VCS201, VCS202
Vishay Foil Resistors
Bulk Metal
®
Foil Technology Conformally Coated
Precision Current Sensing Resistors with Temperature Coefficient
of Resistance (TCR) of 10 ppm/°C and values down to to 5 m
FEATURES
Temperature coefficient of resistance (TCR):
± 10 ppm/°C typical (0 °C to 60 °C) (see table 1)
Tolerance: to ± 0.1 % (see table 1)
Power rating: 2 W at 25 °C
Load life stability: ± 0.02 % at 25 °C, 2000 h at rated power
Resistance range: 0.005
to 0.2
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)
Thermal stabilization time < 1 s
Thermal EMF: 0.05 µV/°C typical
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 us
INTRODUCTION
The VCS201 and VCS202 offer resistance values as low as
5 m and TCR’s as low as 10 ppm/°C typical with excellent
long term stability. The resistors are conformally coated. The
4 terminal current sensing resistors can sustain 2 W
continuously without an appreciable change in resistance
(0.5 % maximum).
The typical 50 % derating of the power
specification associated with other technologies is not
necessary.
Our application engineering department is available to
advise and to make recommendations. For non-standard
technical requirements and special applications, please
contact us.
FIGURE 1 - DIMENSIONS AND SCHEMATIC
in inches (millimeters)
Models VCS201 and VCS202
L
W
H
I
D
2
D
1
LS
Copper leads
LT
LL
I
1
E
1
V
R
E
2
I
2
I
MODEL
VCS201
VCS202
L
(Maximum)
1.060 (26.92)
1.240 (31.5)
H
(Maximum)
0.374 (9.50)
0.512 (13.0)
W
(Maximum)
0.177 (4.50)
0.177 (4.50)
LL
(Minimum)
0.500 (12.7)
0.500 (12.7)
LS
± 0.020 (± 0.51)
0.530 (13.46)
0.689 (17.5)
LT
± 0.020 (± 0.51)
0.925 (23.5)
1.083 (27.51)
D
1
(Nominal)
0.032 (0.81)
0.040 (1.02)
D
2
(Nominal)
0.025 (0.64)
0.032 (0.81)
TABLE 1 - CHARACTERISTICS
MODEL NUMBER
VCS201
VCS202
RESISTANCE
RANGE
0.005
to
0.01
> 0.01
to 0.05
> 0.05
to 0.2
TIGHTEST RESISTANCE
TOLERANCE (%)
±1
± 0.5 (± 0.1)
± 0.1
TCR (ppm/°C)
0 °C to + 60 °C
± 30
± 25
± 15
MAXIMUM
CURRENT (A)
10
15
POWER RATING
at + 25 °C (W)
1.5
2
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63150
Revision: 29-Mar-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
1
VCS201, VCS202
Vishay Foil Resistors
TABLE 2 - VCS201, VCS202 PERFORMANCE SPECIFICATIONS
TEST
(Conditions per MIL-PRF-49465)
Thermal Shock
Short Time Overload
Resistance to Soldering Heat
Terminal Strength
High Temperature Exposure
Low Temperature Storage
Moisture Resistance
Shock (Specified Pulse)
Vibration (High Frequency)
Load Life Stability
Solderability
Thermal EMF (Lead to Lead) (E Terminals)
Note
•
R’s
plus additional 0.0005
for measurement error
CONDITIONS
- 55 °C to + 125 °C, 5 cycles
5 x rated power for 5 s
10 s to 12 s at + 260 °C
Pull test at 5 lb
2000 h, + 150 °C
MIL-PRF-49465
MIL-STD-202, method 106
100 g, 6 ms
(10 Hz to 2000 Hz) 20 g
2000 h, + 25 °C at rated power
MIL-STD-202
-
MIL-PRF-49465B
R
LIMITS
± (0.5 % + 0.0005R)
± (0.5 % + 0.0005R)
± (0.25 % + 0.0005R)
± (1.0 % + 0.0005R)
± (1.0 % + 0.0005R)
± (0.5 % + 0.0005R)
± (0.5 % + 0.0005R)
± (0.1 % + 0.0005R)
± (0.1 % + 0.0005R)
± (1.0 % + 0.0005R)
95 % coverage
-
TYPICAL
R
LIMITS
± 0.01 %
± 0.01 %
± 0.01 %
± 0.005 %
± 0.05 %
± 0.01 %
± 0.01 %
± 0.05 %
± 0.05 %
± 0.02 %
-
± 0.05 µV/°C
MAXIMUM
R
LIMITS
± 0.02 %
± 0.02 %
± 0.02 %
± 0.01 %
± 0.1 %
± 0.02 %
± 0.02 %
± 0.1 %
± 0.1 %
± 0.05 %
-
± 0.2 µV/°C
FIGURE 2 - POWER DERATING CURVE
- 55 °C
+ 100
+ 25 °C
Percent of
Rated Power
+ 75
+ 50
+ 25
0
- 50
0
+ 50
100
150
+ 200
Ambient Temperature (°C)
(Further Derating Not Necessary)
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For any questions, contact:
foil@vishaypg.com
Document Number: 63150
Revision: 29-Mar-10
VCS201, VCS202
Vishay Foil Resistors
TABLE 3 - GLOBAL PART NUMBER INFORMATION
(1)
NEW GLOBAL PART NUMBER: Y09550R00500F9L (preferred part number format)
DENOTES PRECISION
Y
VALUE
R
=
CHARACTERISTICS
0
= standard
9
= lead (Pb)-free
1 to 999
= custom
Y
0
9
5
5
0
R
0
0
5
0
0
F
9
L
PRODUCT CODE
0955
= VCS201
0941
= VCS202
RESISTANCE TOLERANCE
B
= ± 0.1 %
D
= ± 0.5 %
F
= ± 1.0 %
G
= ± 2.0 %
J
= ± 5.0 %
PACKAGING
L
= bulk pack
FOR EXAMPLE: ABOVE GLOBAL ORDER Y0955 0R00500 F 9 L:
TYPE: VCS201
VALUE: 0.005
ABSOLUTE TOLERANCE: ± 1.0 %
TERMINATION: lead (Pb)-free
PACKAGING: bulk pack
HISTORICAL PART NUMBER: VCS201T 0R0050 F B (will continue to be used)
VCS201
MODEL
VCS201
VCS202
T
TERMINATION
T
= lead (Pb)-free
None = tin/lead alloy
0R0050
OHMIC VALUE
0.005
F
RESISTANCE
TOLERANCE
B
= ± 0.1 %
D
= ± 0.5 %
F
= ± 1.0 %
G
= ± 2.0 %
J
= ± 5.0 %
B
PACKAGING
B
= bulk pack
Note
(1)
For non-standard requests, please contact application engineering.
Document Number: 63150
Revision: 29-Mar-10
For any questions, contact:
foil@vishaypg.com
www.foilresistors.com
3
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.
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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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Product names and markings noted herein may be trademarks of their respective owners.
Document No.: 63999
Revision: 27-Apr-11
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