Malvern, Pa. Vishay Intertechnology, Inc. has expanded its CTN series of 30 mil center-tapped nichrome chip resistors with new devices that offers a low absolute TCR of ±10 ppm/°C over the full -55°C to 125°C temperature range. Available in a compact 0.030 x 0.030 inch chip size, the resistors also offer excellent stability at 250 mW power levels.
The new CTN resistor chips from Vishay Electro-Films offer designers a flexible solution for applications requiring a much tighter TCR spread between resistors at different positions in a hybrid assembly. Designed primarily for use in feedback circuits in amplifiers requiring ratio matching, high power, and tracking between two resistors, the CTN resistors are capable of operating as a single-value resistor or as two resistors with a center tap feature. Six gold bonding pads serve to increase possible layout configurations.
The total resistance for the new ±10 ppm/°C CTN resistors ranges from 1 koΩ to 1 MΩ with standard tolerances down to 0.1%. TCR tracking between halves is ±2 ppm/°C, and the center tap ratio is 1±1% standard. An oxidized silicon substrate provides good power dissipation, said the company.
The CTN resistors are 100% electrically tested and visually inspected to Mil-Std-883. Custom networks built on Vishay's proprietary thin film technology are also available with TCR values of ±0 ppm/°C.
CTN chip resistor prices for U.S. delivery start at $0.75 in quantities of 1,000. Samples and production quantities are available now with a delivery of eight weeks for larger
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