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VCS1625Z Scheda tecnica(PDF) 2 Page - Vishay Siliconix

Il numero della parte VCS1625Z
Spiegazioni elettronici  Ultra High Precision Z-Foil Surface Mount Current Sensing Chip Resistors with TCR of 짹 0.05 ppm/째C and Power Coefficient of 5 ppm at Rated Power
PDF  4 Pages
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Produttore elettronici  VISHAY [Vishay Siliconix]
Homepage  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

VCS1625Z Scheda tecnica(HTML) 2 Page - Vishay Siliconix

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VCS1625Z (Z-Foil)
Vishay Foil Resistors
Ultra High Precision Z-Foil Surface Mount Current
Sensing Chip Resistors with TCR of ± 0.05 ppm/°C and
Power Coefficient of 5 ppm at Rated Power
www.vishay.com
For any questions, contact: foil@vishay.com
Document Number: 63094
2
Revision: 25-Feb-08
Note
1. Measurement error 0.001 R
FIGURE 2 - DIMENSIONS in inches (millimeters)
INCHES
MILLIMETERS
L
0.250 ± 0.010
6.35 ± 0.25
H
0.160 ± 0.010
4.06 ± 0.25
W
0.040 maximum
1.02 maximum
A
0.080 ± 0.005
2.03 ± 0.13
B
0.040 ± 0.010
1.02 ± 0.25
Solder Pad Layout
0.260
(6.60)
0.070
(1.78)
L
H
W
A
B
I2
I1
E1
E2
Top View
Bottom View
Mounting
Pads (4)
I
1
E
1
I2
E
2
Electrical
Schematic
R
FIGURE 3 - TRIMMING TO VALUES
(Conceptual Illustration)
Mutual Inductance
Reduction due
to Opposing
Current in
Adjacent Lines
Current Path
Before Trimming
Note: Foil shown in black, etched spaces in white
Interloop Capacitance
Reduction in Series
Trimming Process
Removes this Material
from Shorting Strip Area
Changing Current Path
and Increasing
Resistance
Current Path
After Trimming
FIGURE 4 - TYPICAL TCR CURVE Z-FOIL
+ 500
+ 200
+ 100
0
- 100
- 200
- 300
- 500
- 55
- 25
+ 25
+ 60
+ 75
+ 100
+ 125
Ambient Temperature (°C)
∆R
R
(ppm)
0
0.05 ppm/°C
- 0.1 ppm/°C
0.1 ppm/°C
0.14 ppm/°C
0.2 ppm/°C
- 0.16 ppm/°C
- 400
+ 300
+ 400
TABLE 2 - PERFORMANCE SPECIFICATIONS
TEST
MIL-PRF-55342
ΔR LIMITS
TYPICAL
ΔR LIMITS
MAXIMUM
ΔR LIMITS1)
Thermal shock 5 x (- 65 °C to + 150 °C)
± 0.10 %
± 0.005 % (50 ppm)
± 0.01 % (100 ppm)
Low temperature operation
± 0.10 %
± 0.005 % (50 ppm)
± 0.01 % (100 ppm)
Short time overload
± 0.10 %
± 0.005 % (50 ppm)
± 0.02 % (200 ppm)
High temperature exposure
± 0.10 %
± 0.01 % (100 ppm)
± 0.02 % (200 ppm)
Resistance to soldering heat
± 0.2 %
± 0.01 % (100 ppm)
± 0.03 % (300 ppm)
Moisture resistance
± 0.2 %
± 0.01 % (100 ppm)
± 0.03 % (300 ppm)
Load life 2000 h at 70 °C: rated power on ceramic PCB
± 0.5 %
± 0.02 % (200 ppm)
± 0.04 % (400 ppm)



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