VFCD1505 (Z-Foil)
Vishay Foil Resistors
High Precision Bulk Metal
®
Foil Surface Mount Voltage Divider,
TCR Tracking of < 0.5 ppm/°C, Tolerance Match of 0.01 %
and Stability of ± 0.005 % (50 ppm)
FEATURES
Temperature coefficient of resistance (TCR):
absolute: (table 1)
± 0.05 ppm/°C (typical 0 °C to + 60 °C)
± 0.2 ppm/°C (typical - 55 °C to + 125 °C,
+ 25 °C ref.)
Tracking: (table 1)
0.1 ppm/°C typical
Resistance range: 1K to 10K
Foil resistors are not restricted to standard values/ ratios,
specific “as required” values/ratios may be supplied at no
extra cost or delivery (e.g 2K234/5K456)
Power coefficient tracking: ”R due to self heating”
5 ppm at rated power
Short time overload: ± 0.005 %
Tolerance: absolute and resistance ratio: to 0.01 %
Load life stability (0.1 W at 70 °C, 2000 h)
Absolute: 0.01 %
Ratio: 0.005 %
Electrostatic discharge (ESD) up to 25 000 V
Power rating at 70 °C: entire package: 0.1 W, divided
between the two resistors proportionally to their value
Non-inductive, non-capacitive design
Thermal EMF: 0.05 µV/°C typical
Current noise: < - 40 dB
Rise time: 1 ns effectively no ringing
Non inductive: < 0.08 µH
Voltage coefficient: < 0.1 ppm/V
Non hot spot design
Compliant to RoHS directive 2002/95/EC
Terminal finish: lead (Pb)-free or tin/lead alloy
For better performances please contact us
Prototypes quantities available in just 5 working days
or sooner. For more information, please contact
foil@vishaypg.com
Bottom View
INTRODUCTION
Bulk Metal
®
Z-Foil (BMZF) technology out-performs all other
resistor technologies available today for applications that
require ultra high precision and ultra high stability.
The new Z-Foil technology provides a significant reduction
of the resistive element’s sensitivity to changes of
temperature due to ambient temperature variations (TCR)
and to self heating when power is applied (power
coefficient).
Model
VFCD1505
offers low TCR (both absolute and
tracking), excellent load life stability, tight tolerance,
excellent ratio stability, low thermal EMF and low current
noise, all in one package. 0.05 ppm/°C absolute TCR
removes errors due to temperature gradients.
The
VFCD1505
surface mount divider provides tight
tolerance matching and TCR tracking between 2 resistors
simultaneously etched on one piece of foil on a common
substrate. The electrical specifications of this integrated
construction offers improved performances and better real
estate utilization over discrete resistors and matched pairs.
Our application engineering department is available to
advise and make recommendations for non-standard
technical requirements and special applications, please
contact us.
FIGURE 1 - POWER DERATING CURVE
Percent of Rated Power
- 55 °C
100
75
50
25
0
- 75
+ 70 °C
APPLICATIONS
- 50
- 25
0
+ 25 + 50
+ 75 + 100 + 125 + 150 + 175
R
2
Ambient Temperature (°C)
FIGURE 2 -SCHEMATIC
R1
R2
Instrumentation amplifiers
Bridge networks
Differential amplifiers
Ratio arms in bridge circuits
Medical and test equipment
Military
Airborne etc.
R
1
Vin
-
Vout
+
VFCD1505
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63109
Revision: 25-Mar-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
1
VFCD1505 (Z-Foil)
Vishay Foil Resistors
TABLE 1 - RESISTANCE VALUES/RATIO AND TCR CHARACTERISTICS
POPULAR
VALUES
10K/10K
5K/5K
1K/1K
2K/2K
5K/10K
2.5K/10K
1K/9K
1K/10K
VCODES
V0001
V0002
V0004
V0059
V0005
V0060
V0056
V0064
± 0.2 ppm/°C
± 0.2 ppm/°C
± 1 ppm/°C
± 1 ppm/°C
0.4 ppm/°C
0.4 ppm/°C
1.0 ppm/°C
1.0 ppm/°C
0.01 %
0.02 %
± 0.2 ppm/°C
± 1 ppm/°C
0.1 ppm/°C
0.5 ppm/°C
0.01 %
ABSOLUTE TCR
(- 55 °C TO + 125 °C, + 25 °C REF.)
TYPICAL
MAXIMUM
TCR TRACKING
TYPICAL
MAXIMUM
TOLERANCE
MATCHING
Note
• Additional ratios are available. For the relevant VCODES for ordering, please contact application engineering using the footer below
TABLE 2 - TYPICAL PERFORMANCE SPECIFICATIONS
TEST
Thermal shock
Low temperature operation
Short time overload
High temperature exposure
Resistance to soldering heat
Moisture resistance
Load life (ratio stability)
Maximum working voltage for each element
Weight
Packaging
Note
(1)
R’s
plus additional 0.01
for measurement error
MIL-PRF-55342H CHARACTERISTIC E
R
LIMITS
(1)
0.10 %
0.10 %
0.10 %
0.10 %
0.20 %
0.20 %
-
22 V
10 mg
Waffle pack standard, tape and reel available
VFCD1505
RATIO
0.005 % (50 ppm)
0.005 % (50 ppm)
0.005 % (50 ppm)
0.01 % (100 ppm)
0.01 % (100 ppm)
0.005 % (50 ppm)
0.005 % (50 ppm)
FIGURE 3 - MODEL VFCD1505 DIMENSIONS AND LAND PATTERN
in inches (millimeters)
CHIP (BOTTOM VIEW)
D
D
D
RECOMMENDED LAND PATTERN
W
W1
X
L1
L
S
G
Z
S
L
W
D
L1
W1
±
0.005
(0.13)
±
0.005
(0.13)
±
0.003
(0.08)
±
0.003
(0.08)
±
0.005
(0.13)
THICKNESS
MAXIMUM
0.025
(0.64)
Z
G
S
X
±
0.003
(0.08)
±
0.003
(0.08)
±
0.003
(0.08)
±
0.003
(0.08)
0.150
(3.81)
Notes
0.050
(1.27)
0.015
(0.38)
0.144
(3.66)
0.043
(1.09)
0.147
(3.73)
0.111
(2.82)
0.046
(1.17)
0.046
(1.17)
• Avoid the use of cleaning agents which could attack epoxy resins, which form part of the resistor construction
• Vacuum pick up is recommended for handling
• Soldering iron is not applicable
www.foilresistors.com
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For any questions, contact:
foil@vishaypg.com
Document Number: 63109
Revision: 25-Mar-10
VFCD1505 (Z-Foil)
Vishay Foil Resistors
FIGURE 4 - TRIMMING TO VALUES
(conceptual illustration)
FIGURE 5 - TYPICAL RESISTANCE/
TEMPERATURE CURVE
(for more details see table 1)
+ 500
+ 400
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
+ 300
+ 200
+ 100
DR
0
R
(ppm)
- 100
- 200
- 300
- 400
- 500
- 55
- 25
0
+ 25
+ 60 + 75
+ 100 + 125
- 0.16 ppm/°C
Mutual Inductance
Reduction due
to Opposing
Current in
Adjacent Lines
0.05 ppm/°C
- 0.1 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
Note:
Foil shown in
black,
etched spaces in
white
Ambient Temperature (°C)
TABLE 3 - GLOBAL PART NUMBER INFORMATION
(1)
NEW GLOBAL PART NUMBER: Y1685V0001QQ9R (preferred part number format)
DENOTES PRECISION
Y
VCODE
(2)
RESISTANCE
VALUE CODE
TOLERANCE MATCH
T
= 0.01 %
Q
= 0.02 %
A
= 0.05 %
PACKAGING
R
= tape and reel
W
= waffle pack
Y
1
6
8
5
V
0
0
0
1
Q
Q
9
R
PRODUCT CODE
1685
= VFCD1505
ABSOLUTE TOLERANCE
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
CHARACTERISTICS
0
= standard product, tin/lead terminations
9
= standard product, lead (Pb)-free terminations
Other
= custom
FOR EXAMPLE: ABOVE GLOBAL ORDER Y1685 V0001 Q Q 9 R:
TYPE: VFCD1505
VALUES: 10K/10K
ABSOLUTE TOLERANCE: ± 0.02 %
TOLERANCE MATCH: 0.02 %
TERMINATION: lead (Pb)-free
PACKAGING: tape and reel
HISTORICAL PART NUMBER: VFCD1505 10K/10K TCR0.2 Q Q S T (will continue to be used)
VFCD1505
MODEL
VFCD1505
10K/10K
OHMIC VALUE
R
1
= 10 k
R
2
= 10 k
TCR0.2
TCR
CHARACTERISTIC
Q
ABSOLUTE
TOLERANCE
T
= ± 0.01 %
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
= ± 1.0 %
Q
TOLERANCE
MATCH
T
= 0.01 %
Q
= 0.02 %
A
= 0.05 %
S
TERMINATION
S
= lead (Pb)-free
B
= tin/lead alloy
T
PACKAGING
T
= tape and reel
W
= waffle pack
Notes
(1)
Application engineering release: for non-standard requests, please contact application engineering
(2)
For examples of VCODES see table 1
Document Number: 63109
Revision: 25-Mar-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
3
Legal Disclaimer Notice
Vishay Precision Group, Inc.
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in
any other disclosure relating to any product.
The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but
not limited to, the warranty expressed therein.
VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase.
To the maximum extent permitted by applicable law, VPG disclaims (i) any and all liability arising out of the
application or use of any product, (ii) any and all liability, including without limitation special, consequential or
incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose,
non-infringement and merchantability.
Information provided in datasheets and/or specifications may vary from actual results in different applications and
performance may vary over time. Statements regarding the suitability of products for certain types of applications
are based on VPG’s knowledge of typical requirements that are often placed on VPG products. It is the customer’s
responsibility to validate that a particular product with the properties described in the product specification is suitable for
use in a particular application. You should ensure you have the current version of the relevant information by contacting
VPG prior to performing installation or use of the product, such as on our website at vpgsensors.com.
No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any
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The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise
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Please contact authorized VPG 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.
Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
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