CRA2010/CRA2512 - High Power Current Sense Chip Resistor
Electrical Characteristics
Characteristic
Power Rating @ 70 °C
Operating Temperature Range
Derated to Zero Load at
Maximum Working Voltage
Insulation Resistance
Resistance Range
Resistance Tolerance
Temperature Coefficient
CRA2010
1W
-55 °C to +170 °C
+170 °C
(P x R)
1/2
> 100 megohms
0.005 - 0.020
Ω
0.010 - 0.100
Ω
Model
CRA2010
CRA2512
Specification
ΔR
±(0.5 % + 0.0005
Ω)
ΔR
±(0.5 % + 0.0005
Ω)
ΔR
±(0.5 % + 0.0005
Ω)
ΔR
±(1.0 % + 0.0005
Ω)
ΔR
±(0.5 % + 0.0005
Ω)
ΔR
±(0.5 % + 0.0005
Ω)
ΔR
±(0.5% + 0.0005
Ω)
ΔR
±(1.0% + 0.0005
Ω)
ΔR
±(0.5 % + 0.0005
Ω)
ΔR
±(0.5% + 0.0005
Ω)
Metal Alloy Plate
Ni / Sn
Plating
A
3.1
(0.122)
4.0
(0.157)
B
L
2.7
3.1
(0.106) (0.122)
2.1
4.1
(0.083) (0.161)
±1 %, ±5 %
±75 PPM/°C
Cu TRACE
SENSING TRACE
Recommended Solder Pad Layout
CRA2512
3W
A
L
B
Performance Characteristics
Test
Thermal Shock
Short Time Overload
Low Temperature
Storage
High Temperature
Exposure
Bias Humidity
Mechanical Shock
Vibration
Load Life
Resistance to Solder
Heat
Moisture Resistance
Conditions
-55 ˚C to + 150 ˚C,
1000 Cycles, 15 minutes
5 X Rated Power for 5 seconds
-55 ˚C for 24 hours
1000 hours @ + 170 ˚C
+ 85 ˚C, 85 % RH, 10 % Bias,
1000 hours
100 g’s for 6 milliseconds, 5 pulses
Frequency varied 10 to 2000 KHz
in one minute, 3 directions, 12 hours
1000 hours at rated power at
+70 ˚C, 1.5 hours on, 0.5 hours off
+260 ˚C Solder, 10-12 second dwell,
25 mm/second emergence
MIL-STD-202 Method 106, 0 % power
(7a and 7b not required)
DIMENSIONS:
MM
(INCHES)
Construction
Overcoat
Product Dimensions
A
T
B
C
C
C
C
Model
CRA2010
CRA2512
A
5.0 ± 0.20
(0.1962 ± 0.008)
6.45 ± 0.20
(0.254 ± 0.008)
B
2.5 ± 0.20
(0.0984 ± 0.008)
3.35 ± 0.20
(0.131 ± 0.008)
C
0.65 ± 0.20
(0.0256 ± 0.008)
0.95 ± 0.10
(0.037 ± 0.004)
T
0.6 ± 0.20
(0.0236 ± 0.008)
0.7 ± 0.20
(0.0276 ± 0.008)
Resistor
Material
Resistor Cu-Ni
or Cu-Mn
Resistor Cu-Ni
or Cu-Mn
DIMENSIONS:
MM
(INCHES)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Applications
■
Power supplies
■
Stepper motor drives
CRA2010/CRA2512 - High Power Current Sense Chip Resistor
Packaging Dimensions (Conforms to EIA RS-481A)
1.75 ± 0.1
(0.069 ± 0.004)
5.5 ± 0.05
(0.217 ± 0.002)
EMBOSSED TAPE
TOP TAPE
1.5 +0.1/-0
DIA.
(0.059 +0.004/-0)
1.5
(0.059)
DIA. MIN.
13.0 ± 1.0
(0.512 ± 0.039)
DIA.
180 +0/-3
(7.09 +0/-0.118)
DIA.
60.0
(2.362)
MIN.
DIA.
12.0 ± 0.2
(0.472 ± 0.008)
RESISTOR
3.60 ± 0.20
(0.142 ± 0.008)
1.2 ± 0.15
(0.047 ± 0.006)
4.0 ± 0.1
(0.157 ± 0.004)
2.0 ± 0.05
(0.079 ± 0.002)
4.0 ± 0.05
(0.157 ± 0.002)
6.9 ± 0.2
(0.272 ± 0.008)
USER DIRECTION OF FEED
DIMENSIONS:
MM
(INCHES)
15.4 ± 2.0
(0.606 ± 0.079)
13.0 ± 1.0
(0.512 ± 0.039)
CRA2010 Resistance Values Available
Code
R005
R010
R Value
0.005
0.010
Code
R015
R020
R Value
0.015
0.020
Soldering Profile
275
<1>
Maximum of 20 seconds between
260 °C peak
<1>
255 °C
+255 °C and +260 °C
225
220 °C
CRA2512 Resistance Values Available
Code
R010
R015
R020
R025
R030
R040
R Value
0.010
0.015
0.020
0.025
0.030
0.040
Code
R050
R060
R070
R075
R080
R100
R Value
0.050
0.060
0.070
0.075
0.080
0.100
Temperature (°C)
190 °C
175
150 °C
90 - 150
seconds
Ramp Down
6 °C/second
125
60 - 120 seconds
10 seconds minimum
75
Ramp Up
3 °C/second maximum
25
0
50
100
150
Time (seconds)
200
250
300
Consult factory for other resistance values.
Derating Curve
Power Ratio (%)
How to Order
CRA 2512 - F Z - R020 E LF
100
-55
70
170
Ambient Temperature (°C)
Model
(CRA = Precision Chip Resistor
Size
2010 = 2010 Size
2512 = 2512 Size
Resistance Tolerance
• F = ±1 %
• J = ±5 %
TCR (PPM/°C)
• Z = ±75 PPM/°C
Resistance Value
“R” (decimal point) followed by three significant digits (example: R025 = 0.025 ohm)
Packaging
• E = 4000 pieces on 180 mm (7 inch) reel
Termination
• LF = Tin-plated (RoHS compliant)
REV. 12/13
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
