200 Series
Vishay Foil Resistors
Bulk Metal
®
Foil Technology Conformally Coated
Precision Current Sensing Resistors
with TCR of 5 ppm/°C and values down to 5 mΩ
FEATURES
•
Temperature Coefficient of Resistance (TCR):
± 5 ppm/°C (0 to 60 °C) (see table 1)
Pb-free
Available
•
Tolerance: to ± 0.02 % (see table 1)
•
Power Rating: 2 W at 25 °C
RoHS*
COMPLIANT
•
Load Life Stability: ± 0.005 % at 25 °C,
2000 hours at Rated Power
•
Resistance Range: 0.005
Ω
to 500
Ω
•
Electrostatic Discharge (ESD) above 25 000 V
•
Non Inductive, Non Capacitive Design
•
Rise Time: 1.0 ns without 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
•
Terminal Finishes Available: Lead (Pb)-free
Tin/Lead Alloy
•
Any value available within resistance range (e.g. 1K234)
•
Prototype samples available from 48 hours. For more
information, please contact foil@vishay.com
•
For better performances, please see VCS300 series
datasheet
Any value available within resistance range
The VCS200 Series offers resistance values as low as 5 mΩ
and TCR’s as low as 5 ppm/°C 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, VCS202 and VCS232
L
W
H
I
D
2
D
1
LS
LT
Solder coated
copper leads
LL
I
1
E
1
V
R
E
2
I
2
I
MODEL
VCS201
VCS202,
VCS232
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
RESISTANCE
RANGE
0.005
Ω
to 0.01
Ω
VCS201 & VCS202
> 0.01
Ω
to 0.05
Ω
> 0.05
Ω
to 0.2
Ω
0.2
Ω
to 1.0
Ω
VCS232
> 1
Ω
to 10
Ω
> 10
Ω
to 500
Ω
TIGHTEST RESISTANCE
TOLERANCE %
±1
± 0.5
± 0.1
± 0.05
± 0.05
± 0.02
TCR (ppm/°C)
0 °C to + 60 °C
± 30
± 25
± 15
± 15
±5
±5
15
3
2W
2W
MAXIMUM
CURRENT - Amp
10
POWER RATING
at + 25 °C
1.5 W
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63017
Revision: 16-Jul-07
For any questions, contact: foil@vishay.com
www.vishay.com
1
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