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Features
■
Thick film technology
■
Power rating up to 2 watts at 70 °C
■
High power surge withstanding
■
Sulfur-resistant design, R
≥1 Ω
Additional Information
Click these links for more information:
(ASTM B-809)
■
RoHS compliant* and halogen free**
■
AEC-Q200 compliant
PRODUCT TECHNICAL INVENTORY SAMPLES
SELECTOR LIBRARY
CONTACT
CRM-A Series High Power Thick Film Resistor
Electrical Characteristics
Characteristic
Power Rating @ 70 °C
Operating Temperature Range
Derated to Zero Load at
Maximum Working Voltage
50 milliohms to 910 milliohms
1 ohm to 1 megohm
Maximum Overload Voltage
50 milliohms to 910 milliohms
1 ohm to 1 megohm
Resistance Tolerance
Temperature Coefficient
50 milliohms to 91 milliohms
(±0.5 %, ±1 %, ±5 %, E24 Series)
100 milliohms to 910 milliohms
(±0.5 %, ±1 %, ±5 %, E24 Series)
1 ohm to 9.76 ohms
(±0.5 %, ±1 %, E24 & E96 Series)
10 ohms to 1 megohm
(±0.5 %, ±1 %, E24 & E96 Series)
1 ohm to 1 megohm
(±5 %, E24 Series)
Model
CRM0603A
CRM0805A
CRM1206A
CRM1210A
CRM2010A
CRM2512A
0.125 W
0.25 W
0.5 W
0.5 W
-55 °C to +155 °C
+155 °C
675 mV
200 V
675 mV
200 V
1W
2W
477 mV
50 V
1066 mV
100 V
551 mV
150 V
1232 mV
300 V
954 mV
200 V
2133 mV
400 V
1349 mV
300 V
3017 mV
600 V
1508 mV
1508 mV
400 V
400 V
±0.5 %, ±1 %, ±5 %
±100 ppm
±100 ppm
±100 ppm
±100 ppm
±200 ppm
±100 ppm
±100 ppm
±100 ppm
±100 ppm
±200 ppm
±250 ppm
±150 ppm*
±200 ppm
±100 ppm
±200 ppm
±200 ppm
±100 ppm
±150 ppm*
±100 ppm
±200 ppm
±100 ppm
±100 ppm
±100 ppm
±100 ppm
±200 ppm
±100 ppm
±100 ppm
±100 ppm
±100 ppm
±200 ppm
* TCR code assigned as “X”; see How to Order.
For Standard Values Used in Capacitors, Inductors and Resistors,
click here.
Product Dimensions
Model
CRM0603A
CRM0805A
CRM1206A
CRM1210A
CRM2010A
CRM2512A
L
W
C
D
T
L
1.60 ± 0.10
0.80 ± 0.10
0.30 ± 0.20
0.30 ± 0.20
0.45 ± 0.10
(0.063 ± 0.004) (0.031 ± 0.004) (0.012 ± 0.008) (0.012 ± 0.008) (0.018 ± 0.04)
2.00 ± 0.10
1.25 ± 0.10
0.40 ± 0.20
0.40 ± 0.20
0.50 ± 0.10
(0.079 ± 0.004) (0.049 ± 0.004) (0.016 ± 0.008) (0.016 ± 0.008) (0.020 ± 0.04)
3.10 ± 0.10
1.60 ± 0.10
0.50 ± 0.25
0.50 ± 0.25
0.55 ± 0.10
(0.122 ± 0.004) (0.063 ± 0.004) (0.020 ± 0.010) (0.020 ± 0.010) (0.022 ± 0.004)
3.10 ± 0.10
2.60 ± 0.10
0.50 ± 0.25
0.50 ± 0.25
0.55 ± 0.10
(0.122 ± 0.004) (0.102 ± 0.004) (0.020 ± 0.010) (0.020 ± 0.010) (0.022 ± 0.004)
5.00 ± 0.20
2.50 ± 0.20
0.65 ± 0.25
0.60 ± 0.25
0.60 ± 0.10
(0.197 ± 0.008) (0.098 ± 0.008) (0.026 ± 0.010) (0.024 ± 0.010) (0.024 ± 0.004)
6.40 ± 0.20
3.10 ± 0.20
0.60 ± 0.25
1.80 ± 0.25
0.60 ± 0.15
(0.252 ± 0.008) (0.122 ± 0.008) (0.024 ± 0.010) (0.071 ± 0.010) (0.024 ± 0.006)
W
C
T
D
DIMENSIONS:
MM
(INCHES)
Recommended Solder Pad Layout
Model
CRM0603A
CRM0805A
CRM1206A
A
0.90
(0.035)
1.30
(0.051)
1.80
(0.071)
B
1.00
(0.039)
1.15
(0.045)
1.30
(0.051)
L
3.00
(0.118)
3.50
(0.138)
4.70
(0.185)
Model
CRM1210A
CRM2010A
CRM2512A
A
3.00
(0.118)
3.00
(0.118)
3.70
(0.032)
B
1.30
(0.051)
1.50
(0.059)
2.45
(0.096)
L
4.70
(0.185)
6.80
(0.268)
7.60
(0.299)
L
B
A
Cu TRACE
SENSING TRACE
WARNING Cancer and
Reproductive Harm
www.P65Warnings.ca.gov
* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
**Bourns considers a product to be “halogen free” if (a) the
Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl)
content is 900 ppm or less; and (c) the total Bromine (Br) and
Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as
set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
Applications
■
Power supplies
■
Stepper motor drives
CRM-A Series High Power Thick Film Resistor
How to Order
CRM 0603 A F W - 1002 E LF
Model
(CRM = High Power Thick Film Resistor)
Size
0603 = 0603 Size
0805 = 0805 Size
1206 = 1206 Size
1210 = 1210 Size
2010 = 2010 Size
2512 = 2512 Size
Feature
A = AEC-Q200 Compliant
Resistance Tolerance
D = ±0.5 %
F = ±1 %
J = ±5 %
TCR (See Electrical Characteristics chart)
• V = ±250 PPM/°C
• W = ±200 PPM/°C
• X = ±100 PPM/°C NOTE: CRM0805A 0.5%, 1 %, 1 ohm to 9.76 ohms: 150 PPM/°C
CRM0603A 0.5 %, 1 %, 5 %, 100 milliohms to 910 milliohms: 150 PPM/°C
Resistance Value
• 0.5 % or 1 % Tolerance:
<100 ohms........“R” represents decimal point
(example: 24R3 = 24.3 ohms)
ohms ........First three digits are significant, fourth digit represents number of zeros to follow
(example: 8252 = 82.5K ohms)
≥100
• 5 % Tolerance:
<10 ohms..........“R” represents decimal point
(example: 4R7 = 4.7 ohms)
ohms ..........First two digits are significant, third digit represents number of zeros to follow
(example: 474 = 470K ohms)
≥10
Packaging
• E = 5,000 pieces on 180 mm (7 inch) reel, paper tape - CRM0603A, CRM0805A, CRM1206A, CRM1210A
4,000 pieces on 180 mm (7 inch) reel, plastic tape - CRM2010A, CRM2512A
Termination
• LF = Tin-plated (RoHS Compliant)
Surge Performance
1000
PEAK POWER (WATTS)
100
10
CRM2512A
CRM2010A
CRM1206A
CRM0805A
CRM0603A
1
0.1
0.0001
0.001
0.01
0.1
1
PULSE DURATION (SECONDS)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
CRM-A Series High Power Thick Film Resistor
Typical Part Marking
CRM0603A, CRM0805A,
CRM1206A, CRM1210A,
CRM2010A, CRM2512A
E96 ±5 %
3 digits identify the
resistance value
CRM0805A, CRM1206A,
CRM1210A, CRM2010A,
CRM2512A
E24 / E96 ±1 %
4 digits identify the
resistance value
CRM0603A
E24 ±1 %
3 digits identify the
resistance value
CRM0603A
E96 ±1 %
3 digits identify the
resistance value
301
301 = 30 x 10
1
= 300 ohms
1542
1542 = 154 x 10
2
= 15.4K ohms
222
222 = 22 x 10
2
= 2.2K ohms
01B
01B = 1K ohms
(Refer to Marking Table below)
E96 Marking for CRM0603A, 1 %
Code R Value
01
02
03
04
05
06
07
08
09
10
11
12
100
102
105
107
110
113
115
118
121
124
127
130
Code
13
14
15
16
17
18
19
20
21
22
23
24
R Value
133
137
140
143
147
150
154
158
162
165
169
174
Code
25
26
27
28
29
30
31
32
33
34
35
36
R Value
178
182
187
191
196
200
205
210
215
221
226
232
Code
37
38
39
40
41
42
43
44
45
46
47
48
R Value Code
237
243
249
255
261
267
274
280
287
294
301
309
49
50
51
52
53
54
55
56
57
58
59
60
R Value
316
324
332
340
348
357
365
374
383
392
402
412
Code R Value
61
62
63
64
65
66
67
68
69
70
71
72
422
432
442
453
464
475
487
499
511
523
536
549
Code
73
74
75
76
77
78
79
80
81
82
83
84
R Value
562
576
590
604
619
634
649
665
681
698
715
732
Code R Value
85
86
87
88
89
90
91
92
93
94
95
96
750
768
787
806
825
845
866
887
909
931
953
976
This table shows the first two digits for the three-digit E96 part marking scheme. The third character is a letter multiplier:
A=10
0
B=10
1
C=10
2
D=10
3
E=10
4
F=10
5
G=10
-6
H=10
-7
X=10
-1
Y=10
-2
Z=10
-3
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
CRM-A Series High Power Thick Film Resistor
Performance Characteristics (AEC-Q200)
Test
High Temperature
Exposure Storage
Temperature Cycling
Moisture Resistance
Biased Humidity
Operational Life
Mechanical Shock
Vibration
Resistance to Solder Heat
Thermal Shock
ESD
Solderability
Flammability
Board Flex
Terminal Strength
Sulfur-resistant
(Applies only when
R
≥1
ohm)
Method
AEC-Q200 Table 7.3
AEC-Q200 Table 7.4
AEC-Q200 Table 7.6
AEC-Q200 Table 7.7
AEC-Q200 Table 7.8
AEC-Q200 Table 7.13
AEC-Q200 Table 7.14
AEC-Q200 Table 7.15
AEC-Q200 Table 7.16
AEC-Q200-002
AEC-Q200 Table 7.18
AEC-Q200 Table 7.20
AEC-Q200 Table 7.21
AEC-Q200 Table 7.22
ASTM B-809
Procedure
1,000 hours @ +125 °C; no power loading
-55 °C to +125 °C, 1,000 cycles
+65 °C / 80~100 % RH / 10 cycles
1,000 hours @ +85 °C / 85 % RH,
10 % operating power
1,000 hours @ +125 °C, at specified rated power
100 g, half-sine, 6 ms, velocity: 12.3 ft./sec.
5 g for 20 minutes, 12 cycles each of 3 durations;
10~200 Hz
+270 °C ±5 °C, 10 ±1 seconds
-55 °C to +155 °C, dwell time 15 minutes, max. transfer
time 20 seconds/300 cycles
1 kV min.
a) Backing +155 °C, 4 hours, dipping +235 °C, 5 seconds
b) Steam 8 hours, dipping +215 °C, 5 seconds
c) Steam 8 hours, dipping +260 °C, 7 seconds
UL 94 V-0 or V-1 are acceptable
Bending 2 mm (CRM1206A, 1210A, 2010A, 2512A)
Bending 3 mm (CRM0603A, 0805A)
Force 1.8 Kg for 60 seconds
+50 °C ±2 °C, 1,000 hours
Test Limits
ΔR
0.5 %, 1 % tolerance:
≤±1
%
5 % tolerance:
≤±3
%
0.5 %, 1 % tolerance:
≤±1
%
5 % tolerance:
≤±3
%
0.5 %, 1 % tolerance:
≤±0.5
%
5 % tolerance:
≤±1
%
0.5 %, 1 % tolerance:
≤±1
%
5 % tolerance:
≤±3
%
0.5 %, 1 % tolerance:
≤±1
%
5 % tolerance:
≤±3
%
Within product specification
tolerance; no visible damage
0.5 %, 1 % tolerance:
≤±0.5
%
5 % tolerance:
≤±1
%
0.5 %, 1 % tolerance:
≤±0.5
%
5 % tolerance:
≤±1
%
0.5 %, 1 % tolerance:
≤±0.5
%
5 % tolerance:
≤±1
%
≤±1
%
Over 95 % of the termination
must be covered with solder
Refer to UL 94
0.5 %, 1 % tolerance:
≤±0.5
%
5 % tolerance:
≤±1
%
No mechanical damage
≤±1
%
Soldering Profile
275
<1>
Maximum of 20 seconds between
Environmental Characteristics
260 °C peak
<1>
255 °C
Moisture Sensitivity Level ...........................................................1
Derating Curve
+255 °C and +260 °C
225
220 °C
Temperature (°C)
175
150 °C
Power Ratio (%)
190 °C
90 - 150
seconds
Ramp Down
6 °C/second
100
125
60 - 120 seconds
10 seconds minimum
75
Ramp Up
3 °C/second maximum
25
0
50
100
150
200
250
300
Time (seconds)
-55
70
155
Ambient Temperature (°C)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
CRM-A Series High Power Thick Film Resistor
Packaging Dimensions (Conforms to EIA RS-481A)
D
P0
F
E
Accumulated dimensional tolerance
W
40 ± 0.2
(1.575 ± .008)
DIMENSIONS:
A
P2
P1
B
MM
(INCHES)
Model
CRM0603A
CRM0805A
CRM1206A
CRM1210A
CRM2010A
CRM2512A
Tape Type
Paper
Paper
Paper
Paper
Plastic
Plastic
A
1.10 ± 0.20
(.043 ± .008)
1.65 ± 0.20
(.065 ± .008)
2.00 ± 0.20
(.079 ± .008)
3.00 ± 0.20
(.118 ± .008)
2.80 ± 0.20
(.110 ± .008)
3.50 ± 0.20
(.138 ± .008)
B
1.90 ± 0.20
(.075 ± .008)
2.40 ± 0.20
(.094 ± .008)
3.60 ± 0.20
(.142 ± .008)
3.60 ± 0.20
(.142 ± .008)
5.50 ± 0.20
(.217 ± .008)
6.70 ± 0.20
(.264 ± .008)
W
8.00 ± 0.30
(.315 ± .012)
8.00 ± 0.30
(.315 ± .012)
8.00 ± 0.30
(.315 ± .012)
8.00 ± 0.30
(.315 ± .012)
12.00 ± 0.30
(.472 ± .012)
12.00 ± 0.30
(.472 ± .012)
F
3.50 ± 0.05
(.138 ± .002)
3.50 ± 0.05
(.138 ± .002)
3.50 ± 0.05
(.138 ± .002)
3.50 ± 0.05
(.138 ± .002)
3.50 ± 0.05
(.138 ± .002)
3.50 ± 0.05
(.138 ± .002)
E
1.75 ± 0.10
(.069 ± .004)
1.75 ± 0.10
(.069 ± .004)
1.75 ± 0.10
(.069 ± .004)
1.75 ± 0.10
(.069 ± .004)
1.75 ± 0.10
(.069 ± .004)
1.75 ± 0.10
(.069 ± .004)
P1
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
P2
2.00 ± 0.05
(.079 ± .002)
2.00 ± 0.05
(.079 ± .002)
2.00 ± 0.05
(.079 ± .002)
2.00 ± 0.05
(.079 ± .002)
2.00 ± 0.05
(.079 ± .002)
2.00 ± 0.05
(.079 ± .002)
P0
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
4.00 ± 0.10
(.158 ± .004)
D
1.50 +0.10/-0
(.006 +.004/-0)
1.50 +0.10/-0
(.006 +.004/-0)
1.50 +0.10/-0
(.006 +.004/-0)
1.50 +0.10/-0
(.006 +.004/-0)
1.50 +0.10/-0
(.006 +.004/-0)
1.50 +0.10/-0
(.006 +.004/-0)
B
C
T
N
DIMENSIONS:
MM
(INCHES)
D
A
G
Model
CRM0603A
CRM0805A
CRM1206A
CRM1210A
CRM2010A
CRM2512A
Packaging
Quantity
5,000 pcs. per
reel
4,000 pcs. per
reel
A
N
C
D Min.
B
G
T Max.
1.78 ± 2.00
(.070 ± .079)
60 ± 0.50
(2.362 ± .020)
13.0 ± 0.50
(.512 ± .020)
20.0
(8.661)
2.00 ± 0.50
(.079 ± .020)
10.00 ± 1.50
(.394 ± .006)
14.9
(.587)
13.80 ± 1.50
(.543 ± .006)
16.7
(.657)
REV. 05/29/20
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
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