mercial Grade
Oxide Resistor
Resistors
High purity ceramic core
Commercial Grade
Metal Oxide Resistors
Commercial Grade
amic core
CMO Series
NOT RECOMMENDED FOR NEW DESIGNS
Metal Oxide Resistor
ype available
retardant coating
Non-inductive type available
CMO Series
rom 1/4W to 9W
Superior flame retardant coating
•
High purity ceramic core
Power ratings from 1/4W to 9W
2655A requirements
available
•
Non-inductive type
Meets EIA-RC2655A requirements
•
Superior flame retardant coating
ance in harsh environments
Stable performance in harsh environments
•
Power ratings from 1/4W to 9W
•
Meets EIA-RC2655A requirements
•
Stable performance in harsh environments
All parts are Pb-free and comply with EU Directive 2011/65/EU (RoHS2)
Data
Electrical Data
Power
Max.
Max.
Power
IRC Type
Resistance
Resistance Tolerance
Max.
TCR
Rating at
Range*
Working
Overload
Tolerance
TCR
(±%)
(±ppm/°C)
70°C (W)
(Ohms)
Voltage (V)
Voltage
Rating at
Range*
Working
(V)
(±%)
(±ppm/°C)
70°C (W)
(Ohms)
Voltage (V)
Standard Size
CMO-1/4
CMO-1/2
0.25
0.5
0.3 - 50K
0.3 - 50K
0.3 - 50K
0.3 - 50K
5 - 100K
5 - 150K
20 - 150K
30 - 200K
50 - 200K
2, 5, 10
350
250
250
350
350
500
750
750
750
400
400
Dielectric
Max.
Withstanding
Voltage (V)
Overload
Voltage (V)
250
250
W
V
0.25
CMO-1
0.5
1
2
3
5
7
8
9
CMO-2
CMO-3
CMO-5
CMO-7
CMO-8
CMO-9
Miniature Size
CMO-1/2S
CMO-1S
CMO-2S
CMO-3S
CMO-5SS
CMO-5S
0.3 -
1
50K
0.3 - 50K
3
2
250
600
250
600
800
400
350
350
500
400
0.3 -
5
50K
7
350
1000
1000
750
600
750
750
750
0.3 -
8
50K
9
5 - 100K
350
1000
500
1000
750
400
750
600
600
600
800
2, 5, 10
350
750
5 - 150K
0.5
20 - 150K
2
3
30 - 200K
1
0.3 - 50K
0.3 - 50K
0.3 - 50K
2, 5, 10
0.3 - 50K
5 - 100K
5 - 150K
350
250
350
350
350
500
500
1000
250
350
350
350
1000
500
500
1000
750
600
750
800
800
50 - 200K
5
5
1000
General
the right make changes in
IRC reserves
or liability.
0.5
information
Note
to to IRC’s
right
data
-
productconsidered
in
withoutatnotice of going to print.
notice or liability.
0.3
and is specification
product specification without
50K
TT Electronics
subject
the
own
to make changes
accurate time
All
is
reserves
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
General Note
BI Technologies IRC Welwyn
250
400
www.ttelectronics.com/resistors
A subsidiary of
TT electronics plc
1
© TT Electronics plc
0.3 - 50K
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
350
CMO Series Issue September 2008 Sheet 1 of 4
600
09.17
Commerical Grade
Metal Oxide Resistor
Commercial Grade
Metal Oxide Resistor
FOR NEW DESIGNS
CMO Series
NOT RECOMMENDED
Short-time overload
Dielectric withstanding voltage
Terminal strength
Resistance to Soldering heat
Pulse Overload
Solderability
Resistance to solvent
Temperature cycling
Load life in humidity
Load life
∆R/R
≤(±0.5%
+ 0.05Ω), with no evidence of mechanical damage.
No evidence of flashover, mechanical damage, arcing or insulation breakdown.
No evidence of mechanical damage.
∆R/R
≤(±1%
+ 0.05Ω), with no evidence of mechanical damage.
∆R/R
≤(±1%
+ 0.05Ω), with no evidence of mechanical damage.
Minimum 95% coverage.
No deterioration of protective coating and markings.
∆R/R
≤(±1%
+ 0.05Ω), with no evidence of mechanical damage.
Standard type:
∆R/R
±3% for <100KΩ, ±5% for
≥100KΩ;
Standard type:
∆R/R
±1.5% Flame retardant type: R/R ±5%
Environmental Data
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
CMO Series Issue September 2008 Sheet 2 of 4
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
09.17
Commerical Grade
Metal Oxide Resistor
Commercial Grade
Metal Oxide Resistor
CMO Series
NOT RECOMMENDED FOR NEW DESIGNS
Physical Data
d
D
H
L
H
Dimensions (mm)
IRC Type
Standard Size
CMO-1/4
CMO - 1/2
CMO-1
CMO-2
CMO-3
CMO-5
CMO-7
CMO-8
CMO-9
Miniature Size
CMO - 1/2S
CMO-1
S
CMO-2
S
CMO-3
S
CMO-5SS
CMO-5S
D (max.)
2.5
4.0
5.0
5.5
6.5
8.5
8.5
8.5
8.5
3.0
4.5
5.0
5.5
6.5
8.0
L (max.)
7.5
10.0
12.0
16.0
17.5
26.0
32.0
41.0
54.0
7.5
10.0
12.0
16.0
17.5
25.0
d (±0.02)
0.6
0.6
0.7
0.8
0.8
0.8
0.8
0.8
0.8
0.6
0.7
0.7
0.8
0.8
0.8
H (±3)
28
28
28
28
28
38
38
38
38
28
28
28
28
28
38
• Standard gray base color for standard size product; Blue color for miniature size product
• Standard non-flammable coating
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
CMO Series Issue September 2008 Sheet 3 of 4
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
09.17
Commerical Grade
Metal Oxide Resistor
Commercial Grade
Metal Oxide Resistor
CMO Series
NOT RECOMMENDED FOR NEW DESIGNS
Power Derating Curve
Percent Rated Load (%)
100
80
60
40
20
0
-60 -40 -20
0
20
CMO 1/4W - 1/2W
CMO 1W - 9W
-55°C
70°C
130°C
235°C
40 60 80 100 120 140 160 180 200 240
Ambient Temperature (°C)
Temperature Rise Chart
Temperature Rise (°C)
250
200
150
100
50
0
25
50
75
7W, 8W, 9W
5W
3W
2W
1W
1/4W, 1/2W
Ordering Data
Specify type, resistance, tolerance, RoHS-Compliance and packaging.
This example is for a Metal Oxide Resistor, 2-watt, 1000Ω resistor.
Sample Part No.
IRC Type
Power Rating
CMO
2
1001
J
LF
TR
(See specs table)
Resistance Value (EIA 4-digit code)
(≥100Ω - First 3 significant digits plus 4th digit multiplier)
Example: 100Ω = 1000, 1000Ω = 1001; 150KΩ = 1503
(>100Ω - "R" is used to designate decimal)
Example: 10Ω = 51R0, 1Ω = 1R00, 0.25Ω = R250
Tolerance (EIA format)
G = ±2%; J = ±5%; K = ±10%
RoHS- compliance
Packaging
LF = RoHS compliant construction
TR = tape and reel only
© IRC Advanced Film Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
CMO Series Issue September 2008 Sheet 4 of 4
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
09.17
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