300144, 300145
Vishay Foil Resistors
High Precision Voltage Divider Resistors
with TCR Tracking to 0.5 ppm/°C and
Tolerance Match to 0.005 % (50 ppm)
FEATURES
• Temperature coefficient of resistance (TCR):
absolute:
2 ppm/°C typical (- 55 °C to + 125 °C,
+ 25 °C ref.)
tracking: 0.5 ppm/°C
Pb-free
Available
RoHS*
COMPLIANT
• Tolerance: absolute and matching to 0.005 %
• Power rating: 0.2 W at 70 °C, for the entire resistive
element R1 and R2, divided proportionally between the
two elements
Any value at any ratio available within resistance range
• Ratio stability: < 0.001 % (10 ppm) 0.2 W at 70 °C for
2000 h
• Maximum working voltage: 200 V
• Electrostatic discharge (ESD) 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
• Non inductive: < 0.08 µH
INTRODUCTION
Vishay Bulk Metal® foil technology outperforms all other
technologies available today for applications that require
high precision and high stability.
Models 300144 and 300145 offer low TCR (both absolute
and tracking), excellent load life stability, tight tolerance,
excellent ratio stability, low thermal EMF, low current noise
and non sensitivity to ESD - all in one package.
• Non hot spot design
• Terminal finishes available: lead (Pb)-free
Model 300145 is a pair-of 300144 elements back to back in
a single molded package.
tin/lead alloy
By taking advantage of the overall stability and reliability of
Vishay Bulk Metal foil resistors, designers can significantly
reduce circuit errors and greatly improve overall circuit
performances.
• Any value available within resistance range (e.g. 1K2345)
• Prototype samples available from 48 h. For more
information, please contact foil@vishay.com
• For better performances see 300144Z, 300145Z (Z-Foil)
datasheet
Our application engineering department is available to
advise and make recommendations. For non-standard
technical requirements and special applications. Please
contact us.
APPLICATIONS
• Instrumentation amplifiers
R
2
• Bridge networks
• Differential amplifiers
• Military
R
1
1
V
1
2
-
V
out
+
V
R
300144
300145
• Space
R
2
• Medical
• Automatic test equipment
• Down-hole (high temperature)
TABLE 1 - MODELS 300144 AND 300145 SPECIFICATIONS
ABSOLUTE TCR
(- 55 °C to + 125 °C, + 25 °C Ref.)
TOLERANCE
RESISTANCE
MODEL
TCR TRACKING
RATIO
TYPICAL AND MAX. SPREAD
ABSOLUTE
MATCH
1:1
4:1
10:1
0.5 ppm/°C
1.0 ppm/°C
1.0 ppm/°C
1.5 ppm/°C
0.005%
0.005%
0.01%
0.01%
0.005%
0.005%
0.01%
0.01%
300144
300145
2 ppm/°C 3 ppm/°C
> 10:1
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63045
Revision: 21-Nov-07
For any questions, contact: foil@vishay.com
www.vishay.com
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