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
Any value at any ratio available within resistance range
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
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.
FIGURE 1 - SCHEMATIC
SAME ABSOLUTE TOLERANCE
®
Foil Resistors in a small epoxy molded package.
OPTION 1
SAME OHMIC VALUE,
R
1
R
2
OPTION 2
RESISTOR PAIR
R1/R2 - DIFFERENT VALUES
• 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 hours)
• Resistance Range: 100 Ω to 20 kΩ per resistor
• Large Variety of Resistance Ratios: 1:200
• Electrostatic Discharge (ESD) above 25 000 Volts
• Short Time Overload ≤ 0.005 %
• Non Inductive, Non Capacitive Design
• Rise Time: 1.0 ns without 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
• Any value available within resistance range (e.g. 1K2345)
• Prototype samples available from 48 hours. For more
information, please contact foil@vishay.com
• For better performances, please see DSMZ datasheet
(Z-Foil)
APPLICATIONS
• Instrumentation amplifiers
• Bridge networks
• Differential amplifiers
• Ratio arms in bridge circuits
• Medical and test equipment
• Military
• Airborne etc.
R
ODUC
R
2
R
1
Vin
-
+
DSM
Pb-free
Available
RoHS*
T
Vout
DSM
TABLE 1 - MODEL DSM SPECIFICATIONS
MODEL
(- 55 °C TO + 125 °C, + 25 °C REF.)
MPROVED P
ABSOLUTE TCR
TYPICAL + MAX. SPREAD
I
DSM ± 2 ppm/°C ± 3 ppm/°C
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63088 For any questions, contact: foil@vishay.com
Revision: 05-Jun-07 1
RESISTANCE
RATIO
R1/R2 = 1 1.0 ppm/°C ± 0.02 % 0.01 %
1 < R1/R2 ≤ 10 2.0 ppm/°C ± 0.05 % 0.02 %
10 < R1/R2 ≤ 200 3.0 ppm/°C ± 0.1 % 0.05 %
TCR TRACKING
ABSOLUTE MATCH
TOLERANCE
www.vishay.com
DSM
f
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)
FIGURE 2 - POWER DERATING CURVE
110
100
90
80
70
60
50
Rated Wattage
40
30
20
10
Percent o
0
- 60 - 40 - 20 0 20 40 60 80 100 120 70140
- 55
FIGURE 4 - TRIMMING TO VALUES
Interloop Capacitance
Reduction in Series
Mutual Inductance
Reduction due
to Change in
Current Direction
Ambient Temperature (°C)
(Conceptual Illustration)
Before Trimming
Current Path
After Trimming
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Note: Foil shown in black, etched spaces in white
125
Current Path
FIGURE 3 - RECOMMENDED LAND
0.063 ± 0.004
(1.6 ± 0.1)
(0.89 ± 0.1)
(1.02 ± 0.1)
0.040 ± 0.004
0.100 ± 0.004
0.035 ± 0.004
(2.54 ± 0.1)
FIGURE 5 - TYPICAL TCR CURVE
(For more details, see table 1)
+ 150
∆
R
R
(ppm)
+ 100
+ 50
0
- 50
- 100
- 150
- 200
- 50 - 25 0 + 25 + 50 + 75 + 100 + 125
- 55
Ambient Temperature (°C)
± 2 ppm/°C
(+ 25 °C reference)
(1.8 ± 0.1)
(2.54 ± 0.1)
0.100 ± 0.004
0.071 ± 0.004
T
FIGURE 6 - DIMENSIONS AND IMPRINTING
w
H
TH
BOTTOM VIEW
3
TW
MPROVED PRODUC
I
DIMENSIONS L W H P TW TH S t
INCHES 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
MILLIMETERS 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
www.vishay.com For any questions, contact: foil@vishay.com Document Number: 63088
2 Revision: 05-Jun-07
STAND OFF
t
PP
TOP VIEW
1
2
Note:
R1 - between PIN1 and PIN3
R2 - between PIN 2 and PIN3
VAL UE R1
WEIV TNORFWEIV EDIS
RATIO TOLERANCE CODE
1 2
TW
3
10K Q 10K
V B0219
DATE CODE
L
TW
S
VAL UE R2
DSM
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)
TABLE 3 - PERFORMANCE SPECIFICATIONS (Test Method Per MIL-PRF-914)
SPECIFICATIONS TYPICAL LIMITS
Power rating at 70 °C Entire package: 0.1 W
Each resistor: 0.05 W
Maximum Working Voltage (each resistor) 25 V
Working Temperature Range - 65 °C to + 125 °C
Thermal Shock ΔR = 0.01 % (100 ppm)
25 x (- 65 °C to + 125 °C) ΔRatio = 0.005 % (50 ppm)
Thermal Shock
5 x (- 65 °C to + 125 °C) and ΔR = 0.015 % (150 ppm)
Power Conditioning ΔRatio = 0.01 % (100 ppm)
1.5 rated power at 25 °C, 100 hours
DWV atmospheric pressure, 200 V (A.C.), 1 minute Successfully passed
4
Insulation Resistance 100 V (D.C.), 1 minute > 10
Resistance to Soldering Heat ΔR = 0.01 % (100 ppm)
Moisture Resistance ΔR = 0.02 % (200 ppm)
+ 65 °C to - 10 °C; 90 % to 98 % RH; 0.1 x rated power, 240 hours ΔRatio = 0.005 % (50 ppm)
Shock (Specified Pulse) ΔR = 0.005 % (50 ppm)
100 G ΔRatio = 0.0025 % (25 ppm)
Vibration, High Frequency ΔR = 0.01 % (100 ppm)
(10 Hz - 2000 Hz), 20 G ΔRatio = 0.005 % (50 ppm)
High Temperature Exposure ΔR = 0.01 % (100 ppm)
100 hours at 125 °C ΔRatio = 0.005 % (50 ppm)
Low Temperature Storage ΔR = 0.005 % (50 ppm)
24 hours at - 65 °C ΔRatio = 0.005 % (50 ppm)
Load Life Stability ΔR = 0.005 % (50 ppm)
2000 hours at + 70 °C; rated power ΔRatio = 0.005 % (50 ppm)
Short Time Overload Δ R = 0.005 % (50 ppm)
6.25 x Rated Power; 5 seconds ΔRatio = 0.0025 % (25 ppm)
Low Temperature Operation ΔR = 0.005 % (50 ppm)
Weight 0.04 g
MΩ
ΔRatio = 0.005 % (50 ppm)
R
ΔRatio = 0.0025 % (25 ppm)
Vishay Foil Resistors
ODUC
T
MPROVED P
I
Document Number: 63088 For any questions, contact: foil@vishay.com
Revision: 05-Jun-07 3
www.vishay.com
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)
TABLE 4 - GLOBAL PART NUMBER INFORMATION
NEW GLOBAL PART NUMBER: Y1485V0067BA9W (preferred part number format)
DENOTES PRECISION VCODE* TOLERANCE MATCH PACKAGING
Y RESISTANCE
4 8 5V 0670Y1 A9B W
PRODUCT CODE RESISTANCE TOLERANCE AER*
1485 = DSM Q = ± 0.02 %
FOR EXAMPLE: ABOVE GLOBAL ORDER Y1485 V0067 B A 9 W:
TYPE: DSM
VALUES: 10K/400R
ABSOLUTE TOLERANCE: ± 0.1 %
TOLERANCE MATCH: 0.05 %
TERMINATION: Lead (Pb)-free
PACKAGING: Waffle Pack
HISTORICAL PART NUMBER: DSM 10K 400R TCR2 B A S W (will continue to be used)
DSM 10K 400R TCR2 B A S W
MODEL OHMIC VALUE
= 10 kΩ
R
1
R2 = 400 Ω
VALUE CODE
TCR
CHARACTERISTIC
A = ± 0.05 %
B = ± 0.10 %
ABSOLUTE
TOLERANCE
Q = ± 0.02 %
A = ± 0.05 %
B = ± 0.10 %
T = 0.01 %
Q = 0.02 %
A = 0.05 %
TOLERANCE
MATCH
T = 0.01 %
Q = 0.02 %
A = 0.05 %
R = Tape and Reel
W = Waffle Pack
0 = Standard
9 = Lead (Pb)-free
1 - 999 = Custom
TERMINATION PACKAGING
S = Lead (Pb)-free
B = Tin/Lead
T
T = Tape and Reel
W = Waffle Pack
Note
* For non-standard requests or additional values, please contact Application Engineering.
TABLE 5 - RESISTANCE VALUE CODE LIST FOR POPULAR RATIOS
(other values available upon request)
VCODES
V0052 100 10K 100R V0080
V0065
V0066 5K 100R V0082
V0067
V0068
V0069
V0070 2K 100R V0087 1.25 500R 400R
V0071
V0072 2K 200R
V0073 1K 100R
V0074
V0075 2K 400R
V0076 1K 200R
MPROVED PRODUC
V0077 500R 100R
I
V0246
V0078 2K 500R
V0079 400R 100R
R1/R2
RATIO
50
25
20
10
5
4
R1 R2 VCODES
10K 200R V0081 500R 200R
10K
5K
10K 500R V0086 200R 100R
10K 1K
5K 1K
10K 2K5
400R
200R
V0083 2K 1K
V0084 1K 500R
V0085 400R 200R
V0001
V0002
V0059
V0004
V0091
V0090
V0089
V0088
R1/R2
RATIO
2.5
2
1
R1 R2
1K 400R
10K 5K
10K
5K
2K
1K
500R
400R
200R
100R
10K
500R
400R
200R
100R
5K
2K
1K
www.vishay.com For any questions, contact: foil@vishay.com Document Number: 63088
4 Revision: 05-Jun-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 www.vishay.com
Revision: 18-Jul-08 1
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