VSR Series
Vishay Foil Resistors
Bulk Metal® Foil Technology
Industrial Precision Resistors
FEATURES
• Temperature Coefficient of Resistance (TCR)*:
± 4ppm/°C (0°C to + 60°C, + 25°C Ref.)
± 8ppm/°C (– 55°C to + 125°C, + 25°C Ref.)
• Resistance Range: 0.5Ω to 1MΩ
Noise Free
Component
• Resistance Tolerance: to ± 0.01%
• Long Term Stability: Typical Foil Performance
THROUGH HOLE
• Very Low Current Noise: - 40 dB
INTRODUCTION
• Non Inductive: 0.08µH Typical
Bulk Metal® Foil Technology out performs all other resistor
technologies available today for applications that require high
precision and high stability.
• Low Thermal EMF: 0.05µV/°C Typical
• Low Voltage Coefficient: < 0.1ppm/V
• Matched Sets Available
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.
• Terminal Finishes Available:
Lead (Pb)-free (100% Sn)
Tin/Lead Alloy (Sn 60%, Pb 40%)
Generally Bulk Metal® Foil technology allows us to produce
customer orientated products designed to satisfy challenging
and specific technical requirements.
* For values below 50Ω please contact Application Engineering
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.
APPLICATIONS
• Industrial
• Medical
• Audio (high end stereo equipment)
• 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**.
• Precision Amplifiers
Our Applications Engineering Department is prepared to
advise and to make recommendations for non standard
technical requirements and special applications, please
contact us.
FIGURE 1 - IMPRINTING AND DIMENSIONS
Rear View
Front View
L
H
W
VISHAY
XXXX
VSR4
Resistance
Value Code
Date Code
01
10
Year Week
100R01
0.01%
Tolerance
ST**
Model Number
LS
Lead Material #22 AWG
Round Solder Coated Copper
SW
LL
SALES
• ISRAEL: foilsales.israel@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• AMERICAS: foilsales.usa@vishay.com
• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com
www.vishay.com
136
For technical questions in the Americas, contact foilsupport1@vishay.com
Document Number: 63009
For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com
Revision 31-Jan-05
