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Y0020100K250A9L Datasheet

Bulk Metal Foil Technology Industrial Precision Resistors

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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
- 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 to 1 MΩ (higher or RoHS*
lower values of resistance are available)
COMPLIANT
Resistance Tolerance: to ± 0.01 %
Load Life Stability: to ± 0.005 % at 70 °C, 2000 hours at
rated power
Electrostatic Discharge above 25 000 V
Non Inductive, Non Capacitive Design
Rise time: 1 ns without ringing
Current Noise: - 40 dB
Thermal EMF: 0.05 µV/°C typical
Voltage Coefficient: < 0.1 ppm/V
Inductance: 0.08 µH
Matched Sets Available
Terminal Finishes Available: Lead (Pb)-free
Tin/Lead Alloy
Any value available within resistance range (e.g. 1K234)
Prototype samples available from 48 hours. For more
information, please contact foil@vishay.com
For better performances please review the S Series
datasheet
Note
1. For values below 50 Ω please contact Application Engineering
APPLICATIONS
Industrial
Medical
Audio (high end stereo equipment)
Test and Measurement equipment
Precision Amplifiers
FIGURE 2 - TRIMMING TO VALUES
(Conceptual Illustration)
Interloop Capacitance
Reduction in Series
Mutual Inductance
Reduction due
to Change in
Current Direction
Current Path
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Note: Foil shown in black, etched spaces in white
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63009
Revision: 16-Jul-07
For any questions, contact: foil@vishay.com
www.vishay.com
1
Vishay Siliconix
Vishay Siliconix


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