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300144ZTR2TCR0.2AQB

Description
Ultra High Precision Z-Foil Voltage Divider Resistors with TCR
File Size128KB,5 Pages
ManufacturerVishay
Websitehttp://www.vishay.com
Download Datasheet View All

300144ZTR2TCR0.2AQB Overview

Ultra High Precision Z-Foil Voltage Divider Resistors with TCR

300144Z, 300145Z (Z-Foil)
Vishay Foil Resistors
Ultra High Precision Z-Foil Voltage Divider Resistors with TCR
Tracking to 0.1 ppm/°C, Power Coefficient Tracking of 5 ppm
at Rated Power, and Tolerance Match to 0.005 % (50 ppm)
FEATURES
Temperature coefficient of resistance (TCR):
absolute:
Pb-free
Available
± 0.05 ppm/°C typical (0 °C to + 60 °C)
± 0.2 ppm/°C typical (- 55 °C to + 125 °C,
RoHS*
+ 25 °C ref.)
COMPLIANT
tracking: 0.1 ppm/°C typical
Tolerance: absolute and matching to 0.005 %
Power coefficient tracking “ΔR due to self heating”: 5 ppm
at rated power
Power rating: 0.2 W at 70 °C, for the entire resistive
element R1 and R2, divided proportionally between the
two elements
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
Non hot spot design
Terminal finishes available: lead (Pb)-free
tin/lead alloy
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 please contact us
Any value at any tolerance available within resistance range
INTRODUCTION
The 300144Z, 300145Z voltage dividers are the first choice
for ultra high precision, stability and reliable voltage division.
The Z-foil technology provides a significant reduction of the
resistive component’s sensitivity to ambient temperature
variations (TCR) and applied power changes (PCR).
0.05 ppm/°C absolute TCR removes errors due to
temperature gradients.
Models 300144Z and 300145Z offer low TCR (both absolute
and tracking), low power coefficient, excellent load life
stability, tight tolerance, excellent ratio stability, low thermal
EMF, low current noise and non sensitivity to ESD - all in one
package.
Model 300145Z is a pair-of 300144Z elements back to back
in a single molded package.
IM
PR
O
VE
D
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.
Our application engineering department is available to
advise and make recommendations. For non-standard
technical requirements and special applications. Please
contact us.
TABLE 1 - MODELS 300144Z AND 300145Z SPECIFICATIONS
MODEL
RESISTANCE
RATIO
1.1
4:1
10:1
> 10:1
ABSOLUTE TCR
(- 55 °C to + 125 °C, + 25 °C Ref.)
TYPICAL AND MAX. SPREAD
TCR TRACKING
TYPICAL
0.1 ppm/°C
0.5 ppm/°C
0.5 ppm/°C
0.5 ppm/°C
MAX.
0.5 ppm/°C
0.8 ppm/°C
1.0 ppm/°C
1.5 ppm/°C
TOLERANCE
ABSOLUTE
± 0.005%
± 0.005%
± 0.01%
± 0.01%
MATCH
0.005%
0.005%
0.01%
0.01%
300144Z
300145Z
± 0.2 ppm/°C ± 1.8 ppm/°C
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63115
Revision: 21-Nov-07
For any questions, contact: foil@vishay.com
www.vishay.com
1
PR
O
DU
CT
APPLICATIONS
Instrumentation amplifiers
R
2
R
1
Bridge networks
V
Differential amplifiers
Military
V
Space
Medical
Automatic test equipment
Down-hole (high temperature)
1
-
R
1
R
2
+
V
out
300144Z
300145Z
2
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