CF
Carbon Film Resistors
INTRODUCTION
The Carbon Film Resistors are highly reliable. These resistors are pyrolytically deposited and
manufactured in streamlined automated assembly facilities under strict quality control procedures.
The stable performance is achieved with the technology of film deposition onto a ceramic core with
excellent thermal conductivity, mechanical strength and good electrical properties. Together with
multi layers of epoxy coatings, the Carbon Film Resistors offer stability with long term reliability.
14
FEATURES
•
•
•
•
Small size with high power ratings.
Excellent long term stability.
Wide Resistance Range.
Lead Free
RATINGS
Type
Power Rating @ 70ºC
Operating Temp. Range
Derated to 0 Load at
Maximum Working Voltage
Maximum Overload Voltage
Resistance Range
2%, E-24
5%, E-24
DIMENSIONS
CF 1/6
1/6W
CF 1/4
1/4W
CF1/4SS
1/4W
CF 1/2
CF1/2SS
1/2W
CF 1
1W
CF 2
2W
200V
400V
10Ω-1MΩ
1Ω-22MΩ
250V
500V
10Ω-1MΩ
1Ω-22MΩ
1/2W
-55ºC to +155ºC
+155ºC
250V
350V
500V
700V
10Ω-1MΩ
1Ω-22MΩ
350V
700V
10Ω-1MΩ
1Ω-22MΩ
500V
700V
500V
1000V
10Ω-1MΩ
1Ω-22MΩ
10Ω-1MΩ 10Ω-1MΩ
1Ω-22MΩ 1Ω-22MΩ
l
L
ød
øD
C
Type
CF1/6 / CF1/4SS
CF1/4 / CF1/2SS
CF1/2
CF 1
CF 2
DIMENSIONS
L
3.00± 0.4
6.35± 0.5
9.00± 0.5
12.00± 1.0
16.00± 1.0
(Millimeters)
C
3.5 Max
7.1 Max
11.8 Max
15.0 Max
22.0 Max
D
1.70± 0.2
2.30± 0.3
3.20± 0.5
4.50± 0.5
5.00± 0.5
l
28.0± 3.0
28.0± 3.0
28.0± 3.0
35.0± 3.0
35.0± 3.0
d
0.45± 0.05
0.60± 0.05
0.60± 0.05
0.80± 0.05
0.80± 0.05
ASJ PTE LTD
CF
Carbon Film Resistors
PERFORMANCE CHARACTERISTICS
Performance Test
DC Resistance
Resistance Temperature Coefficient
0.15≤ 100Ω
>100Ω≤ 1KΩ
>1KΩ≤ 100KΩ
>100KΩ≤ 1MΩ
>1MΩ≤ 5.1MΩ
R>5.1MΩ
Test Method
MIL-STD-202F, Method 303
MIL-STD-202F, Method 304
Specification
±
2%,
±
5% Tolerance
±
300ppm/ºC
-450 to +0ppm/ºC
-750 to +0ppm/ºC
-1000 to +0ppm/ºC
-1750 to +350ppm/ºC
-2200 to 350ppm/ºC
15
Short Time Overload
Dielectric Withstanding Voltage
Insulation Resistance
Current Noise
1K
>1K-10K
>10K-100K
>100K-910K
>1M-2.2M
>2.2M-5.1M
>5.1M-10M
MIL-R-55342E, Sect. 4.7.5
MIL-STD-202F, Method 301
MIL-STD-202F, Method 302
MIL-STD-202F, Method 308
±
(0.3% + 0.05Ω)
±
(0.5% + 0.05Ω) No Mechanical Damage
>10
3
MΩ
<0.1µ v/v
<0.2µ v/v
<0.3µ v/v
<0.6µ v/v
<2µ v/v
<3µ v/v
<20µ v/v
Solderability
Resistance to Soldering Heat
Robustness of electrode
(Terminal Strength)
Resistance to Solvents
Moisture Resistance
Temperature Cycling
Low Temperature Operation
High Temperature Exposure
Thermal Shock
Loadllife
<100KΩ
≥
100KΩ
MIL-STD-202F, Method 208
MIL-R-55342E, Sect. 4.7.7
MIL-STD-202F, Method 211
MIL-STD-202F, Method 215
MIL-STD-202F, Method 106
MIL-STD-883F, Method 1010.7
MIL-R-55342E, Sect. 4.7.4
MIL-R-55342E, Sect. 4.7.6
MIL-STD-202F, Method 107
MIL-STD-202F, Method 108
MIL-STD-202F, Method 108
>95% coverage
±
(0.5% + 0.05Ω)
±
(0.5% + 0.05Ω) No Mechanical Damage
No Damage to lacquer & colour coding
±
(1.5% + 0.05Ω)
±
(1.0% + 0.05Ω)
±
(0.5% + 0.05Ω)
±
(1.0% + 0.05Ω)
±
(1.0% + 0.05Ω)
±
(2.0% + 0.05Ω)
±
(3.0% + 0.05Ω)
DERATING CURVE
100
Rated Power (%)
80
60
40
20
-55ºC
70ºC
155ºC
0
-60
-40
-20
0
20
40
60
80
100
120
140
160
180
200
Ambient Temperature (ºC)
ORDERING CODE
CF XXXXX
-
XXX X
-
X X
Resistor
Carbon
Film
Size
1/6
1/4SS
1/4
1/2SS
1/2
1
2
Nominal Resistance
3-
Resistors Digit
E24 Series
2.2Ω=2R2
100Ω=101
Resistance
Tolerance
G=± 2%
J=± 5%
Packaging
A=Ammo (52MM)
S=Spool (52MM)
M=Ammo (26MM)
R=Spool (26MM)
N=Ammo (73MM)
Q=Spool (73MM)
Quantity
1 = 1000 pcs
2 = 2000 pcs
3 = 3000 pcs
5 = 5000 pcs
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