DSMZ (Z-Foil)
Vishay Foil Resistors
Ultra High Precision Bulk Metal
®
Z-Foil Surface Mount Voltage
Divider, TCR Tracking of < 0.1 ppm/°C, PCR of ± 5 ppm
at Rated Power and Stability of ± 0.005 % (50 ppm)
FEATURES
INTRODUCTION
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TABLE 1 - RESISTANCE VALUES AND
TOLERANCES
(1)
RESISTANCE VALUES
ABSOLUTE TOLERANCE
EACH RESISTOR
RESISTANCE
TOLERANCE MATCH
TCR
± 0.02 %, ± 0.05 %, ± 0.1 %
0.01 %, 0.02 %, 0.05 %
100
to 10 k per resistor
(2)
Bulk Metal
®
Z-Foil technology out-performs all other resistor
technologies available today for applications that require
ultra-high precision and ultra-high stabilitly.
The Z-Foil technology provides a significant reduction of the
resistive element’s sensitivity to ambient temperature
variations (TCR) and to self heating when power is applied
(power coefficient).
The DSMZ offers low TCR (both absolute and tracking), low
PCR, excellent load life stability, tight tolerance match,
excellent ratio stability, low thermal EMF, and low current
noise - all in one package.
The
DSMZ
surface mount divider provides a matched pair of
Bulk Metal
®
Z-Foil resistors in a small epoxy molded
package. The electrical specification of this integrated
construction offers improved performance 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.
- 55 °C to + 125 °C
(+ 25 °C reference)
Notes
(1)
Tighter performances are available
(2)
100
to 12 k per resistor available in DSM
FIGURE 1 - SCHEMATIC
R
1
R
2
Percent of Rated Wattage
Absolute: (typical and maximum
spread): ± 0.2 ± 2.0 ppm/°C
Tracking: (maximum)
For R1/R2 = 1
0.5 ppm/°C
For 1 < R1/R2
10
1.0 ppm/°C
For 10 < R1/R2
100 2.0 ppm/°C
OPTION 1
SAME OHMIC VALUE,
SAME ABSOLUTE TOLERANCE
OPTION 2
RESISTOR PAIR
R
1
/R
2
- DIFFERENT VALUES
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63121
Revision: 25-Mar-10
For any questions, contact:
foil@vishaypg.com
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Temperature coefficient of resistance (TCR):
Absolute: ± 0.05 ppm/°C typ. (0 °C to + 60 °C)
± 0.2 ppm/°C typ. (- 55 °C to + 125 °C, + 25 °C Ref.)
Tracking: 0.1 ppm/°C typical
Power coefficient tracking
“R due to self heating”: ± 5 ppm at rated power
Power rating at 70 °C: entire package: 0.1 W,
each resistor: 0.05 W
Tolerance: absolute: ± 0.02 %; match: 0.01 %
Ratio stability: 0.005 % (0.05 W at 70 °C, 2000 h)
Resistance range: 100
to 10 k per resistor
Large variety of resistance ratios: 1:100
Foil resistors are not restricted to standard values/ ratios;
specific “as required” values/ratios can be supplied at no
extra cost or delivery (e.g. 1K234/2K345 vs. 1K/2K)
Electrostatic discharge (ESD) up to 25 000 V
Short time overload
0.005 %
Non-inductive, non-capacitive design
Rise time: 1 ns effectively no 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
Terminals: silver coated copper alloy
Compliant to RoHS directive 2002/95/EC
Prototype quantities available in just 5 working days
or sooner. For more information, please contact
foil@vishaypg.com
For better performances, please contact application
engineering
R
2
APPLICATIONS
Instrumentation amplifiers
Bridge networks
Differential amplifiers
Ratio arms in bridge circuits
Medical and test equipment
Military
Airborne etc.
R
1
Vin
-
Vout
+
DSMZ
FIGURE 2 - POWER DERATING CURVE
110
100
90
80
70
60
50
40
30
20
10
0
- 60 - 40
- 55
- 20
0
20
40
60
70
80
100
120 140
125
Ambient Temperature (°C)
DSMZ (Z-Foil)
Vishay Foil Resistors
FIGURE 3 - TRIMMING TO VALUES
(Conceptual Illustration)
FIGURE 4 - TYPICAL RESISTANCE/
TEMPERATURE CURVE
(For more details, see table 1)
+ 500
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 5 - DIMENSIONS AND IMPRINTING
SIDE VIEW
H
w
t
P
P
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BOTTOM VIEW
TW
STAND OFF
Note:
R1 - between PIN1 and PIN3
R2 - between PIN2 and PIN3
DIMENSIONS
INCHES
L
W
H
0.160 ± 0.008 0.106 ± 0.008 0.063 ± 0.008 0.031 ± 0.005 0.031 ± 0.004 0.043 ± 0.008 0.100 ± 0.008 0.005 ± 0.002
4.06 ± 0.20
2.69 ± 0.20
1.60 ± 0.20
0.79 ± 0.13
0.79 ± 0.10
1.09 ± 0.20
2.54 ± 0.20
0.13 ± 0.05
MILLIMETERS
FIGURE 6 - RECOMMENDED LAND PATTERN
0.063 ± 0.004
(1.6 ± 0.1)
0.040 ± 0.004
(1.02 ± 0.1)
0.035 ± 0.004
(0.89 ± 0.1)
0.100 ± 0.004
(2.54 ± 0.1)
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0.071 ± 0.004
(1.8 ± 0.1)
0.100 ± 0.004
(2.54 ± 0.1)
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+ 400
+ 300
+ 200
+ 100
ΔR
0
R
(ppm)
- 100
- 200
- 300
0.05 ppm/°C
- 0.1 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
- 400
- 0.16 ppm/°C
0.2 ppm/°C
- 500
- 55
- 25
0
+ 25
+ 60 + 75 + 100 + 125
Ambient Temperature (°C) and TCR Chord Slopes for
Different Temperature Ranges
FRONT VIEW
L
TH
TW
TW
S
TOP VIEW
VALUE R1
RATIO TOLERANCE CODE
3
VALUE R2
10K Q 10K
V B0219
1
DATE CODE
2
P
TW
TH
S
t
Document Number: 63121
Revision: 25-Mar-10
DSMZ (Z-Foil)
Vishay Foil Resistors
TABLE 2 - PERFORMANCE SPECIFICATIONS
(Test Method Per MIL-PRF-914)
SPECIFICATIONS
Power rating
at 70 °C
Entire package: 0.1 W
TYPICAL LIMITS
Maximum Working Voltage
(each resistor)
Working Temperature Range
Thermal Shock
25 x (- 65 °C to + 125 °C)
Thermal Shock
5 x (- 65 °C to + 125 °C) and
Power Conditioning
1.5 rated power at 25 °C, 100 hours
DWV
atmospheric pressure, 200 V (A.C.), 1 minute
Insulation Resistance
100 V (D.C.), 1 minute
Resistance to Soldering Heat
Moisture Resistance
+ 65 °C to - 10 °C; 90 % to 98 % RH; 0.1 x rated power, 240 hours
Shock (Specified Pulse)
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100 G
Vibration, High Frequency
(10 Hz - 2000 Hz), 20 G
High Temperature Exposure
100 hours at 125 °C
Low Temperature Storage
24 hours at - 65 °C
Load Life Stability
2000 hours at + 70 °C; rated power
Short Time Overload
6.25 x Rated Power; 5 seconds
Low Temperature Operation
Weight
Document Number: 63121
Revision: 25-Mar-10
For any questions, contact:
foil@vishaypg.com
PR
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25 V
- 65 °C to + 125 °C
R
= 0.01 % (100 ppm)
Ratio
= 0.005 % (50 ppm)
R
= 0.015 % (150 ppm)
Ratio
= 0.01 % (100 ppm)
Successfully passed
> 10
4
M
R
= 0.01 % (100 ppm)
Ratio
= 0.005 % (50 ppm)
R
= 0.02 % (200 ppm)
Ratio
= 0.005 % (50 ppm)
R
= 0.005 % (50 ppm)
Ratio
= 0.0025 % (25 ppm)
R
= 0.01 % (100 ppm)
Ratio
= 0.005 % (50 ppm)
R
= 0.01 % (100 ppm)
Ratio
= 0.005 % (50 ppm)
R
= 0.005 % (50 ppm)
Ratio
= 0.005 % (50 ppm)
R
= 0.005 % (50 ppm)
Ratio
= 0.005 % (50 ppm)
R
= 0.005 % (50 ppm)
Ratio
= 0.0025 % (25 ppm)
R
= 0.005 % (50 ppm)
Ratio
= 0.0025 % (25 ppm)
0.04 g
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Each resistor: 0.05 W
DSMZ (Z-Foil)
Vishay Foil Resistors
TABLE 3 - GLOBAL PART NUMBER INFORMATION
(1)
NEW GLOBAL PART NUMBER: Y4485V0067QT9W (preferred part number format)
DENOTES PRECISION
Y
VCODE
RESISTANCE
VALUE CODE
TOLERANCE MATCH
T
= 0.01 %
Q
= 0.02 %
A
= 0.05 %
PACKAGING
R
= tape and reel
W
= waffle pack
L
= bulk pack
Y
4
4
8
5
V
0
PRODUCT CODE
4485
= DSMZ
RESISTANCE TOLERANCE
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.10 %
FOR EXAMPLE: ABOVE GLOBAL ORDER Y4485 V0067 Q T 9 W:
TYPE: DSMZ
VALUES: 10K/400R
ABSOLUTE TOLERANCE: ± 0.02 %
TOLERANCE MATCH: 0.01 %
TERMINATION: lead (Pb)-free
PACKAGING: waffle pack
HISTORICAL PART NUMBER: DSMZ 10K 400R TCR0.2 Q T S W (will continue to be used)
DSMZ
MODEL
10K 400R
OHMIC VALUE
R
1
= 10 k
R
2
= 400
TCR0.2
TCR
CHARACTERISTIC
Q
T
ABSOLUTE
TOLERANCE
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.10 %
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Note
(1)
For non-standard requests or additional values, please contact application engineering.
TABLE 4 - RESISTANCE VALUE CODE LIST FOR POPULAR RATIOS
(1)
VCODES
V0052
R1/R2
RATIO
100
50
R1
R2
VCODES
V0080
V0081
V0082
V0083
V0084
V0085
V0086
V0087
1.25
2
R1/R2
RATIO
2.5
R1
1K
500R
10K
2K
1K
400R
200R
500R
R2
400R
200R
5K
1K
500R
200R
100R
400R
10K
5K
100R
V0065
10K
200R
V0066
100R
V0067
V0068
25
10K
5K
400R
200R
V0069
V0070
20
10K
2K
10K
2K
1K
2K
1K
500R
1K
100R
V0071
V0072
V0073
V0074
10
200R
100R
1K
5K
V0075
V0076
V0077
V0246
V0078
V0079
5
400R
200R
2K5
500R
500R
10K
2K
400R
100R
4
100R
Note
(1)
Other values available upon request.
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Document Number: 63121
Revision: 25-Mar-10
PR
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0
6
7
Q
T
9
W
CHARACTERISTICS
0
= standard
9
= lead (Pb)-free
1 to 999
= custom
S
W
TOLERANCE
MATCH
T
= 0.01 %
Q
= 0.02 %
A
= 0.05 %
TERMINATION
PACKAGING
S
= lead (Pb)-free
B
= tin/lead
T
= tape and reel
W
= waffle pack
B
= bulk pack
V0001
V0002
V0059
V0004
V0091
V0090
V0089
V0088
1
10K
5K
2K
1K
500R
400R
200R
100R
10K
5K
2K
1K
500R
400R
200R
100R
Legal Disclaimer Notice
Vishay Precision Group
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, “Vishay Precision Group”), 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 Vishay Precision Group’s terms and conditions of
purchase, including but not limited to, the warranty expressed therein.
Vishay Precision Group 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, Vishay Precision Group
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 Vishay Precision Group’s knowledge of typical requirements that are often placed on
Vishay Precision Group 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.
No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by
any conduct of Vishay Precision Group.
The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise
expressly indicated. Customers using or selling Vishay Precision Group products not expressly indicated for use
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damages arising or resulting from such use or sale. Please contact authorized Vishay Precision Group personnel
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Product names and markings noted herein may be trademarks of their respective owners.
Document No.: 63999
Revision: 27-Apr-11
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