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VPG Introduces "Selecting Precision Resistors" Technical Program
Available by Customer Request, Educational Session Illustrates Differences Among Thin Film, Thick Film, and Foil Resistors
MALVERN, Pa. — July 13, 2011 — Vishay Precision Group, Inc. (NYSE: VPG) today announced that its Vishay Foil Resistors division (VFR) has introduced a new technical program for its customers in the United States Europe, and Asia . Available by customer request and held at the customer’s site, the “Selecting Precision Resistors” educational program is designed to assist customers — and especially design engineers — in resistor selection by clarifying the differences among various precision resistor technologies beyond the basic information offered on datasheets.
Whether an application requires the best available combination of all important resistor characteristics, or just one or two of the best available specific characteristics, exact knowledge of all resistor technologies is essential when selecting a device. Resistors built on different technologies may seem alike on the surface, and may even have similar specifications; however, the differences among them remain quite significant. Inherent in each type of resistive material are certain design and processing variations that strongly influence device electrical performance in ways that may become apparent only after a period of use in the end product.
In “Selecting Precision Resistors,” VFR covers the electrical properties and stress factors of thick film, thin film, and foil resistors, emphasizing the theoretical and actual resistor performance characteristics of Bulk Metal® Foil resistors, including: temperature coefficient of resistance (TCR), power TCR (PCR), ESD, short-time overload, thermal EMF, and stability.
The program includes a demonstration that illustrates in real-time the differences among the three resistor technologies when exposed to several stress factors. Stress analysis principles are discussed, in addition to methods for locating and predicting stress concentrations in analog circuits using common techniques.
“Selecting Precision Resistors” is also available to teachers, students, and other persons involved in analog circuits or in hardware development and manufacturing, and will be presented at their respective university ,research institute, manufacturing facility, or design center. To schedule a technical session, please visit http://www.vishaypg.com/foil-resistors/technical-demonstration/.
Further information about Bulk Metal Foil resistors and other VFR products is available at www.vishayfoilresistors.com. Follow Vishay Foil Resistors at http://twitter.com/VPGFoil .
About Vishay Foil Resistors
Vishay Foil Resistors is a division of Vishay Precision Group, producing the most precise and stable type of resistors available. The portfolio comprises products in a variety of resistor configurations and package types to meet the needs of a wide range of applications: discrete resistors and resistor networks in surface mount and through-hole (leaded) 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, high performance audio equipment, precision measuring instruments and aerospace and military applications.
About Vishay Precision Group
Vishay Precision Group (VPG) produces sensors based on precision resistive foil technology, and sensor-based systems. It provides vertically integrated products and solutions for multiple growing markets in the areas of stress, force, weight, pressure and current measurements. As a spin-off from Vishay Intertechnology, VPG’s decades-long track record encompasses innovations in foil precision resistors, current sensors, and strain gages, which have served as a foundation for VPG’s more recent expansion into strain gage instrumentation, load cells and transducers, weighing modules and complete systems for process control and on-board weighing. Vishay Precision Group may be found on the Internet at www.vishaypg.com.