CRF Datasheet, PDF (1/2 Pages) Bourns Electronic Solutions – CRF Series - High Power Current Sense Chip Resistor

*RoHS ^COMPLIANT
Features
■ Resistance value as low as 0.001 ohm
■ High power density
■ Inductance less than 5 nH
■ RoHS compliant*
Applications
■ Power supplies
■ Stepper motor drives
CRF Series - High Power Current Sense Chip Resistor
Electrical Characteristics
Power Rating @ 70 °C
Operating Temperature Range
Derated to Zero Load at
Maximum Working Voltage
Insulation Resistance
Resistance Range
Resistance Tolerance
Temperature Coefficient
0.001 to 0.002 ohms
0.003 to 0.010 ohms
0.015 to 0.050 ohms
CRF1206
CRF2512
1W
(0.001 to 0.010 Ω) 2 W
(0.015 to 0.050 Ω) 1 W
-55 °C to +170 °C
+170 °C
(P x R)1/2
> 100 megohms
0.01 - 0.02 Ω
0.001 - 0.050 Ω
±1 %
±1 %, ±5 %
±275 PPM/°C
±100 PPM/°C
±75 PPM/°C
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)
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)
Recommended Solder Pad Layout
L
Cu TRACE
B
A
SENSING TRACE
Resistance
Range (Ω)
A
B
L
Model
0.01-
0.02
1.8
(0.07)
1.9
(0.075)
1.4
(0.055)
CRF1206
0.001-
0.002
0.003-
0.050
4.0
(0.157)
4.0
(0.157)
3.1
(0.122)
2.1
(0.083)
1.3
(0.051)
CRF2512
4.1
(0.161)
Product Dimensions
A
B
C
C
T
C
C
Dim. CRF1206
A ^{3.20 ± 0.20}
(0.126 ± 0.008)
B ^{1.65 ± 0.20}
(0.064 ± 0.008)
CRF2512
6.40 ± 0.20
(0.252 ± 0.008)
3.20 ± 0.20
(0.126 ± 0.008)
2.0 ± 0.20 (R ≤ 2m Ω)
0.5 ± 0.3 (0.079 ± 0.008 (R > 2m Ω))
C
(0.0197 ± 0.012) 0.9 ± 0.2 (R > 2m Ω)
(0.035 ± 0.008 (R ≤ 2m Ω))
T
0.6 ± 0.20
(0.0236 ± 0.008)
0.6 ± 0.20
(0.0236 ± 0.008)
DIMENSIONS:
MM
(INCHES)
Construction
Ni / Sn
Plating
Overcoat
Derating Curve
100
Metal Alloy Plate
-55
70
170
Ambient Temperature (°C)
*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.