CRA2512 Series Datasheet

Bourns Inc.

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Datasheet

Features
Special alloy resistor
Power rating at 70 °C: 3 W
Inductance less than 5 nH
RoHS compliant*
AEC-Q200 qualified
Applications
Power supplies
Stepper motor drives
Input amplifiers
CRA2512 - High Power Current Sense Chip Resistor
DIMENSIONS: MM
(INCHES)
Electrical Characteristics
Characteristic CRA2512
Power Rating @ 70 °C 3 W
Operating Temperature Range -55 °C to +170 °C
Derated to Zero Load at +170 °C
Maximum Working Current (P / R)1/2
Insulation Resistance > 100 megohms
Resistance Range 0.010 - 0.100 Ω
Resistance Tolerance ±1 %, ±5 %
Temperature ±50 PPM/°C
Product Dimensions
Model A B C T Resistor
Material
CRA2512 6.45 ± 0.20 3.35 ± 0.20 0.95 ± 0.10 0.7 ± 0.20 Resistor Cu-Ni
(0.254 ± 0.008) (0.131 ± 0.008) (0.037 ± 0.004) (0.0276 ± 0.008) or Cu-Mn
Recommended Solder Pad Layout
A
B
SENSING TRACE
Cu TRACE
L
Model A B L
CRA2512 4.0 2.1 4.1
(0.157) (0.083) (0.161)
A
B
CC
T
CC
Construction
Overcoat
Metal Alloy Plate
Ni / Sn
Plating
Performance Characteristics
Test Conditions
Thermal Shock
-55 ˚C to + 150 ˚C, ΔR < ±0.5 %
1000 Cycles, 15 minutes
Short Time Overload 5 X Rated Power for 5 seconds ΔR < ±0.5 %
Low Temperature -55 ˚C for 24 hours ΔR < ±0.5 %
Storage
High Temperature
Exposure 1000 hours @ + 170 ˚C ΔR < ±1.0 %
Bias Humidity + 85 ˚C, 85 % RH, 10 % Bias, ΔR < ±0.5 %
1000 hours
Mechanical Shock 100 g’s for 6 milliseconds, 5 pulses ΔR < ±0.5 %
Vibration Frequency varied 10 to 2000 KHz ΔR < ±0.5 %
in one minute, 3 directions, 12 hours
Load Life 1000 hours at rated power at ΔR < ±1.0 %
+70 ˚C, 1.5 hours on, 0.5 hours off
Resistance to Solder +260 ˚C Solder, 10-12 second dwell, ΔR < ±0.5 %
Heat 25 mm/second emergence
Moisture Resistance MIL-STD-202 Method 106, 0 % power ΔR < ±0.5 %
(7a and 7b not required)
DIMENSIONS: MM
(INCHES)
*RoHS COMPLIANT
& AEC-Q200 QUALIFIED
R010
*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. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
CRA 2512 - F Z - R020 E LF
Model
(CRA = Precision Chip Resistor
Size
2512 = 2512 Size
Resistance Tolerance
• F = ±1 %
• J = ±5 %
TCR (PPM/°C)
• Z = ±50 PPM/°C
Resistance Value
“R” (decimal point) followed by three digits (example: R025 = 0.025 ohm)
Packaging
• E = 4000 pieces on 180 mm (7 inch) reel
Termination
• LF = Tin-plated (RoHS compliant)
How to Order
CRA2512 - High Power Current Sense Chip Resistor
Packaging Dimensions (Conforms to EIA RS-481A)
REV. 11/18
3.60 ± 0.20
(0.142 ± 0.008) 2.0 ± 0.05
(0.079 ± 0.002)
4.0 ± 0.05
(0.157 ± 0.002)
4.0 ± 0.1
(0.157 ± 0.004)
1.5 +0.1/-0
(0.059 +0.004/-0) DIA. 1.5
(0.059)
DIA. MIN.
1.2 ± 0.15
(0.047 ± 0.006)
6.9 ± 0.2
(0.272 ± 0.008)
5.5 ± 0.05
(0.217 ± 0.002)
1.75 ± 0.1
(0.069 ± 0.004)
12.0 ± 0.2
(0.472 ± 0.008)
TOP TAPE
EMBOSSED TAPE
RESISTOR
USER DIRECTION OF FEED
60.0
(2.362)
MIN.
DIA.
DIA.
180 +0/-3
(7.09 +0/-0.118)
13.0 ± 1.0
(0.512 ± 0.039)
DIA.
15.4 ± 2.0
(0.606 ± 0.079)
13.0 ± 1.0
(0.512 ± 0.039)
CRA2512 Resistance Values Available
Code R Value Code R Value
R010 0.010 R050 0.050
R015 0.015 R060 0.060
R020 0.020 R070 0.070
R025 0.025 R075 0.075
R030 0.030 R080 0.080
R040 0.040 R100 0.100
Consult factory for other resistance values.
DIMENSIONS: MM
(INCHES)
25
75
125
175
225
275
0 50 100 150 200 250 300
Time (seconds)
Temperature (°C)
60 - 120 seconds
90 - 150
seconds
260 °C peak
190 °C
150 °C
220 °C
Ramp Down
6 °C/second
255 °C
Maximum of 20 seconds between
+255 °C and +260 °C
Ramp Up
3 °C/second maximum
10 seconds minimum
<1>
<1>
Soldering
Ambient Temperature (°C)
70 170
100
-55
Power Ratio (%)
Derating Curve
Can be soldered in accordance with IPC/JEDEC-J-STD-020.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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RES 0.04 OHM 1% 3W 2512
Cantidad disponible26502
Precio por unidad0.69
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Cantidad disponible27627
Precio por unidad0.69
RES 0.015 OHM 1% 3W 2512
Cantidad disponible23844
Precio por unidad0.69
RES 0.07 OHM 1% 3W 2512
Cantidad disponible35073
Precio por unidad0.69
RES 0.075 OHM 1% 3W 2512
Cantidad disponible3163
Precio por unidad0.69
RES 0.01 OHM 5% 3W 2512
Cantidad disponible0
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Cantidad disponible0
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Cantidad disponible0
Precio por unidad0.20475
RES 0.025 OHM 5% 3W 2512
Cantidad disponible0
Precio por unidad0.20475
RES 0.03 OHM 5% 3W 2512
Cantidad disponible0
Precio por unidad0.20475
RES 0.034 OHM 5% 3W 2512
Cantidad disponible0
Precio por unidad0.20475
RES 0.04 OHM 5% 3W 2512
Cantidad disponible0
Precio por unidad0.20475
RES 0.045 OHM 5% 3W 2512
Cantidad disponible0
Precio por unidad0.20475
RES 0.05 OHM 5% 3W 2512
Cantidad disponible0
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