:

Kyocera Launches KVA21 Series Quad EMI Filter Array with ESD Protection

June 27, 2007 - Kyocera Corporation is pleased to introduce the KVA21 quad EMI filter array, a compact, RoHS compliant, distributed constant type component featuring both electromagnetic interference (EMI) filtering and electrostatic discharge (ESD) protection in a single package. The new units, measuring only 2.0 x 1.25 x 0.7 mm (typ.), will be available in sample quantities beginning in July, and go to volume production in August.

The KVA21 series features Kyocera's new varistor material, replacing the dielectric ceramic used in previous KNA series filters. The varistor has been optimized using advanced electromagnetic simulation to combine ESD protection with EMI filtering, offering the same high level of filtering performance as before and smaller package size for integration on the circuit board.

Kyocera and affiliate AVX developed the EMI filters with the varistor function based on AVX advanced material technology. Circuits with the new material were designed with advanced electromagnetic field simulation, optimizing the L (inductors) and C (capacitors) layout on the filter array. The result is an 8 kV ESD contact discharge - in accordance with IEC/EN 61000-4-2.

The KVA21 series also offers attenuation characteristics exceeding 30dB over the wide and on the high-frequency band by distributed-constant LC filter. Even with the added function of ESD protection, over the 800MHz to 2.0 GHz band with minimal insertion loss equivalent to the conventional products.

The KVA21's optimized monolithic LC filter also offers higher reliability and complies with the RoHS directive.

KVA21 Series Overview

Type: Multilayer EMI filter array with ESD protection
Product Name:KVA21 Series
Size: 2.0 x 1.25 x 0.7 mm (typ.) (JIS code: 2012)
Manufactured at: Kokubu plant, Kagoshima Japan
Production capacity: 10 million units / month (as of August 2007)

(Static electric discharge resistance +/- 8 kV contact discharge, as per IEC/EN 61000-4-2 compliance)
Part number  Cut off  Capacitance   Attenuation      Rated   Varistor
frequency 800-1000 1.0-2.5 Voltage Voltage
KVA21300C25 300 MHz 25 pF 30dB 20dB 5V 20V
KVA21200C35 200 MHz 35 pF 30dB 20dB 5V 20V

For more Kyocera's product information, please visit at http://global.kyocera.com/prdct/electro/index.html

Kyocera Corporation

Kyocera Corporation (TSE: 6971; NYSE: KYO) was founded in Kyoto in 1959 as a producer of advanced ceramics. Today the Kyocera Group includes more than 170 companies around the world, with more than 63,000 employees. By combining engineered ceramic materials with metals and plastics, and integrating them with other technologies, Kyocera has become a leading supplier of semiconductor packages, electronic components, industrial ceramics, telecommunications equipment, optical instruments, laser printers, copiers and solar energy systems. During the year ended March 31, 2007, Kyocera's consolidated net sales were JPY 1,283 billion with net income of JPY 106,504 million. For more information, please visit http://global.kyocera.com/.

Contact from customers:
Marketing, Electronic Components Division,
Kyocera Corporation
E-mail: webmaster.ec@kyocera.jp

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