1x VHP-4 0R7800 0.25% Hermetically Sealed Resistors Y00660R78000C0L

FEATURES 
Temperature Coefficient of Resistance
Nominal TCR3:
+ 0.6ppm/°C (0°C to + 25°C); – 0.6ppm/°C (+ 25°C to + 60°C);
+ 2.2ppm/°C (– 55°C to + 25°C); – 1.8 ppm/°C (+ 25°C to + 125°C)
Standard TCR Spread from Nominal
4:
± 1.5ppm/°C (0°C to + 25°C and + 25°C to + 60°C);
± 2.0ppm/°C (– 55°C to + 25°C and + 25°C to + 125°C)
Maximum TCR Spread from Nominal
5:
± 2.5ppm/°C (0°C to + 25°C and + 25°C to + 60°C);
± 2.3ppm/°C (– 55°C to + 25°C and + 25°C to + 125°C)
Selected TCR Tracking: 0.5ppm/°C
Load-Life Stability:
± 0.01% Max ∆R, 3 watts on heat sink at + 25°C, 2000 hrs.
± 0.05% Max ∆R, 10 watts on heat sink at + 25°C, 2000 hrs.
± 0.05% Max ∆R, 3 watts in still air at + 25°C, 2000 hrs.
Shelf Life Stability: 5ppm/year
Power Rating: 10 W, heat sink, + 25°C; 3 W, free air,+ 25°C
Resistance Tolerance (Initial Resistance Accuracy):
± 0.01% tightest to ± 5.0% loosest
Resistance Range: 0.05Ω to 80KΩ
Current Noise: < 0.010µV (RMS)/Volt of Applied Voltage
Thermal EMF: 0.1µV/°C (lead effect), 2.5µV/watt (power effect)
Non-Inductive Design: Standard

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