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
Characteristic
General Information
®
The Bourns CRM2512 Series is a
Model
Model
CRM2512
thick- 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.
CRM2512
(0.110 to 0.91 Ω)
(0 Ω, 1.0 Ω to 1.0 MΩ)
Power Rating @ 70 °C
Operating Temp. Range
Derated to Zero Load at
Maximum Working Voltage
Maximum Overload Voltage
Insulation Resistance
2 W
-55 °C to +155 °C
+155 °C
1349 mV
2698 mV
300 V
600 V
Characteristic Data
> 1000 MΩ
1 Ω - 9.1 Ω
0 Ω,
Test
ΔR Max.
0.110 - 0.91 Ω
(E24 Values)
10 Ω - 1 MΩ
(E96 Values)
1.0 - 1 MΩ
(E24 Values)
Resistance Range
(E24 Values)
Load Life (1000 hours)
1 % Tolerance
< 1 %
< 3 %
5 % Tolerance
Resistance Tolerance
Temperature Coefficient
1 % ꢀ 5 %
100 PPM/°C
5 %
200 PPM/°C
1 %
Short Term Overload
100 PPM/°C
1 % Tolerance
< 1 %
< 2 %
Notes:
5 % Tolerance
2
(1) CRM2512 2 W loading with total solder pad and trace size of 300 mm .
1/2
Thermal Shock
1 % Tolerance
5 % Tolerance
(2) E = (PxR)
E: Working Voltage (V); P: Rated Power (W); R: Resistance Value (Ω)
< 0.5 %
< 1 %
2
(3) Jumper (0 Ω): Rated current 6 A maximum with 300 mm pad.
For Standard Values Used in Capacitors, Inductors, and Resistors, click here.
Product Dimensions
Soldering Profile
6.3 ꢀ.ꢁꢀ
(ꢀ.ꢁ48 ꢀ.ꢀꢀ8ꢂ
250
Peak 260 +5/-0 °C
2ꢀ0 °C or higher
3.1 ꢀ.ꢁꢀ
(ꢀ.1ꢁꢁ ꢀ.ꢀꢀ8ꢂ
TOP SIDE
200
150
100
Pre-heating Zone
180 °C
150 °C
ꢀ.6 ꢀ.ꢁꢀ
(ꢀ.ꢀꢁ4 ꢀ.ꢀꢀ8ꢂ
ꢀ.6 ꢀ.ꢁꢀ
(ꢀ.ꢀꢁ4 ꢀ.ꢀꢀ8ꢂ
90 ꢀ0 ꢁeꢂonꢃꢁ
ꢀ0 10 ꢁeꢂonꢃꢁ
Solꢃering Zone
1.8 ꢀ.ꢁꢀ
50
(ꢀ.ꢀ7ꢀ ꢀ.ꢀꢀ8ꢂ
Heating Time
Recommended Solder Pad Layout
2.45
(.096)
Derating Curve
100
3.7
(.146)
7.6
(.299)
-55
70
155
MM
DIMENSIONS:
Ambient Temperature (°C)
(INCHES)
*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 device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.