DSM
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: ± 2 ppm/°C typical
(- 55 °C to + 125 °C, + 25 °C ref.)
Tracking: 0.5 ppm/°C typical
•
Tolerance: absolute: ± 0.02 %; match: 0.01 %
•
Power rating at 70 °C: entire package: 0.1 W
each resistor: 0.05 W
•
Ratio stability: 0.005 % (0.05 W at 70 °C, 2000 h)
•
Resistance range: 100
Ω
to 12 kΩ per resistor
•
Large variety of resistance ratios: 1:120
•
Vishay 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
•
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 see DSMZ datasheet
(Z-foil)
INTRODUCTION
Bulk Metal
®
foil technology out-performs all other resistor
technologies available today for applications that require high
precision and high stability.
This technology has been invented, patented and pioneered
by Vishay. Products based on this technology are the most
suitable for a wide range of appilcations.
BMF technology allows to produce customer oriented
products designed to satisfy challenging and specific
technical requirements. Model DSM offers low TCR (both
absolute and tracking), excellent load life stability, tight
tolerance, excellent ratio stability, and low current noise, all in
one package.
The DSM surface mount divider provides a matched pair of
Bulk Metal 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.
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Our application engineering department is available to advise
and make recommendations. For non-standard technical
requirements and special applications, please contact us.
FIGURE 1 - SCHEMATIC
R
1
R
2
OPTION 1
SAME OHMIC VALUE,
SAME ABSOLUTE TOLERANCE
OPTION 2
RESISTOR PAIR
R
1
/R
2
- DIFFERENT VALUES
TABLE 1 - MODEL DSM SPECIFICATIONS
MODEL
ABSOLUTE TCR
(- 55 °C TO + 125 °C, + 25 °C REF.)
TYPICAL + MAX. SPREAD
RESISTANCE
RATIO
R1/R2 = 1
DSM
± 2 ppm/°C ± 3 ppm/°C
1 < R1/R2
≤
10
10 < R1/R2
≤
120
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63088
Revision: 25-Mar-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
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APPLICATIONS
•
•
•
•
•
•
•
Instrumentation amplifiers
Bridge networks
Differential amplifiers
Ratio arms in bridge circuits
Medical and test equipment
Military
Airborne etc.
R
1
Vin
-
Vout
+
DSM
R
2
TOLERANCE
TCR TRACKING
1.0 ppm/°C
2.0 ppm/°C
3.0 ppm/°C
ABSOLUTE
± 0.02 %
± 0.05 %
± 0.1 %
MATCH
0.01 %
0.02 %
0.05 %
DSM
Vishay Foil Resistors
FIGURE 2 - POWER DERATING CURVE
110
100
90
80
70
60
50
40
30
20
10
0
- 60 - 40
- 55
FIGURE 3 - RECOMMENDED LAND
0.063 ± 0.004
(1.6 ± 0.1)
0.040 ± 0.004
(1.02 ± 0.1)
Percent of Rated Wattage
- 20
0
20
40
60
70
80
100
120 140
125
Ambient Temperature (°C)
FIGURE 4 - 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 Opposing
Current in
Adjacent Lines
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Note:
Foil shown in
black,
etched spaces in
white
FIGURE 6 - DIMENSIONS AND IMPRINTING
SIDE VIEW
H
w
TH
t
P
P
BOTTOM VIEW
1
TW
3
2
STAND OFF
Note:
R1 - between PIN1 and PIN3
R2 - between PIN2 and PIN3
DIMENSIONS
INCHES
MILLIMETERS
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
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0.100 ± 0.004
(2.54 ± 0.1)
0.035 ± 0.004
(0.89 ± 0.1)
FIGURE 5 - TYPICAL RESISTANCE/
TEMPERATURE CURVE
(For more details, see table 1)
+ 150
+ 100
Δ
R
+ 50
± 2 ppm/°C
(+ 25 °C reference)
0
R
(ppm)
- 50
- 100
- 150
- 200
- 50
- 55
- 25
0
+ 25
+ 50
+ 75
0.071 ± 0.004
(1.8 ± 0.1)
+ 100
Ambient Temperature (°C)
FRONT VIEW
L
TW
S
TW
TOP VIEW
VALUE R1
RATIO TOLERANCE CODE
3
VALUE R2
10K Q 10K
V B0219
1
DATE CODE
2
P
TW
TH
S
Document Number: 63088
Revision: 25-Mar-10
0.100 ± 0.004
(2.54 ± 0.1)
+ 125
t
DSM
Vishay Foil Resistors
TABLE 3 - PERFORMANCE SPECIFICATIONS
(Test Method Per MIL-PRF-914)
SPECIFICATIONS
Power Rating
at 70 °C
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 h
DWV
atmospheric pressure, 200 V (A.C.), 1 min
Insulation Resistance
100 V (D.C.), 1 min
Resistance to Soldering Heat
Moisture Resistance
+ 65 °C to - 10 °C; 90 % to 98 % RH; 0.1 x rated power, 240 h
Shock (Specified Pulse)
100 G
Vibration, High Frequency
(10 Hz to 2000 Hz), 20 G
High Temperature Exposure
100 h at 125 °C
Low Temperature Storage
24 h at - 65 °C
Entire package: 0.1 W
Each resistor: 0.05 W
TYPICAL LIMITS
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Load Life Stability
2000 h at + 70 °C; rated power
Short Time Overload
6.25 x rated power; 5 s
Low Temperature Operation
Weight
+ 60
+ 50
+ 40
+ 30
+ 20
FIGURE 7 - DSM 10K/10K, 20 UNITS, LOAD LIFE
0.05 W each value, at + 70 °C
ΔRatio
(ppm)
+ 10
0
- 10
- 30
- 40
- 50
- 20
250
500
Document Number: 63088
Revision: 25-Mar-10
For any questions, contact:
foil@vishaypg.com
PR
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25 V
- 65 °C to + 125 °C
ΔR
= 0.01 % (100 ppm)
ΔRatio
= 0.005 % (50 ppm)
ΔR
= 0.015 % (150 ppm)
ΔRatio
= 0.01 % (100 ppm)
Successfully passed
> 10
4
MΩ
ΔR
= 0.01 % (100 ppm)
ΔRatio
= 0.005 % (50 ppm)
ΔR
= 0.02 % (200 ppm)
ΔRatio
= 0.005 % (50 ppm)
ΔR
= 0.005 % (50 ppm)
ΔRatio
= 0.0025 % (25 ppm)
ΔR
= 0.01 % (100 ppm)
ΔRatio
= 0.005 % (50 ppm)
ΔR
= 0.01 % (100 ppm)
ΔRatio
= 0.005 % (50 ppm)
ΔR
= 0.005 % (50 ppm)
ΔRatio
= 0.005 % (50 ppm)
ΔR
= 0.005 % (50 ppm)
ΔRatio
= 0.005 % (50 ppm)
ΔR
= 0.005 % (50 ppm)
ΔRatio
= 0.0025 % (25 ppm)
ΔR
= 0.005 % (50 ppm)
ΔRatio
= 0.0025 % (25 ppm)
0.04 g
1000
2000
Time (h)
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DSM
Vishay Foil Resistors
FIGURE 8 - DSM 10K/10K, 20 UNITS, HIGH TEMPERATURE EXPOSURE,
100 h at 125 °C, followed by low temperature storage, 24 h at - 65 °C
+
80
+ 60
+ 40
+ 20
0
- 20
- 40
High Temperature Exposure
TABLE 4 - RESISTANCE VALUE CODE LIST FOR POPULAR RATIOS
(other values available upon request)
VCODES
V0052
V0065
50
V0066
R1/R2
RATIO
100
R1
10K
10K
5K
R2
100R
200R
100R
VCODES
V0080
R1/R2
RATIO
2.5
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V0067
V0068
25
10K
5K
400R
200R
V0069
10K
2K
500R
20
V0070
100R
1K
V0071
10K
2K
1K
V0072
V0073
V0074
10
200R
100R
1K
5K
V0075
V0076
V0077
2K
1K
400R
200R
5
500R
10K
2K
100R
2K5
V0246
V0078
V0079
4
500R
400R
100R
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Low Temperature Storage
ΔRatio
(ppm)
R1
1K
R2
400R
V0081
500R
10K
2K
200R
5K
1K
V0082
V0083
V0084
V0085
V0086
V0087
1.25
2
1K
400R
200R
500R
500R
200R
100R
400R
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
Document Number: 63088
Revision: 25-Mar-10
DSM
Vishay Foil Resistors
TABLE 5 - GLOBAL PART NUMBER INFORMATION
(1)
NEW GLOBAL PART NUMBER: Y1485V0067BA9W (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
B
= bulk pack
Y
1
4
8
5
V
PRODUCT CODE
1485
= DSM
RESISTANCE TOLERANCE
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.10 %
FOR EXAMPLE: ABOVE GLOBAL ORDER Y1485 V0067 B A 9 W:
TYPE: DSM
VALUES: 10K/400R
ABSOLUTE TOLERANCE: ± 0.1 %
TOLERANCE MATCH: 0.05 %
AER: standard
PACKAGING: waffle pack
HISTORICAL PART NUMBER: DSM 10K 400R TCR2 B A W (will continue to be used)
DSM
MODEL
10K 400R
OHMIC VALUE
R
1
= 10 kΩ
R
2
= 400
Ω
TCR2
TCR
CHARACTERISTIC
B
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Note
(1)
For non-standard requests or additional values, please contact application engineering.
Document Number: 63088
Revision: 25-Mar-10
For any questions, contact:
foil@vishaypg.com
PR
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0
0
6
7
B
A
9
W
CHARACTERISTICS
0
= standard
1 to 999
= custom
A
W
ABSOLUTE
TOLERANCE
Q
= ± 0.02 %
A
= ± 0.05 %
B
= ± 0.10 %
TOLERANCE
MATCH
T
= 0.01 %
Q
= 0.02 %
A
= 0.05 %
PACKAGING
T
= tape and reel
W
= waffle pack
L
= bulk pack
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