cial Grade
Commercial Grade
m Resistor
Metal Film Resistor
Commercial Grade
resistor Resistor
·Metal
Metal filmFilm
CMF Series
· Conformal coating
· Power ratings from 1/8W to 3W
· Resistance range from 10Ω to 1MΩ
CMF Series
• Metal film resistor
8W to 3W
NOT RECOMMENDED
• Conformal coating
Power
from 1/8W to 3W
m 10Ω to•FOR
1MΩratings
NEW
DESIGNS
ta
wer
ng at
C (W)
125
25
.5
1
2
3
• Resistance range from 10Ω to 1MΩ
Electrical Data
IRC Type
Power
Rating at
70°C (W)
Resistance
Range
CMF-1/8
0.125
(Ohms)
Standard Size
CMF-1/4
0.25
CMF-1/2
0.5
Resistance
Range
(Ohms)
Tolerance
(±%)
Tolerance
(±%)
10 - 1M
TCR
(±ppm/°C)
TCR
(±ppm/°C)
1
Max.
Working
Voltage (V)
Max.
Overload
Voltage (V)
250
500
350
700
700
500
1000
1000
1000
400
1000
Max.
Working
200
400
Voltage (V)
100
CMF-1
1
CMF-2
2
500
CMF-3
3
500
Environmental Data
10 - 1M
Short-time overload
1
200
250
Dielectric
Withstanding
Voltage (V)
Max.
Overload
400
Voltage (V)
1000
350
100
500
1000
500
700
ΔR/R ≤(±0.5% + 0.05Ω), with no evidence of mechanical damage.
500
1000
Dielectric withstanding voltage
No evidence of flashover, mechanical damage, arcing or insulation breakdown.
Terminal strength
No evidence of mechanical damage.
Resistance to Soldering heat
ΔR/R ≤(±1% + 0.05Ω), with no evidence of mechanical damage.
Pulse Overload
ΔR/R ≤(±1% + 0.05Ω), with no evidence of mechanical damage.
Solderability
Minimum 95% coverage.
Resistance to solvent
No deterioration of protective coating and markings.
Temperature cycling
ΔR/R ≤(±1% + 0.05Ω), with no evidence of mechanical damage.
Load life in humidity
Standard type: ΔR/R ±3% for <100KΩ, ±5% for ≥100KΩ;
Load life
Standard type: ΔR/R ±1.5% Flame retardant type: R/R ±5%
al Data
ng voltage
General Note
General Note
1000
1000
ΔR/R ≤(±0.5% + 0.05Ω), with no evidence of mechanical damage.
No evidence of flashover, mechanical damage, arcing or insulation br
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
© IRC Advanced Film Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA
No evidence of mechanical damage.
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
ing heat
500
500
IRC reserves the right to make changes in product specification without notice or liability.
All
is subject
to IRC’s
datato
andmake
is considered
accurate
at time ofspecification
going to print. without notice or liability.
TTinformation
electronics
reserves
theown
right
changes
in product
© TT electronics plc
Di
With
Vo
A subsidiary of
TT electronics plc
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
CMF Series Issue May 2009 Sheet 1 of 3
07.13
ΔR/R ≤(±1% + 0.05Ω), with no evidence of mechanical damage.
Commercial Grade
Commercial
Grade Resistor
Metal Film
Metal Film Resistor
CMF Series NOT RECOMMENDED FOR NEW DESIGNS
Physical Data
d
D
H
L
H
Dimensions (mm)
Standard Size
IRC Type
D (max.)
L (max.)
d (±0.02)
H (±3)
CMF-1/8
1.85
3.5
0.5
28
CMF-1/4
2.5
6.8
0.6
28
CMF-1/2
3.5
10.0
0.6
28
CMF-1
5.0
12.0
0.7
28
CMF-2
5.5
16.0
0.8
28
CMF-3
6.5
17.5
0.8
28
© 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
CMF Series Issue May 2009 Sheet 2 of 3
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 Film Resistor
CMF Series NOT RECOMMENDED FOR NEW DESIGNS
Commercial Grade
Metal Film Resistor
Derating Curve
Percent Rated Load (%)
100
Hot Spot Temperature Curve
+155°C
+70°C
-55°C
200
Measuring position
80
150
CMF-200
60
100
CMF-100
50
CMF-50
CMF-25
CMF-12
40
20
-60
-30
0
30
60
90
0
120 150 180
25
50
75
100
Ambient Temperature (°C)
Ordering Data
Specify type, resistance, tolerance, RoHS-Compliance and packaging.
This example is for a Metal Film Resistor, 1-watt, 1000Ω resistor.
Sample Part No.
CMF
- 1
1001
F
LF
TR
IRC Type
CMF - Metal Film Resistor
Power Rating
(See specs table)
Resistance Value (EIA 4-digit code)
(≥100Ω - First 3 significant digits plus 4th digit multiplier)
Example: 100 ohms = 1000, 1000 ohms = 1001
(>100Ω - "R" is used to designate decimal)
Example: 10Ω = 10R0, 1Ω = 1R00, 51Ω = 51R0
Tolerance
F = ±1%; G = ±2%; J = ±5%
RoHS- compliance
LF = RoHS compliant construction
Packaging
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
CMF Series Issue May 2009 Sheet 3 of 3
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