Vishay Intertechnology, Inc. today announced that it has enhanced its PTN series of precision surface-mount thin film chip resistors with a lower absolute TCR of ± 10 ppm/ degree C and tighter tolerances to ± 0.05%. Built using a self-passivated, moisture-resistant tantalum nitride resistive film technology, the Vishay Dale Thin Film devices offer high power ratings to 2W over a wide temperature range of -55 to +155 degrees C. The tantalum nitride resistive film of the PTN resistor ensures a moisture resistance level that exceeds MIL-PRF-55342 limits. This makes the device ideal for use in low-noise, high-precision control systems for military, aerospace, telecommunications, and industrial applications where moisture during operation or long-term storage may be a concern.
The PTN series is offered in 13 case sizes from 0402 to 2512 and provides a wide range of resistance values from 10Ω to 3MΩ, with nonstandard values available. Featuring a high-purity ceramic substrate, the devices’ wraparound terminations offer an adhesion layer covered with a nickel barrier and solder coating and contribute resistance of < 10mΩ. Epoxy-bondable and lead terminations are also available upon request.
Samples and production quantities of the enhanced PTN series devices are available now, with lead times of eight to 10 weeks for large orders. Pricing for U.S. delivery starts at $0.36 per piece in 1,000-piece quantities and varies by case size, TCR, and tolerance.
source: http://www.powerpulse.net/story.php?storyID=30993
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