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300190Z Datasheet(PDF) 1 Page - Vishay Siliconix

Part No. 300190Z
Description  Ultra High Precision Z-Foil Voltage Divider and Network Resistor with TCR Tracking to 0.1 ppm/°C and Resistance Match to ± 0.005% (50 ppm)
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Maker  VISHAY [Vishay Siliconix]
Homepage  http://www.vishay.com
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300190Z Datasheet(HTML) 1 Page - Vishay Siliconix

   
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2R, 3R, 4R (Z-Foil Technology)
Vishay Foil Resistors
Ultra High Precision Z-Foil Voltage Divider and Network Resistor with
TCR Tracking to 0.1 ppm/°C and Resistance Match to ± 0.005% (50 ppm)
www.vishay.com
For technical questions, contact: foil@vishay.com
Document Number: 63114
1
Revision: 08-Aug-06
SALES
• 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
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• ISRAEL: foilsales.israel@vishay.com
FEATURES
• Resistance Range each resistor: 1Ω to 150KΩ
(Any ohmic value ratio is available within
resistance range)
• Non Inductive/Capacitive design
• Low Temperature Coefficient of Resistance
(TCR) Absolute:
± 0.05 ppm/°C (Industrial range)
± 0.2 ppm/°C (MIL range), Tracking 0.1 ppm/°C
• Power Coefficient “ΔR due to self heating”: 5 ppm at rated
power
• Tolerance: Absolute and Resistance Match to 0.005%
• Resistance Ratio Stability: at 0.05W @ + 25°C to 0.001%
• Electrostatic Discharge (ESD) above 25 000 Volts
• Short time overload ≤ 0.002%
• Power Rating at + 125°C: 0.3W
• Thermal EMF: 0.05µV/°C
• Non hot spot design
• Current Noise: < - 40dB
• Rise time: 1ns without ringing
• Non Inductive: < 0.08µH
• Voltage Coefficient < 0.1 ppm/V
• For better performances please contact us
• Terminal Finishes available:
Lead (Pb)-free
Tin/Lead Alloy
RoHS
COMPLIANT
Any value at any tolerance available within resistance range
INTRODUCTION
The 2R, 3R, 4R Resistor Networks are the designers first
choice for ultra high precision, stable and reliable
Voltage Divider or Network.
The Z-Foil Technology provides a significant reduction of the
resistive components sensitivity to ambient temperature
variations (TCR) and applied power changes, self-heating
(PCR). 0.05 ppm/°C Absolute TCR removes errors due to
temperature gradients.
The 2R, 3R, 4R provide a unique, inherent combination
of
performance
characteristics
resulting
in
excellent
performance and high reliability, satisfying the needs of
today’s expanding requirements.
The availability of low absolute TCR and low PCR, provides a
good cost solution for the variability of other components
when compiling the total error budget.
Our Application Engineering Department is available to
advise and to make recommendations for non-standard
technical requirements and special applications, please do
not hesitate to contact us.
FIGURE 1 - POWER DERATING CURVE
FIGURE 2 - TYPICAL TCR CURVE Z-FOIL
200%
175%
150%
125%
100%
75%
50%
25%
0
- 75
- 50
- 25
0
+ 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200
Ambient Temperature (°C)
- 55°C
+ 70°C
Double Rated Power
Rated Power
Safe operation
for < 150 ppm
ΔR after 2000
hours load-life
+ 500
+ 200
+ 100
0
- 100
- 200
- 300
- 500
- 55
- 25
+ 25
+ 60
+ 75
+ 100
+ 125
Ambient Temperature (°C)
ΔR
R
(ppm)
0
0.05 ppm/°C
- 0.1 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
- 0.16 ppm/°C
- 400
+ 300
+ 400
APPLICATIONS
• Instrumentation Amplifiers
• Bridge Networks
• Differential Amplifiers
• Military, Airborne and Space
• EB Applications
• Down-Hole (high temperature)
• Medical
• Automatic Test Equipment (ATE)
FIGURE 3 - TRIMMING TO VALUES
CONCEPTUAL ILLUSTRATION)
Current Path
After Trimming
Current Path
Before 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


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