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.
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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
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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
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)
FIGURE 1 - TRIMMING TO VALUES
(conceptual illustration)
Interloop Capacitance
Reduction in Series
Current Path
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Mutual Inductance
Reduction due
to Change in
Current Direction
Note:
Foil shown in
black,
etched spaces in
white
FIGURE 2 - STANDARD PRINTING AND DIMENSIONS
in inches (millimeters)
Model 300144Z and Schematic
2)
0.295
(7.49)
VISHAY
9825
300144Z
0.1
(2.54)
Match
Tolerance
10K000
0.01
%
10K000
0.375
(9.53)
5
0.2
(5.08)
Date Code
Model
No.
0.015 ± 0.005
(0.38 ± 0.13)
0.025 ± 0.005
(0.64 ± 0.13)
0.320
(8.13)
R1
R2
1
Low
Resistance
Value
Indicator
1
2
3
Date Code
Model
No.
VISHAY
9825
300145Z
0.375
(9.53)
0.015 ± 0.005
(0.38 ± 0.13)
10K000
0.01
%
10K000
0.75
(19.05)
1)
1
2
3
Tolerance: ± 0.010" (0.25)
0.1 (2.54)
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1. Lead
wires:
#22 AWG solder coated copper,
0.75" minimum length
2. Each resistor contains 1 chip of two resistive
elements
FIGURE 3 - POWER DERATING CURVE
300144Z, 300145Z
Percent of Rated Power at + 125 °C
200
%
175
%
150
%
125
%
100
%
- 55 °C
+ 70 °C
Double Rated Power
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)
Note:
Power is proportional to the divider ratio
Example: In a 300144Z (1K/10K dual), the power rating would be
18 mW on the 1K and 182 mW on the 10K, for a total of 200 mW on
R1 + R2.
R1
R2
P
P1 = R1 + R2
P2 = R1 + R2 P
(
)
(
)
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Model 300145Z and Schematic
2)
4
6
6
5
4
R2
R1
R1
R2
0.025 ± 0.005
(0.64 ± 0.13)
0.75
1)
(19.05)
Match
Tolerance
1
2
3
1
2
3
0.1 (2.54)
FIGURE 4 - TYPICAL TCR CURVE Z-FOIL
(for more details see table 1)
+ 500
+ 400
+ 300
+ 200
+ 100
ΔR
0
R
(ppm)
- 100
- 200
- 300
- 400
- 500
- 55
- 25
0
+ 25
+ 60 + 75
+ 100 + 125
- 0.16 ppm/°C
0.05 ppm/°C
- 0.1 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
Ambient Temperature (°C)
Document Number: 63115
Revision: 21-Nov-07
300144Z, 300145Z (Z-Foil)
Ultra High Precision Z-Foil Voltage Divider Resistors with TCR
Vishay Foil Resistors
Tracking to 0.1 ppm/°C, Power Coefficient Tracking of 5 ppm
at Rated Power, and Tolerance Match to 0.005 % (50 ppm)
TABLE 2 - GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBER: Y1691V0058QT9L (preferred part number format)
DENOTES PRECISION
Y
VCODE
RESISTANCE
VALUE CODE
TOLERANCE MATCH
V
= 0.005 %
T
= 0.01 %
Q
= 0.02 %
A
= 0.05 %
B
= 0.1 %
D
= 0.5 %
F
= 1.0 %
PACKAGING
L
= bulk pack
Y
1
6
9
1
V
0
PRODUCT CODE
1691
= 300144Z
1735
= 300145Z
RESISTANCE TOLERANCE
V
= ± 0.005 %
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
D
= ± 0.5 %
F
= ± 1.0 %
FOR EXAMPLE: ABOVE GLOBAL ORDER Y1691 V0058 Q T 9 L:
TYPE: 300144Z
VALUES: 2K/20K
ABSOLUTE TOLERANCE: ± 0.02 %
TOLERANCE MATCH: 0.01 %
TERMINATION: lead (Pb)-free
PACKAGING: bulk pack
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HISTORICAL PART NUMBER: 300144ZT 2K/20K TCR0.2 Q T B (will continue to be used)
300144Z
MODEL
T
2K/20K
TCR0.2
Q
ABSOLUTE
TOLERANCE
V
T
Q
A
B
D
F
= ± 0.005 %
= ± 0.01 %
= ± 0.02 %
= ± 0.05 %
= ± 0.1 %
= ± 0.5 %
= ± 1.0 %
T
TOLERANCE
MATCH
V
= 0.005 %
T
= 0.01 %
Q
= 0.02 %
A
= 0.05 %
B
= 0.1 %
D
= 0.5 %
F
= 1.0 %
B
PACKAGING
B
= bulk pack
TERMINATION
OHMIC VALUE
R
1
= 2 kΩ
R
2
= 20 kΩ
TCR
CHARACTERISTIC
300144Z
300145Z
T
= lead (Pb)-free
None
= tin/lead alloy
Note
* For non-standard requests, please contact application engineering.
Document Number: 63115
Revision: 21-Nov-07
For any questions, contact: foil@vishay.com
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0
5
8
Q
T
9
L
AER*
0
= standard
9
= lead (Pb)-free
1 - 999
= custom
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3
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)
TABLE 3 - RESISTANCE VALUE CODE LIST FOR POPULAR RATIOS
(other values available on request)
300144Z RATIOS
VCODES
V0009
V0010
V0100
V0055
V0223
V0097
V0001
V0042
V0006
V0226
V0003
V0013
V0107
V0014
V0005
V0002
V0026
V0058
V0030
R1
20K
20K
20K
19K4
17K5
15K
10K
10K
10K
9K
9K
8K
6K
6K
5K
5K
3K
R2
20K
10K
2K
9K7
20K
15K
10K
8K323
2K
10K
1K
16K
20K
7K
10K
5K
19K2
20K
18K
4K
VCODES
V0008
V0019
V0092
V0023
V0047
V0051
V0227
R1
10K
5K
300145Z RATIOS
R2
10K
5K
R3
10K
5K
R4
10K
5K
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2K
2K
V0029
V0032
2K
1K
16K
1K
V0004
V0022
1K
511R
16K2
V0061
300R
300R
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1K
7K812
500R
8K8
7K812
500R
1K
500R
500R
8K8
100R
100R
100R
350R
10K
100R
10K
350R
350R
350R
Document Number: 63115
Revision: 21-Nov-07
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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