Malvern, Pa. Available in industry standard case sizes as small as 0402, Vishay Intertechnology's new FC series of high-frequency chip resistors avoid roll-off at frequencies above 100 MHz, and offer TCR values as low as ±25 ppm/°C.
Available in industry standard case sizes including 1206, 1005, 0805, 0603, 0505, and 0402, FC series chip resistors eliminate the need for customizing high-frequency devices or for tuning circuits to the appropriate frequency, said the company. As a result, designers have greater flexibility in choosing an off-the-shelf, easy-to-integrate solution that meets the performance demands of high-frequency circuitry. Vishay provides high-frequency performance data on the FC product datasheet to help designers choose the best component for their designs.
Designed with low internal reactance, as represented by the capacitance and inductance of the terminations and substrate, the FC resistor chips function over a very high frequency range. A special laser edge-trimming process allows for precision tolerances down to 0.1%. Resistance values range from 10 ohms to 1000 ohms, depending on case size. Low TCR values are available down to ±25 ppm/°C for devices with resistance ratings greater than 50 ohms.
Representing an industry-first capability for this type of device, the FC chip resistors are designed for use in low-noise amplifiers, precision voltage dividers, attenuation circuitry, and line termination applications in fixed telecom and military/aerospace systems requiring fast-response, and high-frequency circuitry.
Each chip resistor features a high-purity (99.6%) alumina substrate and a passivated nichrome resistive layer. Terminations are comprised of gold or SN 60 solder over a nickel barrier. All of these devices are rated for stability of 500 ppm/°C over 2000 hours at 70°C. The operating temperature range is -55°C to 125°C.
Pricing for U.S. delivery is $0.70 in quantities of 1,000. Samples and production quantities are available now, with a lead time of eight weeks for large orders.
Call (610) 644-1300