VCS301 Datasheet, PDF (1/4 Pages) Vishay Siliconix – Bulk Metal® Foil Technology High Precision 4-Terminal Power Current Sensing Resistors with TCR as low as ± 1 ppm/°C and Tolerance ± 0.1 %

300 Series
Vishay Foil Resistors
Bulk Metal^® Foil Technology High Precision
4-Terminal Power Current Sensing Resistors with
TCR as low as ± 1 ppm/°C and Tolerance ± 0.1 %
FEATURES
Any value at any tolerance available within resistance range
The 300 Series offers precision Bulk Metal^® Foil technology
resistors as low as 5 mΩ with a temperature coefficient
down to 1 ppm/°C and unmatched long term stability. The
4 terminal current sensing resistors, when mounted on a
heat sink, can sustain 10 watts 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
• Temperature Coefficient of Resistance (TCR):
down to ± 1 ppm/°C Max. (see table 2)
• Tolerance: to ± 0.1 % (see table 1)
T _{• Power Rating (heat-sinked): 10 W}
Pb-free
Available
RoHS*
COMPLIANT
• Load Life Stability: ± 0.05 % at 25 °C, 2000 hours at Rated
Power
C _{• Resistance Range: 0.005 Ω to 500 Ω}
• Electrostatic Discharge (ESD) above 25 000 V
• Non Inductive, Non Capacitive Design
U _{• Rise Time: 1.0 ns without ringing}
• Current Noise: < - 40 dB
D _{• Thermal EMF: 0.05 µV/°C typical}
• Voltage Coefficient: < 0.1 ppm/V
• Non Inductive: 0.08 µH
O _{• Non Hot Spot Design}
• Terminal Finishes available: Lead (Pb)-free
Tin/Lead Alloy
R _{• Any value available within resistance range (e.g. 1K2345)}
P^{• Prototype samples available from 48 hours. For more}
advise and make recommendations. For non-standard
technical requirements and special applications, please
contact us.
information, please contact [e-mail]
• For better performances, please contact Application
Engineering
D ^{TABLE 1 - CHARACTERISTICS}
MODEL NUMBER
RESISTANCE RANGE
TOLERANCE¹⁾
POWER RATING²⁾
at + 25 °C
E _{VCS301, VCS302}
V ^{VCS331, VCS332}
0.005 Ω < R < 0.1 Ω
0.1 Ω ≤ R < 0.25 Ω
0.25 Ω < R < 500 Ω
±1%
± 0.5 %
± 0.1 %
10 W on
Heat Sink³⁾
or
3 W in Free Air
Notes
1. Tighter tolerance is available - for more details contact Application Engineering
2. The lower of the two limitations (Power or Current) is decisive
O _{3. Heatsink - Aluminum (6 inches length x 4 inches width x 2 inches height x 0.04 inches thick)}
MAXIMUM CURRENT²⁾
15 A
5A
TABLE 2 - TCR CHART (MAXIMUM)
R_{(0 °C TO + 60 °C)}
≥ 0.005 Ω to < 0.01 Ω
± 15 ppm/°C
P _{≥ 0.01 Ω to < 0.05 Ω}
± 10 ppm/°C
≥ 0.05 Ω to < 0.1 Ω
± 5 ppm/°C
IM^{≥ 0.1 Ω}
to < 1 Ω
± 3 ppm/°C
FIGURE 1 - POWER DERATING CURVE
+ 100
- 55 °C
+ 25 °C
+ 75
+ 50
+ 25
0
- 50
0
+ 50
+ 100
+ 150
+ 200
≥1Ω
to < 10 Ω
± 2 ppm/°C
Ambient Temperature °C
≥ 10 Ω
to < 500 Ω
± 1 ppm/°C
(Further Derating Not Necessary)
* Pb containing materials are not RoHS compliant, exemptions may apply
Document Number: 63018
Revision: 26-Jun-07
For any questions, contact: [e-mail]
www.vishay.com
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