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Established Reliability (ER)
The RNC90Y established reliability resistor has been the benchmark for high precision established reliability discrete resistors since 1982. In 2000, we achieved a technological breakthrough with the introduction of the Z201 resistor with a TCR of 0.2 PPM/°C. This breakthrough has allowed Vishay Precision Group to introduce the RNC90Z established reliability “R” level resistor, with a TCR limit of ± 2ppm/°C over the extended range of - 55°C to + 175°C, this being a significant improvement over the existing RNC90Y’s ± 5ppm/°C TCR specification.
Model Failure Rate Mil Spec No. Resistance Range (Ω) TCR (-25°C To +125°C Ref) Absolute Tolerance Termination Type
RNC90Y LEVEL R MIL PRF 55182/9 4R99-121K ±5 ppm/°C 0.005% Lead
RNC90T*
RNC90Z 30R1-121K ±2 ppm/ºC 0.005%
RNC90S*
*0.200” lead spacing
QPL
Vishay Foil resistors Models 1445Q and 1446Q networks are qualified to MIL-PRF-83401, Characteristic C,
Schematic A. Actual performance exceeds all the requirements of MIL-PRF-83401 characteristics “C.”
Model Mil Spec No. Resistance Range (Ω) TCR (-25°C To +125°C Ref) Absolute Tolerance Termination Type
1445Q MIL PRF 83401 100R-10K 100R -1K :±10 ppm/ºC1K - 10K:±5 ppm/ºC 0.1% 14 Pin DIP
1446Q 16 Pin DIP
Vishay Foil resistors model RJ26 Precision Trimming ¼ inch Potentiometer is qualified to Mil-PRF-22097
Model Mil Spec No. Resistance Range (Ω) TCR (-25°C To +125°C Ref) Absolute Tolerance Setability Termination Type
RJ26 MIL PRF 22097 50R,100R,200R,500R,1K,2K,5K ±25 ppm/°C 10% 0.05% Leaded
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Fri Feb 03 2012
Co. works on gain control operational amp 4 test equip project used 4 testing semiconductor chips. Solution? VHD200 http://t.co/3bonVZEn
Thu Feb 02 2012
Aerospace project 4 strain measurement landing gear needs low TCR tracking, good common mode rejection. Solution: DSMZ http://t.co/GTUNGbSW
Wed Feb 01 2012
Medical sector requires special customer oriented resistance configuration for differential amplifier. Solution? SMN http://t.co/Fi3qNJtZ
Tue Jan 31 2012
Scientific co. works on #seismic sensors project for undersea sensor gain control op amp. Solution? VFCD http://t.co/PhF9txec
Mon Jan 30 2012
A GPS clock project needs hi-stability & superior tracking 4 analog-digital convertor voltage ref. Solution? 300144Z http://t.co/Xm0DnznL
Fri Jan 27 2012
Aero co. looking 4 tight TCR track & long-term stability of ratio 4 their fuel control differential amp. Solution? SMNZ http://t.co/KGZzpICp
Thu Jan 26 2012
Instrumentation co. needs resistors w/low TCR tracking & tight tolerance 4 voltage calibrator project. Solution? VHD200 http://t.co/3bonVZEn
Wed Jan 25 2012
Sci-instrumentation co. requires best tracking & stability 4 differential amp 4 earthquake detection. Solution? VFD224 http://t.co/lpaIHhm2
Tue Jan 24 2012
Co. requires low TCR tracking & high stability 4 a differential amplifier for strain gage instrument. Solution? DSMZ: http://t.co/95N7Rj6y
Mon Jan 23 2012
Reliability: in practice, the mean time between failures (MTBF) http://t.co/nEmDaD9B #VFRGlossary

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