Features
Applications
■ Power supplies
■ Stepper motor drives
■ Thick film technology
■ Power rating of 0.25, 0.5 or 1 watt at 70 °C
■ Strong pulse performance
■ RoHS compliant*
CRM0805/1206/2010 Chip Resistors
Electrical Characteristics
Characteristic
General Information
®
Bourns CRM Series are thick film chip
Model
Model
Model
resistors with high power ratings making
them suitable for different applications in
power supply circuits including current
sensing, current limiting and high pulse
resistance.
CRM0805
CRM1206
CRM2010
Power Rating @ 70 °C
Operating Temperature Range
Derated to Zero Load at
0.25 W
0.5 W
-55 °C to +155 °C
+155 °C
1 W
Maximum Working Voltage
Characteristic Data
0.047 to 0.91 ohms
477 mV
150 V
675 mV
200 V
>1000 megohms
954 mV
400 V
1.0 ohm to 1.0 megohm
Insulation Resistance
Resistance Range
Test
ΔR Max.
Load Life (1000 hours)
Rated Voltage @ 70 °C
(1.5 hrs. on, 0.5 hrs. off)
1 ꢀ Tolerance
0.047 - 0.91 ohm (E24 Values)
1.0 - 9.1 ohms (E24 Values)
10.0 ohms - 1 megohm (E24 + E96 Values)
< 1 ꢀ
< 3 ꢀ
5 ꢀ Tolerance
Resistance Tolerance
1 ꢀ, 5 ꢀ
Short Term Overload
(5 X Rated Power for 5 sec.)
1 ꢀ Tolerance
Temperature Coefficient
0.047 to 0.091 ohms
0.100 to 0.91 ohms
150 PPMꢁ°C
100 PPMꢁ°C
200 PPMꢁ°C
100 PPMꢁ°C
< 1 ꢀ
< 2 ꢀ
5 ꢀ Tolerance
1.0 ohm to 1 megohm
10 ohms to 1 megohm
Thermal Shock
(5 Cycles: -55 °Cꢁ30 min.;
+25 °Cꢁ2-3 min.; +155 °Cꢁ
30 min.; +25 °Cꢁ2-3 min.)
1 ꢀ Tolerance
For Standard Values Used in Capacitors, Inductors, and Resistors, click here.
< 0.5 ꢀ
< 1 ꢀ
Product Dimensions
5 ꢀ Tolerance
L
T
Derating Curve
MM
(INCHES)
DIMENSIONS:
W
D
100
C
Model
L
W
C
D
T
2.00 0.15
1.20 0.15
0.40 0.20
0.40 0.20
0.50 0.10
CRM0805
(0.079 0.006) (0.047 0.006) (0.016 0.008) (0.016 0.008) (0.020 0.04)
-55
70
155
3.10 0.15
(0.122 0.006) (0.063 0.006) (0.020 0.010) (0.020 0.010) (0.022 0.004)
5.00 0.20 2.50 0.20 0.60 0.25 0.60 0.25 0.60 0.10
(0.197 0.008) (0.098 0.008) (0.024 0.010) (0.024 0.010) (0.024 0.004)
1.60 0.15
0.50 0.25
0.50 0.25
0.55 0.10
Ambient Temperature (°C)
CRM1206
CRM2010
L
B
Recommended Solder Pad Layout
Model
A
B
L
A
1.3
1.15
1.2
CRM0805
(0.051)
(0.045)
(0.047)
1.8
1.3
2.1
CRM1206
CRM2010
Cu TRACE
(0.071)
(0.051)
(0.083)
SENSING TRACE
3.0
1.5
3.8
(0.118)
(0.059)
(0.149)
MM
(INCHES)
DIMENSIONS:
*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.
Customers should verify actual device performance in their specific applications.