Vishay Foil Resistors FRFC Series flip chip resistors

Vishay Foil Resistors has released the FRFC Series of ultrahigh-precision flip chip resistors based on Z1 Foil Technology. The series delivers load life stability of 50 ppm and has better withstanding to higher temperatures and better moisture resistance than previous generations. Compared with surface-mount chips with wraparound terminations, the flip chip configuration of the series provides PCB space savings of more than 35%.

Z1 Foil Technology is a solid alloy that is matched to the ceramic substrate with polyimide bonding to enable a uniform thickness of the bond line, high adhesion strength and improved resistance to moisture. Virtually insensitive to destabilising factors, the series features a TCR or ±0.2 ppm/°C (-55 to +125°C, +25°C ref), ESD immunity to 25 kV or more and noise-free operation. Its power rating is 750 mW at +70°C. The resistors are offered in the 0805, 1206, 1506, 2010 and 2512 case sizes, with power TCR (ΔR due to self-heating) of 5 ppm at rated power and tight tolerances to ±0.01%.

The resistors are optimised for a wide range of high-precision industrial, telecommunications, medical and laboratory applications, including bridge networks, gyro navigational controls, pressure sensors, standards and decade boxes, process controls, weighing systems, electron beams and automatic test equipment.