VCS301, VCS302
Vishay Foil Resistors
High Precision 4-Terminal Power Current Sensing Resistors with
TCR as low as ± 3 ppm/°C Maximum, Tolerance to ± 0.5 % and Load
Life Stability ± 0.02 % (200 ppm) at 25 °C, 2000 h at Rated Power
FEATURES
Temperature coefficient of resistance (TCR):
down to ± 3 ppm/°C max. (see table 2)
Tolerance: to ± 0.5 % (see table 1)
Power rating (heat-sinked): 10 W
Load life stability: ± 0.02 % (200 ppm) at 25 °C,
2000 h at rated power
Resistance range: 0.005
to 0.25
Vishay Foil resistors are not restricted to standard values;
specific “as required” values can be supplied at no extra
cost or delivery (e.g. 0R123 vs. 0R1)
Non inductive, non capacitive design
Rise time: 1.0 ns effectively no ringing
Thermal EMF: 0.05 µV/°C typical
Voltage coefficient: < 0.1 ppm/V
Non inductive: 0.08 µH
Non hot spot design
Terminal finish: lead (Pb)-free or tin/lead 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
INTRODUCTION
The VCS301 and VCS302 offer precision resistors as low as
5 m with a temperature coefficient down to 3 ppm/°C
maximum and unmatched long term stability. The 4 terminal
current sensing resistors, when mounted on a heat sink, can
sustain 10 W continuously without an appreciable change in
resistance (0.15 % maximum). The typical 50 % power
derating specification associated with other technologies is
not necessary. A choice of lead configurations is available.
Our application engineering department is available to
advise and make recommendations. For non-standard
technical requirements and special applications, please
contact us.
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TABLE 1 - CHARACTERISTICS
MODEL NUMBER
RESISTANCE RANGE
0.005
< R < 0.1
0.1
R < 0.25
TOLERANCE
(1)
±1%
VCS301, VCS302
Notes
1. Tighter tolerance is available - for more details contact application engineering
2. The lower of the two limitations (power or current) is decisive
3. Heatsink - aluminum (6" length x 4" width x 2" height x 0.04" thick)
TABLE 2 - TCR CHART (MAXIMUM)
(0 °C TO + 60 °C)
Percent of
Rated Power
0.005
0.01
0.05
0.1
to
to
< 0.01
< 0.05
< 0.1
± 15 ppm/°C
± 10 ppm/°C
± 5 ppm/°C
± 3 ppm/°C
to
to
< 0.25
* Pb containing materials are not RoHS compliant, exemptions may apply
Document Number: 63152
Revision: 29-Mar-10
For any questions, contact:
foil@vishaypg.com
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POWER RATING
(2)
at + 25 °C
10 W on
heat sink
(3)
or
3 W in free air
MAXIMUM CURRENT
(2)
15 A
± 0.5 %
FIGURE 1 - POWER DERATING CURVE
- 55 °C
+ 100
+ 75
+ 50
+ 25
0
- 50
0
+ 50
+ 100
+ 150
+ 200
+ 25 °C
Ambient Temperature °C
(Further Derating Not Necessary)
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VCS301, VCS302
Vishay Foil Resistors
FIGURE 2 - DIMENSIONS
in inches (millimeters)
AND SCHEMATIC
Model VCS301 (E lead rectangular)
D1
L1
L2
W2
W1
Model VCS302 (round leads)
H2
VISHAY
VCS301
0R1000 1%
B9825
D2
p
LS
LT
T
LL
H1
I
I
1
E
1
MODEL
L
1
± 0.008
(± 0.20)
1.340
(34.04)
1.340
(34.04)
L
2
H
1
H
2
W
1
W
2
LL
LS
± 0.008 MAXIMUM ± 0.008 MAXIMUM MAXIMUM MINIMUM ± 0.020
(± 0.20)
(± 0.20)
(± 0.51)
0.701
(17.81)
0.701
(17.81)
1.063
(27.00)
1.024
(26.01)
0.197
(5.00)
0.197
(5.00)
0.210
(5.33)
0.210
(5.33)
0.087
(2.21)
0.087
(2.21)
0.216
(5.49)
1.000
(25.40)
0.689
(17.50)
0.689
(17.50)
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VCS301
VCS302
TABLE 3 - VISHAY VCS301, VCS302 PERFORMANCE
TEST OR CONDITION
VCS301, VCS302 PERFORMANCE
(1)
TYPICAL
R
LIMITS
0.01 %
0.01 %
0.02 %
0.02 %
0.03 %
0.005 %
0.01 %
0.01 %
0.02 %
0.5 %
0.2 µV/°C max. (E terminal)
8.1 g maximum
MAXIMUM
R
LIMITS
0.02 %
0.02 %
0.05 %
0.05 %
0.05 %
0.01 %
0.02 %
0.02 %
0.05 %
1%
Thermal Shock
Short Time Overload
(5 x Rated Power for 5 s)
Terminal Strength
High Temperature Exposure
(2000 h at 150 °C)
Moisture Resistance
Low Temperature Storage
(24 h at - 55 °C)
Shock
(Specified Pulse)
Vibration
(High Frequency)
Resistance Tolerance
Thermal EMF
Weight
Load Life
(Rated Power, + 25 °C, 2000 h)
Notes
1.
R’s
plus additional 0.0005
for measurement error
2. All measurements done in free air
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For any questions, contact:
foil@vishaypg.com
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L1
L2
D1
W1
H2
H1
VISHAY
VCS302
0R1000 0.5%
B9825
D2
p
LL
W2
R
I
LS
LT
E
2
I
2
V
LT
± 0.020
(± 0.51)
1.083
(27.51)
1.083
(27.51)
D
1
D
2
P
NOMINAL NOMINAL NOMINAL
T
NO
0.138
(3.51)
0.138
(3.51)
0.040
(1.02)
0.040
(1.02)
0.040
(1.02)
0.032
(0.81)
0.016
(0.41)
-
Document Number: 63152
Revision: 29-Mar-10
VCS301, VCS302
Vishay Foil Resistors
TABLE 4 - GLOBAL PART NUMBER INFORMATION
(1)
NEW GLOBAL PART NUMBER: Y09590R25000D9L (preferred part number format)
DENOTES PRECISION
Y
VALUE
R
=
CHARACTERISTICS
0
= standard
9
= lead (Pb)-free
1 to 999
= custom
Y
0
9
5
9
0
R
PRODUCT CODE
0959
= VCS301
0943
= VCS302
RESISTANCE TOLERANCE
D
= ± 0.5 %
F
= ± 1.0 %
FOR EXAMPLE: ABOVE GLOBAL ORDER Y0959 0R25000 D 9 L:
TYPE: VCS301
VALUE: 0.25
ABSOLUTE TOLERANCE: ± 0.5 %
TERMINATION: lead (Pb)-free
PACKAGING: bulk
HISTORICAL PART NUMBER: VCS301T 0R2500 D B (will continue to be used)
VCS301
MODEL
VCS301
VCS302
T
TERMINATION
T
= lead (Pb)-free
None = tin/lead alloy
0R2500
RESISTANCE VALUE
0.25
Note
(1)
For non-standard requests, please contact application engineering
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Document Number: 63152
Revision: 29-Mar-10
For any questions, contact:
foil@vishaypg.com
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2
5
0
0
0
D
9
L
PACKAGING
L
= bulk pack
D
B
TOLERANCE
D
= ± 0.5 %
F
= ± 1.0 %
PACKAGING
B
= bulk pack
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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
conduct of VPG.
The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise
expressly indicated. Customers using or selling VPG products not expressly indicated for use in such applications do
so entirely at their own risk and agree to fully indemnify VPG for any damages arising or resulting from such use or sale.
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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