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)
Tolerance: to 0.02 % (see table 1)
Power Rating: 2 W at 25 °C
Load Life Stability: 0.005 % at 25 °C,
2000 hours at Rated Power
Pb-free
•
•
•
Available
RoHS*
COMPLIANT
Any value available within resistance range
•
Resistance Range: 0.005 Ω to 500 Ω
• Electrostatic Discharge (ESD) above 25 000 V
• Non Inductive, Non Capacitive Design
The VCS200 Series offers resistance values as low as 5 m
Ω
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.
•
•
•
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
Our Application Engineering Department is available to
advise and to make recommendations. For non-standard
technical requirements and special applications, please
contact us.
•
•
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
•
FIGURE 1 - DIMENSIONS AND SCHEMATIC in inches (millimeters)
Models VCS201, VCS202 and VCS232
L
W
H
R
V
I
I
D2
LL
I1
E1
E2
I2
D1
LS
LT
(Maximum)
Solder coated
copper leads
L
H
W
LL
(Minimum)
LS
LT
D1
(Nominal)
D2
(Nominal)
MODEL
(Maximum)
(Maximum)
0.020 ( 0.51)
0.020 ( 0.51)
VCS201
1.060 (26.92) 0.374 (9.50) 0.177 (4.50) 0.500 (12.7)
0.530 (13.46)
0.925 (23.5)
0.032 (0.81) 0.025 (0.64)
VCS202,
VCS232
1.240 (31.5) 0.512 (13.0) 0.177 (4.50) 0.500 (12.7)
0.689 (17.5)
1.083 (27.51)
0.040 (1.02) 0.032 (0.81)
TABLE 1 - CHARACTERISTICS
RESISTANCE
TIGHTEST RESISTANCE
TOLERANCE %
TCR (ppm/°C)
0 °C to + 60 °C
MAXIMUM
CURRENT - Amp
POWER RATING
at + 25 °C
MODEL NUMBER
RANGE
0.005 Ω to 0.01 Ω
1
30
25
15
15
5
10
1.5 W
VCS201 & VCS202
VCS232
> 0.01 Ω to 0.05 Ω
> 0.05 Ω to 0.2 Ω
0.2 Ω to 1.0 Ω
0.5
0.1
15
3
2 W
2 W
0.05
0.05
0.02
> 1 Ω to 10 Ω
> 10 Ω to 500 Ω
5
* 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