Features
Applications
■ Power supplies
■ Stepper motor drives
■ Thick film technology
■ Power rating of 2 watts at 70 °C
■ RoHS compliant*
CRM2512 - Pulse Resistant Power Resistor
Electrical Characteristics
General Information
The Bourns® CRM2512 Series is a thick-
Power Rating @ 70 °C
2 W
film power resistor with a rating of 2
watts in a standard 2512 chip format.
This product has a very wide resistance
range making it suitable for different
applications in power supply circuits
including current sensing and inrush
current limiting.
Operating Temperature Range
Derated to Zero Load at
-55 °C to +155 °C
+155 °C
Maximum Working Voltage
0.047 to 0.91 ohms
3017 mV
600 V
1.0 ohm to 1.0 megohm
Insulation Resistance
Resistance Range
> 1000 megohms
0.047 - 0.91 ohm (E24 Values)
1.0 - 9.1 ohms (E24 Values)
Characteristic Data
10.0 ohms - 1 megohm (E24 + E96 Values)
Test
ΔR Max.
Resistance Tolerance
1 ꢀ% 5 ꢀ
Load Life (1000 hours)
1 ꢀ Tolerance
Temperature Coefficient
0.047 to 0.091 ohms
0.100 to 0.91 ohms
< 1 ꢀ
< 3 ꢀ
150 PPMꢁ°C
100 PPMꢁ°C
200 PPMꢁ°C
100 PPMꢁ°C
5 ꢀ Tolerance
Short Term Overload
1 ꢀ Tolerance
1.0 ohm to 1 megohm
10 ohms to 1 megohm
< 1 ꢀ
< 2 ꢀ
5 ꢀ Tolerance
For Standard Values Used in Capacitors% Inductors% and Resistors% click here.
Thermal Shock
1 ꢀ Tolerance
5 ꢀ Tolerance
< 0.5 ꢀ
< 1 ꢀ
Recommended Solder Pad Layout
L
B
Product Dimensions
6.3 0.20
(0.248 0.008)
MM
(INCHES)
DIMENSIONS:
A
3.1 0.20
(0.122 0.008)
TOP SIDE
Cu TRACE
SENSING TRACE
0.6 0.20
(0.024 0.008)
0.6 0.20
(0.024 0.008)
Model
A
B
L
3.7
(0.146)
2.45
(0.096)
2.7
(0.106)
CRM2512
1.8 0.20
(0.070 0.008)
Soldering Profile
Derating Curve
250
Peak 260 +5/-0 °C
2ꢀ0 °C or higher
100
200
150
100
Pre-heating Zone
180 °C
150 °C
90 ꢀ0 ꢁeꢂonꢃꢁ
-55
70
155
Ambient Temperature (°C)
ꢀ0 10 ꢁeꢂonꢃꢁ
Solꢃering Zone
50
Heating Time
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications