New Products
October 29, 2009
Stackpole Develops Low-Profile, Sulfur-Resistant Resistor Chips For Computer Peripherals
Stackpole Electronics Inc. (SEI) introduced its RNCP Series thin film resistors which are said to provide high accuracy with a low standard TCR (temperature coefficient of resistance) in a low profile chip. They are also said to be a low-cost alternative to high-power thick film resistive technology. Impervious to sulfur contamination, the RNCP Series is said to provide highly stable and accurate performance characteristics, making it well suited for use in computer and computer accessory applications. A truly green component, the RNCP Series is RoHS-compliant without exemptions, as it does not contain any lead-containing glass. In addition, the elimination of silver and gold, which are used in traditional sulfur resistant application requirements, is said to reduce the overall cost of the resistor.
The RNCP Series resistors were developed with a high tolerance for harsh environments, including shock, vibration and temperature extremes with the goal of enhancing their performance and lifespan. The thin film technology provides high power handling, stability and low noise, giving them ideal characteristics for use in notebook computers, printers, scanners and test instruments.
"In recent years, consumer electronics have trended toward more ’green’ products, increasing the demand for components with reduced package size and higher energy performance," said Kory Schroeder, Director of Marketing at SEI. "With the development of these new thin film resistors, we are able to meet customer requirements for a smaller chip size and yet keep the cost within 10% of comparable thick film chips."
Featuring absolute tolerances to 1% and a TCR of 100ppm/°C, the RNCP Series resistors are available in 0402, 0603, 0805 and 1206 chip sizes, with power ratings from 0.1 to 0.5W and maximum working voltages from 50V to 200V.
The RNCP Series is available on standard 7-inch reels. Pricing varies with chip size, tolerance, and resistance value and ranges from around $1.00 per thousand to $10 per thousand in full reel quantities; contact Stackpole for volume pricing.
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Primitive batteries capable of producing ½ volt of electricity were made in Mesopotamia between around 200 B.C. and 200 A.D. They were used mainly for electroplating silver onto copper.