Alpha Electronics'

Over the past 20 years, Alpha Electronics' NiCr metal foil research has defined the state-of-the-art for ultra-precision "metal foil resistors".
We commonly work with 0.0025% resistance tolerances, TCR of 1 ppm/deg.C, and resistor stability of 25 ppm/year. We meet the demanding MIL-PRF-55182/9 and MIL-PRF-122/1 resistor specifications for military and space flight

Cutting-edge engineers require state-of-the-art resistors on time and within budget. Our wide range of resistors, from miniature SMD chips to power precision resistors as shown in the PRODUCT LINE, are available at an economical price with practical lead-times.
We will work with your unique technical requirements

http://www.alpha-elec.co.jp/english/eflash/index.html