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VCS1625 bảng dữ liệu(PDF) 2 Page - Vishay Siliconix

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Giải thích chi tiết về linh kiện  High Precision Foil Surface Mount Current Sensing Chip Resistors with TCR of 짹 2 ppm/째C and Load Life Stability of 짹 0.02 %
PDF  4 Pages
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nhà sản xuất  VISHAY [Vishay Siliconix]
Trang chủ  http://www.vishay.com
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VCS1625 bảng dữ liệu(HTML) 2 Page - Vishay Siliconix

  VCS1625 Datasheet HTML 1Page - Vishay Siliconix VCS1625 Datasheet HTML 2Page - Vishay Siliconix VCS1625 Datasheet HTML 3Page - Vishay Siliconix VCS1625 Datasheet HTML 4Page - Vishay Siliconix  
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Document Number: 63023
For any questions, contact: foil@vishay.com
www.vishay.com
Revision: 19-Feb-08
2
VCS1625
High Precision Foil Surface Mount Current Sensing
Chip Resistors with TCR of ± 2 ppm/°C and
Load Life Stability of ± 0.02 %
Vishay Foil Resistors
Note
•
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
L
H
W
A
B
I2
I1
E1
E2
Solder Pad Layout
Top View
Bottom View
Mounting
Pads (4)
0.260
(6.60)
0.070
(1.78)
FIGURE 1 - 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
+ 75
+ 150
+ 100
+ 50
0
- 50
- 100
- 150
- 200
Ambient Temperature (°C)
∆R
R
(ppm)
± 2 ppm/°C (+ 25 °C reference)
+ 100
+ 125
- 25
0+ 25
+ 50
- 50
TABLE 2 - PERFORMANCE SPECIFICATIONS
TEST
MIL-PRF-55342
ΔR LIMITS
TYPICAL
ΔR LIMITS
MAXIMUM
ΔR LIMITS
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
± 0.20 %
± 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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