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Vishay Intertechnology to Showcase High-Efficiency, High-Performance Power Electronics Products for PV Applications at Intersolar Europe 2011
MALVERN, PENNSYLVANIA — June 7, 2011 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced that it will present its high-performance, energy-efficient power electronics products at Intersolar Europe 2011 (Booth 119, Hall C3), being held June 8-10 in Munich, Germany.
Vishay’s components meet the requirements of photovoltaic (PV) applications and end products including inverters, junction boxes, MPPT tracking systems, and monitoring systems. In line with Vishay’s philosophy of being a “one-stop shop,” the company’s power electronics components range from resistors and aluminium and film capacitors to diodes and optocouplers. All these devices provide high reliability and a long operational life, which are especially important factors for locally distributed systems.
According to the market research company iSuppli, demand will surge over the coming years for the semiconductors used in solar panel inverters. By 2014, it is expected that the global market volume (currently $3 billion) will increase to $7.2 billion. In this context, the junction box − the handover point between the solar cell itself and the inverter or converter − will become increasingly important.
Vishay has continued to develop its bypass diodes especially for the junction box. The advantages of the company’s Trench Schottky TMBS® diodes include their extremely low forward bias loss, high reliability at a high working temperature range, and robust construction. The 25 V and 45 V devices cover a current range of 10 A to 60 A. One example is the 20WT04FN Schottky diode with a forward bias of 0.53 V at 20 A and a junction temperature of + 125 °C. With a leakage current of only 7 mA at 45 V, it is also suitable for switching converters with high switching frequencies.
The MKP1848 and MKP385 series film capacitors can be used as coupling or resonance capacitors in several PV inverters thanks to their compact construction, PCB mounting, self-healing function, and reliability. The devices offer nominal capacitance ratings from 1 µF to 400 µF with 2 or 4 connectors for PCB assembly (MKP1848), or nominal capacities of 60 µF to 400 µF and power rail connectors for direct IGBT assembly (MKP 1848 PCP). Vishay is also planning to release an additional mini version ( MKP1848M) later this year, and a slim variant (MKP1848S) in 2012.
The new Mini Lug NTC thermistors from Vishay feature the industry’s smallest mounting space of 65 mm2 and shortest response time of < 4 seconds. The devices enable fast and accurate temperature measurements over a range of -40 °C to + 125 °C in space-limited applications. Their small size and silver-plated nickel conductor result in a low temperature gradient of < 5 % of ΔT. Developers can choose between several electrical resistance values and can use these to optimize switching according to various criteria (self-heating, voltage output, or noise suppression).
In order to safely charge and unload energy storage devices, such as coupling, storage and filter capacitors, Vishay’s low-inductance LPS power resistors feature a power rating of up to 800 W in a compact 57 mm by 60 mm footprint. The new LPS300, LPS600, and LPS800 feature very low weight (83 grams) and are virtually induction-free (< 0.1 µH). They cover a broad resistance range of 0.3 Ω to 900 kΩ and provide a dielectric strength of 12 kVRMS. With their compact size, they save valuable space on the PCB, enabling the development of smaller end products.
Vishay’s “Alternative Energy Virtual Trade Show” ( http://www.vishay.com/landingpage/tradeshows/virtual/alternative/) offers an overview of the company’s components for alternative energy applications. Visitors will find interactive posters highlighting products for solar and wind energy as well as hybrid technology, and a comprehensive selection of links to product demonstration videos, specialist technical articles, and much more.
Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers
of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors,
and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial,
computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product
innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can
be found on the Internet at www.vishay.com.