
Features
■ Special alloy resistor
■ Power rating at 70 °C: 3 W
■ Inductance less than 5 nH
■ RoHS compliant*
■ AEC-Q200 qualifi ed, automotive grade
Applications
■ Power supplies
■ Stepper motor drives
■ Input amplifi ers
CRA2512 - High Power Current Sense Chip Resistor
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations 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 specifi c applications.
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 Coeffi cient ±75 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 Specifi cation
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