CSR Datasheet, PDF (2/2 Pages) MERITEK ELECTRONICS CORPORATION – Current Sensing Chip Resistor

CSR
four-terminal current sense resistor
typical circuit schematic
Input
Detecting
Circuit
C
S
Output
R
Voltage Terminal
(KELVIN terminal)
Current Terminal
applications and ratings
Part
Designation
CSR1
CSR2
Power
Rating
1W
2W
T.C.R.
(ppm/°C)
Max.
±50
Resistance
Range
E-12
5mΩ - 50mΩ
Resistance
Tolerance
D: ±0.5%,F: ±1%
F: ±1%
Rated
Ambient
Temperature
+70°C
Operating
Temperature
Range
-55°C to +125°C
environmental applications
Derating Curve
Surface Temperature Rise
CSR1
CSR2
100
175
175
80
150
150
CSR2
125
125
60
100
100
CSR1
40
75
75
CSR2
50
CSR1
50
20
25
25
0
-60 -40 -20
-55
0 20 40 60 80
70
Ambient Temperature
(°C)
100 120 140
125
For resistors operated at an ambient temperature of 70°C
or above, a power rating shall be derated in accordance
with the above derating curve.
0
0 25 50 75 100
% Rated Power
2
00 _{25 50 75 100}
1
% Rated Power
20mΩ
10mm pattan
Regarding the temperature rise, the ^S1value of the temperature varies per
conditions and board for use since the temperature is measured under
our measuring conditions. Please refer to us before use.
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short Time)
Resistance to Solder Heat
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
Low Temperature Exposure
High Temperature Exposure
Requirement ∆R ±%
Limit
Typical
Within regulated
tolerance
—
Within specified
T.C.R.
—
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±0.5%
±2.0%
±0.5%
±1.0%
±0.5%
±0.5%
±0.25%
±0.5%
±0.25%
25°C
Test Method
+25°C/+125°C
Rated power x 5 for 5 seconds
260°C ± 5°C, 10 seconds ± 1 second
-55°C (30 minutes), +125°C (30 minutes), 500 cycles
40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
-55°C, 1 hour
+125°C, 100 hours
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/13/14
74 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: [phone] • www.koaspeer.com