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VPG’s Bulk Metal® Foil Resistors Selected for Electronic Design’s Annual “Top 101 Components”
MALVERN, PENNSYLVANIA — July 11, 2012 — Vishay Precision Group, Inc. (NYSE: VPG) today announced that its Vishay Foil Resistors (VFR) brand’s RCK and S series high-precision Bulk Metal® Foil resistors and HTHA series ultra-high-precision Bulk Metal Z1-Foil hybrid chip resistors have been selected for Electronic Design’s “Top 101 Components.” The annual list compiles the 101 most popular components from the previous year among readers of the magazine’s Products of the Week newsletter.
#43 – RCK and S Series High-Precision Bulk Metal Foil Resistors
The RCK and S series resistors represent the latest in a long series of advancements that began with a breakthrough packaging concept developed by foil technology inventor Dr. Felix Zandman. In 1962, Dr. Zandman – world-renowned for his work in stress analysis – took his ideas for uniquely isolated strain gages and applied them to the electronics industry. The result was the most precise and stable resistor ever developed. The first high-precision foil resistor introduced to the market was the S102, the archetype of the current S102C and RCK devices. The S102 was also the first resistor with a flat rectangular case. This unusual configuration was at first questioned by the market. However, once Dr. Zandman demonstrated the board efficiency achieved by stacking multiple square resistors side-by-side, the square configuration was readily accepted and has since become the standard in many applications.
RCK and S series resistors feature an advanced design and manufacturing process that results in improved power dissipation, load life stability of 0.005%, fast thermal stabilization of < 1 s (nominal value achieved within 10 ppm of steady state value), low thermal EMF of 0.05 μV/ °C, resistance tolerance to ±0.005% (50 ppm), and increased performance in high-moisture, high-temperature, and high-pulse  applications. The resistors are built to handle unconventional environmental conditions with minimal drift, making them well suited for any analog circuit where stability is the main concern.
Link to product datasheet:
#53 – HTHA Ultra-High-Precision Bulk Metal Z1-Foil Hybrid Chip Resistors
HTHA resistors are part of the fourth generation of Foil technology that was developed by the VFR R&D team guided by Dr. Zandman before he passed away in June 2010. The HTHA series was launched to celebrate VFR’s 50-year anniversary. The devices were designed for demanding high-temperature applications to +240°C, including geothermal measuring equipment, turbine engine control, and environmental test chambers in military, industrial, automotive, and down-hole drilling systems. For these applications, the resistors feature exceptional load-life stability to ±0.05% at +220°C for 2,000 hours at working power, and long-term stability to ±0.05% at +240°C for 2,000 hours (no power). The devices can be connected using aluminum wire bonding or surface-mounted by electrical conductive epoxy or reflow soldering. The resistors are available in a gold-wire bonding version: the HTHG.
Link to product datasheet: http://www.vishaypg.com/ppg?63222 (HTHA Series)
Further information about Vishay Foil Resistors products is available at www.vishayfoilresistors.com.
Follow Vishay Foil Resistors at http://twitter.com/foilresistor.
About VPG Foil Resistors
Distinguished by the premier brands Vishay Foil Resistors, Powertron, and Alpha Electronics, VPG Foil Resistors is part of Vishay Precision Group (VPG), producing the most precise and stable resistors available. The portfolio comprises products in a variety of resistor and package configurations to meet the needs of a wide range of applications: discrete resistors and resistor networks in surface mount and through-hole (fixed-lead) configurations; customized chip resistor networks; precision trimming potentiometers; and discrete chips for use in hybrid circuits. The foil resistors and current sensors are used in applications requiring a high degree of precision and stability, such as in medical testing equipment, semiconductor equipment, precision measuring instruments, aerospace, and military applications.
About Vishay Precision Group
Vishay Precision Group (VPG) is an internationally recognized designer, manufacturer and marketer of: components based on its resistive foil technology; sensors; and sensor-based systems specializing in the growing markets of stress, force, weight, pressure, and current measurements. VPG is a market leader of Foil Technology Products, providing ongoing technology innovations in precision foil resistors and foil strain gages, which are the foundation of the Company’s Force Sensors Products and its Weighing and Control Systems. The product portfolio consists of a variety of well-established brand names recognized for precision and quality in the marketplace. To learn more, visit VPG at www.vishaypg.com.