Y40281K00000V0I

FSR (Secondary Standard Foil Resistor) Vishay Foil Resistors Bulk Metal® Foil Resistor Standard with TCR of 0.3 ppm/°C, High Stability and Accuracy for Laboratory Calibration Standards Direct Plug-In Device for Most DMM’S Available in the Market FEATURES • Temperature coefficient of resistance (TCR): To ±0.3 ppm/°C (+15°C to +45°C) (see Table 1) • Max TCR: 10 to 30 ppm window (see Figure 3) • Resistance range: 1Ω to 150 kΩ (for higher and lower values, please contact Applications Engineering) • Available up to six significant digits (e.g., 9K99962) • Resistance tolerance available for ordering: to ±0.005% (50 ppm) • High accuracy: to 10 ppm (see Table 1) INTRODUCTION • Stability: ±0.0005% (5 ppm) at 25°C, 12 months A manufacturer of the most precise production-size resistors available, Vishay Foil Resistors (VFR) has experienced the problems presented by virtually all available conventional and specialized secondary standards. Among these are: instrument accuracy, resistance shifts caused by load, temperature or environmental changes, difficulty in measurement of last digits, limitation on usable frequency, size and ease of setting. • No humidity effect: resistive element hermetically sealed against moisture From intensive analysis of these problems, VFR has developed a complete new design. With the unequalled combination of the Bulk Metal® Foil resistor’s performances, Vishay Foil resistors offer accuracy, stability and versatility never before combined in a secondary standard resistor. • Four terminal constructions with an additional ground socket The FSR reduces these major problems to insignificance: accuracy, resistance shift, frequency, and size. • Thermal stabilization time