CF
resistors
carbon film leaded resistors
EU
features
•
•
•
•
Flameproof coating is available (specify “CFP”)
Reduced body size (specify “CFS/CFPS”)
Suitable for automatic machine insertion
Marking: Beige body color with color-coded bands on CF
Green body color with color-coded bands on CFP
Ivory body color with color-coded bands on CFS1/4
•
Products with lead-free terminations meet EU RoHS
and China RoHS requirements
dimensions and construction
L
D
Trimming Line
Ceramic Core
d
l
Type
L
CFS1/4
.126±.008
CFPS1/4
(3.2±0.2)
CF1/4
CFP1/4
Marking
Resistive
Film
End
Cap
Lead
Wire
CF1/2
CFP1/2
CFS1/2
CFPS1/2
.240±0.2
(6.1±0.5)
.335±0.2
(8.5±0.5)
.248±.02
(6.3±0.5)
Dimensions
inches
(mm)
C (max.)
D
d (nom.)
.134
(3.4)
.280
(7.1)
.374
(9.5)
.280
(7.1)
.067±.008
(1.7±0.2)
.092±.012
(2.3±0.3)
.118±.012
(3.0±0.3)
.112±.012
(2.85±0.3)
.018
(0.45)
.024
(0.6)
.028
(0.7)
.024
(0.6)
0.008 Min.
(20.0 Min.)
l
Insulation Coating
C
ordering information
New Part #
CF
Type
CF
CFP
1/4
Power
Rating
S1/4: 0.25W
1/4: 0.25W
1/2: 0.5W
S1/2: 0.5W
C
Termination
Material
C: SnCu
T52
Taping and Forming
Axial: T26, T52, L52
Radial: VT, MT, MHT, VTP, VTE
U Forming: U, UCL
M Forming: M5, M10, M12.5
L Forming: L10, L12.5
R
Packaging
A: Ammo
R: Reel
103
Nominal
Resistance
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
J
Tolerance
G: ±2%
J: ±5%
For further information
on packaging, please refer
to Appendix C.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
1/09/09
110
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
CF
carbon film leaded resistors
applications and ratings
Part
Designation
CFS1/4
CFPS1/4
CF1/4
CFP1/4
CF1/2*
CFP1/2*
CFS1/2
CFPS1/2
* Not recommended for new designs.
0.50W
700V
2.2Ω - 91kΩ 100kΩ - 1MΩ
0.25W
500V
2.2Ω - 100kΩ
110kΩ - 1MΩ
110kΩ - 330kΩ 360kΩ - 1MΩ
Minimum
Power
Dielectric
Rating
Withstanding
@ 70°C
+350 to -450
Voltage
300V
T.C.R.
(ppm/°C)
0 to -700
0 to -1000
0 to -1300
Resistance Resistance
Range
Range
E-24
E-24
(G±2%)
(J±5%)
10Ω - 330kΩ 2.2Ω - 1MΩ
10Ω - 100kΩ 2.2Ω - 1MΩ
2.2Ω - 5.1MΩ
2.2Ω - 1MΩ
10Ω - 1MΩ
2.2Ω - 5.1MΩ
2.2Ω - 1MΩ
2.2Ω - 5.1MΩ
2.2Ω - 1MΩ
Absolute
Maximum
Working
Voltage
250V
300V
400V
350V
Absolute
Maximum
Overload
Voltage
500V
600V
800V
700V
resistors
2.2Ω - 47kΩ 51kΩ - 100kΩ 110kΩ - 330kΩ 360kΩ - 1MΩ
1.1MΩ - 5.1MΩ
—
—
—
1.1MΩ - 2.2MΩ 2.4MΩ - 5.1MΩ
—
—
1.1MΩ - 2.2MΩ 2.4MΩ - 5.1MΩ
environmental applications
Derating Curve
100
80
% Rated Power
60
40
20
0
-60 -40 -20
-55
Temperature Rise (°C)
Surface Temperature Rise
60
50
Load Life @ 70°C, 1000 Hr
+2
CFP1/4
+1
∆
R/R (%)
40
30
20
10
0
0
25
50
75
CF1/2, CFP1/2
CF1/4, CFP1/4
0
-1
0
80 100 120 140 160
70
155
Ambient Temperature
(°C)
20
40
60
100
-2
10
100
1k
10k
100k
1M
% Rated Power
Resistance
(Ω)
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Solder Heat
Terminal Strength
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
Requirement
∆
R ±(% + 0.05Ω)
Limit
Typical
Within specified
—
tolerance
Within specified
—
T.C.R.
±1%
±0.5%
±1%
±0.5%
—
±0.5%
±2.5%
±1.5%
Test Method
Measuring points are at 10mm ±1mm from the end cap.
Room temperature +100°C
Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is lower
260°C ±5°C, 10 seconds ± 1 second
Twist 360°C, 5 times
-55°C (30 minutes), +125°C (30 minutes), 5 cycles
40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
No lead-coming off
and loose terminals
±1%
±5%
±3%
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/29/08
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
111
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