PL
IA
N
Features
■
Thick film technology
■
Power rating of 0.25, 0.5 or 1 watt at 70 °C
■
Strong pulse performance
■
RoHS compliant*
Applications
■
Power supplies
■
Stepper motor drives
*R
oH
S
CO
M
T
CRM0805/1206/2010 Chip Resistors
Electrical Characteristics
Characteristic
Power Rating @ 70 °C
Operating Temperature Range
Derated to Zero Load at
Maximum Working Voltage
0.047 to 0.91 ohms
1.0 ohm to 1.0 megohm
Insulation Resistance
Resistance Range
Resistance Tolerance
Temperature Coefficient
0.047 to 0.091 ohms
0.100 to 0.91 ohms
1.0 ohm to 1 megohm
10 ohms to 1 megohm
477 mV
150 V
Model
CRM0805
0.25 W
Model
CRM1206
0.5 W
-55 °C to +155 °C
+155 °C
675 mV
200 V
>1000 megohms
0.047 - 1 megohm
±1 %, ±5 %
±150 PPM/°C
±100 PPM/°C
±200 PPM/°C (Tolerance 5 %, E24 Values)
±100 PPM/°C (Tolerance 1 %, E96 Values)
954 mV
200 V
Model
CRM2010
1W
General Information
Bourns
®
CRM Series are thick film chip
resistors with high power ratings making
them suitable for different applications
in power supply circuits including
current sensing, current limiting and
high pulse resistance.
Characteristic Data
Test
Load Life (1000 hours)
Rated Voltage @ 70 °C
(1.5 hrs. on, 0.5 hrs. off)
1 % Tolerance
5 % Tolerance
Short Term Overload
(5 X Rated Power for 5 sec.)
1 % Tolerance
5 % Tolerance
Thermal Shock
(5 Cycles: -55 °C/30 min.;
+25 °C/2-3 min.; +155 °C/
30 min.; +25 °C/2-3 min.)
1 % Tolerance
5 % Tolerance
ΔR
Max.
<1%
<3%
<1%
<2%
Product Dimensions
L
T
W
D
C
DIMENSIONS:
MM
(INCHES)
< 0.5 %
<1%
Derating Curve
L
W
C
D
T
Model
CRM0805
CRM1206
CRM2010
Power Ratio (%)
100
2.00 ± 0.15
1.20 ± 0.15
0.40 ± 0.20
0.40 ± 0.20
0.50 ± 0.10
(0.079 ± 0.006) (0.047 ± 0.006) (0.016 ± 0.008) (0.016 ± 0.008) (0.020 ± 0.04)
3.10 ± 0.15
1.60 ± 0.15
0.50 ± 0.25
0.50 ± 0.25
0.55 ± 0.10
(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)
-55
70
155
Ambient Temperature (°C)
Recommended Solder Pad Layout
Model
CRM0805
CRM1206
CRM2010
A
1.3
(0.051)
1.8
(0.071)
3.0
(0.118)
B
1.15
(0.045)
1.3
(0.051)
1.5
(0.059)
L
1.2
(0.047)
2.1
(0.083)
3.8
(0.149)
Cu TRACE
SENSING TRACE
L
B
A
DIMENSIONS:
MM
(INCHES)
*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.
CRM0805/1206/2010 Chip Resistors
Soldering Profile
275
<1>
Maximum of 20 seconds between
Resistance Value Table (0.047-0.91
Ω)
260 °C peak
<1>
255 °C
Code
R047
R050
R Value
0.047
0.050
0.060
0.075
0.082
0.090
0.100
Code
R200
R300
R510
R750
R820
R910
R Value
0.200
0.300
0.510
0.750
0.820
0.910
+255 °C and +260 °C
225
220 °C
R060
Temperature (°C)
190 °C
175
150 °C
90 - 150
seconds
Ramp Down
6 °C/second
R075
R082
R090
125
60 - 120 seconds
10 seconds minimum
R100
75
Ramp Up
3 °C/second maximum
25
0
50
100
150
Time (seconds)
200
250
300
Pulse Voltage Curve
10000
1000
VOLTS (V)
100
CRM2010
CRM1206
CRM0805
10
1
10
100
1000
10000
100000
RESISTANCE (OHMS)
Test Method: 1.2/50
μs
Waveform with 12 Ohm Resistor, 5 Pulses at 12 Second Intervals
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
CRM0805/1206/2010 Chip Resistors
How to Order
CRM 2010 - F X - R100 E LF
Model
(CRM = Precision Chip Resistor)
Size
0805 = 0805 Size
1206 = 1206 Size
2010 = 2010 Size
Resistance Tolerance
• F = ±1 %
• J = ±5 %
TCR (PPM/°C)
• W = ±200 PPM/°C
• Z = ±150 PPM/°C
• X = ±100 PPM/°C
Resistance Value
R <1 ohm (1 % or 5 % Tolerance: “R” (decimal point) followed by three significant digits (example: R100 = 0.100 ohm
1% Tolerance:
<100 ohms ....... “R” represents decimal point (example: 24R3 = 24.3 ohms)
≥100
ohms ...... First three digits are significant, fourth digit represents number of zeros to follow
(example: 8252 = 82.5K ohms)
5% Tolerance:
<10 ohms ......... “R” represents decimal point (example: 4R7 = 4.7 ohms)
≥10
ohms ........ First two digits are significant, third digit represents number of zeros to follow
(example: 474 = 470K ohms)
Packaging
• E = 5000 pieces on 180 mm (7 inch) reel - CRM0805, CRM1206
4000 pieces on 180 mm (7 inch) reel - CRM2010
Termination
• LF = Tin-plated (RoHS Compliant)
Packaging Dimensions (Conforms to EIA RS-481A)
4.0
±
0.1
(.157
±
.004)
B
A
2.0
±
0.05
(.079
±
.002)
13.0 ± 1.0
(0.512 ± 0.039)
DIA.
180 +0/-3
(7.09 +0/-0.118)
DIA.
60.0
(2.362)
MIN.
DIA.
F
W
P0
1.5 +0.1/-0
(.056 + .004/-0)
1.75
±
0.1
(.059
±
.004)
15.4 ± 2.0
(0.606 ± 0.079)
Maximum 1 mm (.040) thick
* Cumulative over 10 holes: ±0.2 mm
DIMENSIONS:
MM
(INCHES)
13.0 ± 1.0
(0.512 ± 0.039)
Model
CRM0805
CRM1206
CRM2010
10/10
A
2.40 ± 0.20
(0.094 ± 0.008)
3.57 ± 0.20
(0.141 ± 0.008)
5.50 ± 0.20
(0.217 ± 0.008)
B
1.65 ± 0.20
(0.065 ± 0.008)
2.00 ± 0.20
(0.079 ± 0.008)
2.80 ± 0.20
(0.110 ± 0.008)
F
W
3.50 ± 0.05
8.00 ± 0.30
(0.138 ± 0.002) (0.315 ± 0.012)
3.50 ± 0.05
8.00 ± 0.30
(0.138 ± 0.002) (0.315 ± 0.012)
5.50 ± 0.05
12.00 ± 0.30
(0.217 ± 0.002) (0.472 ± 0.012)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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