rcial Grade
Commercial Grade
xide Resistor
CMO Series
Metal Oxide Resistor
Commercial Grade
·
High purity ceramic core
Metal Oxide Resistor
·
Non-inductive type available
core
available
Superior flame retardant coating
·
·
Power
CMO Series
rdant coating
ratings from 1/4W to 9W
Meets
·
High
EIA-RC2655A requirements
core
1/4W to
•
9W
purity ceramicavailable
•
Non-inductive type
·
Stable performance in harsh environments
•
Superior flame
5A requirements
retardant coating
NOT RECOMMENDED
•
Power ratings from 1/4W to 9W
e in harsh
Meets EIA-RC2655A requirements
environments
•
•
Stable performance in harsh environments
FOR NEW DESIGNS
ata
Electrical Data
IRC Type
Power
Rating at
70°C (W)
Resistance
Power
ating at
0°C (W)
Range*
Standard Size
CMO-1/4
CMO-1/2
CMO-1
(Ohms)
Tolerance
(±%)
0.3 - 50K
0.3 - 50K
0.3 - 50K
0.3 - 50K
5 - 100K
5 - 150K
20 - 150K
30 - 200K
50 - 200K
Resistance
Range*
(Ohms)
Tolerance
(±%)
TCR
(±ppm/°C)
TCR
(±ppm/°C)
Max.
Max.
Working
Overload
Voltage (V)
Max.
Voltage (V)
Dielectric
Withstanding
Voltage
Max.
(V)
0.25
0.5
1
Working
Voltage (V)
250
250
350
350
400
400
600
Overload
Voltage (V)
250
250
350
Diel
Withs
Volta
0.25
0.5
1
2
3
5
7
8
9
CMO-2
CMO-3
CMO-5
CMO-7
CMO-8
CMO-9
0.3 - 50K
2
0.3 - 50K
5
3
250
250
600
800
1000
1000
1000
1000
400
350
400
500
750
2
2, 5, 10
350
500
750
2
0.3 - 50K
7
0.3 - 50K
9
8
750
350
750
750
600
750
600
800
750
750
3
350
500
3
Miniature
5 - 100K
Size
CMO-1/2S
CMO-1S
CMO-2S
CMO-3S
0.5
2, 5, 10
0.3 - 50K
0.3 - 50K
0.3 - 50K
2, 5, 10
0.3 - 50K
5 - 100K
5 - 150K
350
250
350
350
350
350
5
400
250
5 - 150K
1
20 - 150K
3
2
750
750
600
600
600
800
800
1000
350
1000
350
350
7
7
30
CMO-5SS
CMO-5S
- 200K
5
5
500
750
500
1000
500
1000
500
7
50 - 200K
750
7
General Note
General
the right to make changes in product specification without notice or liability.
Note
IRC reserves
0.5
1
TT
information is subject to IRC’s own data and is considered accurate at time of going to print.
without notice or liability.
All
electronics reserves the right to make changes in product specification
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
© TT electronics plc
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
0.3 - 50K
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
CMO Series Issue September 2008 Sheet 1 of 4
250
400
600
A subsidiary of
TT electronics plc
2
0.3 - 50K
350
09. 11
3
Commercial Grade
Metal Oxide Resistor
Commercial Grade
Metal Oxide Resistor
CMO Series
NOT RECOMMENDED FOR NEW DESIGNS
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.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
07.13
Commercial 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
CMO-2
CMO-3
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.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
07.13
Commercial 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.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
07.13
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