New Generation of Secondary Standards Hermetically Sealed High Precision Bulk
Metal® Foil Technology Resistors with TCR of ± 2 ppm/° C, Tolerance of ± 0.001 % and
Load Life Stability of ± 0.005 % (Metrology, Laboratory, Instrumentation, Industrial)

FEATURES
• Temperature coefficient of resistance (TCR):
± 2 ppm/° C typical (- 55 ° C to + 125 ° C, + 25 ° C
ref. ). For ultra high performances
(instrumentation and metrology) please refer to
the last page
• Resistance range: 5 Ω to 1.84 MΩ (higher or
lower values of resistance available)
• Vishay Foil resistors are not restricted to standard values;
specific “ as required” values can be supplied at no extra
cost or delivery (e. g. 1K2345 vs. 1K)
• Power rating: 0.3 W to 2.5 W at + 25 ° C (depending on
model - see table 2)
• Tolerance: to ± 0.001 % (10 ppm)
• Load life stability to ± 0.002 % (20 ppm) at 25 ° C, 2000 h
at rated power
• Load life stability can be considerably improved
through in-house stabilization
• Shelf life stability: ± 2 ppm for at least 6 years
(unaffected by humidity)
• Electrostatic discharge (ESD) up to 25 000 V
• Rise time: 1 ns effectively no ringing
• Thermal stabilization time < 1 s (nominal value achieved
within 10 ppm of steady state value)
• Current noise: 0.010 μ VRMS/V of applied voltage (< - 40 dB)
• Thermal EMF: 0.05 μ V/° C typical
• Voltage coefficient: < 0.1 ppm/V
• NonNon-inductive: < 0.08 μ H
• Non-inductive, non-capacitive design
• Non hot spot design
• Terminal finish available: lead (Pb)-free or tin/lead alloy
• Impervious to harmful environments - oil-filled
• Compliant to RoHS directive 2002/95/EC
• Prototype quantities available in just 5 working days