Bulk Metal Foil Technology Industrial Precision Resistors - Vishay Siliconix
Description
VSR Series
Vishay Foil Resistors
Bulk Metal® Foil Technology Industrial Precision Resistors with TCR of ± 4 ppm/°C and Tolerance of ± 0.
01 %
Any value at any tolerance available with resistance range
INTRODUCTION
Bulk Metal® Foil Technology out performs all other resistor technologies available today for applications that require high precision and high stability.
This technology has been pioneered and developed by VISHAY, and products based on this technology are the most suitable for a wide range of applications.
Generally Bulk Metal® Foil technology allows us to produce customer orientated products designed to satisfy challenging and specific technical requirements.
The VSR series of resistors is a low cost version of the well established S-Series of resistors.
These resistors are made of foil elements so all of the inherent performance of foil is retained.
They do not however, have the same TCR or tolerance ranges (see table 1 for details).
These products find a wide range of usage in high end stereo equipment and some grades of test and measurement equipment.
Standoffs are dimensioned to provide a minimum lead clearance of 0.
010 inches between the resistor body and the printed circuit board, when the standoffs are seated on the board.
This allows for proper cleaning after the soldering process.
Our Applications Engineering Department is available to advise and to make recommendations for non standard technical requirements and special applications, please contact us.
FIGURE 1 - POWER DERATING CURVE
Percent of Rated Power at + 125 °C
- 55 °C 200 % 175 %
+ 70 °C Double Rated Power
150 %
125 % 100 %
Rated Power
75 % 50 % 25 %
Safe operation
for < 150 ppm ∆R after 2000 hours load-life.
0 - 75 - 50 - 25
0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200
Ambient Temperature (°C)
FEATURES
• Temperature Coefficient of Resistance (TCR)1): ± 4 ppm/°C (0 °C to + 60 °C) ± 8 ppm/°C (- 55 °C to + 125 °C, + 25 °C Ref.
)
Pb-free Available
• Resistance Range: 0.
5 Ω t...
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