HomeCatalogue SearchCatalog StructureNewsletterUser AreaContact UsHelp
Smart Catalogue structure :: OEM Sensors And Components :: Resistor Products :: Fixed Resistors

Product Type Selection

OEM Sensors And Components - Resistor Products - Fixed Resistors


Selected familes applicable to instrumentation measurments.


Jump to family:

 Vishay VRM Series
 Vishay S102K series

Vishay VRM Series
The VRM style is a miniaturized version of the now famous S102C. It is made with a foil element so it retains all of the inherent performance of foil resistors. It does not, however, have the value range, power rating, TCR or lead spacing of the S102C. It is a size for size replacement for certain wirewounds and finds application in situations where size constraints dictate the use of this miniature precision resistor.
FEATURES
• Temperature Coefficient of Resistance:
4ppm/C (0C to + 60C); 8ppm/C (– 55C to + 125C)
(TCR to 5ppm/C ,– 55C to + 125C available.)
• Resistance Range: 5Ω to 50KΩ
• Tolerance:
5Ω to < 50Ω: 0.1%, 0.25%, 0.5%, 1.0%
50Ω to 50KΩ: 0.01%, 0.02%, 0.05%, 0.1%,
0.25%, 0.5%, 1.0%
• Power Rating: 0.25 W @ + 70C; 0.125 W @ + 125C
• Load Life Stability: 0.05% Maximum ∆R @ rated power
and temperature for 2,000 hrs.
• Non Inductive: < 0.08H
• Thermal EMF: < 0.1V/C
• Long Term Stability: 0.0025% (25ppm) per year under
low power and room temperature conditions
• Voltage Coefficient: < 0.1ppm/V
• Maximum Working Voltage: 250 volts
• Shelf Life: 0.0025% (25ppm) per year
1.VRM50R000,0.02% ... [more details]
Vishay VRM series, 50 ohm, tolerance 0.02%
2.VRM100R000,0.25% ... [more details]
Vishay VRM series, 100 ohm, tolerance 0.25%
3.VRM250R000,0.01% ... [more details]
Vishay VRM series, 250 ohm, tolerance 0.01%

Vishay S102K series
The "S" series of resistors and in particular the S102C is the starting point in the selection of foil resistors. Vishay has the longest history and most supporting data on this product. All other foil resistors are offshoots of this initial endeavor and provide unique features beyond the range of the "S" series.
FEATURES
• S102K Series Nominal Temperature Coefficient of Resistance:
– 0.3ppm/C (0C to + 25C); + 0.3ppm/C (+ 25C to + 60C); – 1.0ppm/C (– 55C to + 25C); +1.0ppm/C (+ 25C to + 125C)
• S102C Series Nominal Temperature Coefficient of Resistance:
+ 0.6ppm/C (0C to + 25C); – 0.6ppm/C (+ 25C to + 60C); + 2.2ppm/C (– 55C to + 25C); –1.8ppm/C (+ 25C to + 125C)
• Selected TCR Tracking: to 0.5 ppm/C (matched sets)
• Shelf Life Stability: 25ppm maximum for 1 year
• Power Rating: 0.6 to 2.0 Watts at + 70C; 0.3 to 1.0 Watts at + 125C (depending on model)
• Load Life Stability: 150ppm Maximum deltaR (2000 hours at rated power)
• Resistance Tolerance (Initial Resistance Accuracy):
0.005% tightest to 1.0% loosest (depends on resistor value)
• Resistance Range: 0.5W to 1MW
• Current Noise: 0.010mV (RMS)/Volt of Applied Voltage
• Thermal EMF: 0.1mV/C Maximum; 0.05mV/∞C Typical;
1mV/watt (Model S102C, S102K)
• Rise/Decay Time: 1.0 nanosecond @ 1KW
1.S102K100R000,0.01% ... [more details]
Vishay series S102K 100ohm, tolerance 0.01%, TC 0.3ppm/°C (0 to25°C)