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
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 |
