CF1/4CT26A3R0G [KOA]
Fixed Resistor, Carbon Film, 0.25W, 3ohm, 300V, 2% +/-Tol, 450ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT;
| 型号： | CF1/4CT26A3R0G |
| 厂家： | 
KOA SPEER ELECTRONICS, INC. |
| 描述： | Fixed Resistor, Carbon Film, 0.25W, 3ohm, 300V, 2% +/-Tol, 450ppm/Cel, Through Hole Mount, AXIAL LEADED, ROHS COMPLIANT 电阻器 |
| 文件： | 总2页 (文件大小：92K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CF
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
Dimensions inches (mmꢀ
L
l
Trimming Line
Ceramic Core
D
Type
L
C (max.)
D
d (nom.)
l
CFS1/4
.126 .008
.134
(3.4ꢀ
.067 .008
(1.7±±.2ꢀ
.018
(±.45ꢀ
d
CFPS1/4 (3.2±±.2ꢀ
CF1/4
CFP1/4
.240 0.2
(6.1±±.5ꢀ
.280
(7.1ꢀ
.092 .012
(2.3±±.3ꢀ
.024
(±.6ꢀ
0.008 Min.
(2±.± Min.ꢀ
CF1/2
CFP1/2
.335 0.2
(8.5±±.5ꢀ
.374
(9.5ꢀ
.118 .012
(3.±±±.3ꢀ
.028
(±.7ꢀ
Marking
Resistive
Film
End
Cap
Lead
Wire
CFS1/2
.248 .02
.280
(7.1ꢀ
.112 .012
(2.85±±.3ꢀ
.024
(±.6ꢀ
CFPS1/2 (6.3±±.5ꢀ
Insulation Coating
C
ordering information
New Part #
CF
1/4
C
T52
R
103
J
Power
Rating
Termination
Material
Nominal
Resistance
Type
Taping and Forming
Packaging
Tolerance
CF
CFP
S1/4: 0.25W
1/4: 0.25W
1/2: 0.5W
C: SnCu
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
A: Ammo
R: Reel
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
G: 2%
J: 5%
S1/2: 0.5W
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
Minimum
Resistance Resistance Absolute
Absolute
T.C.R.
Power
Part
Designation
Dielectric
Withstanding
Voltage
Range
E-24
Range
E-24
(J 5ꢀ)
Maximum Maximum
(ppm/°C)
Rating
Working
Voltage
Overload
Voltage
@ 70°C
+350 to -450
0 to -700
0 to -1000
0 to -1300
(G 2ꢀ)
CFS1/4
CFPS1/4
CF1/4
10Ω - 330kΩ 2.2Ω - 1MΩ
10Ω - 100kΩ 2.2Ω - 1MΩ
2.2Ω - 5.1MΩ
300V
500V
2.2Ω - 47kΩ 51kΩ - 100kΩ 110kΩ - 330kΩ 360kΩ - 1MΩ
250V
300V
400V
350V
500V
600V
800V
700V
0.25W
0.50W
1.1MΩ - 5.1MΩ
110kΩ - 330kΩ 360kΩ - 1MΩ
CFP1/4
CF1/2*
—
2.2Ω - 1MΩ
2.2Ω - 100kΩ
1.1MΩ - 2.2MΩ 2.4MΩ - 5.1MΩ
110kΩ - 1MΩ
2.2Ω - 5.1MΩ
10Ω - 1MΩ
CFP1/2*
CFS1/2
CFPS1/2
—
—
2.2Ω - 1MΩ
700V
1.1MΩ - 2.2MΩ 2.4MΩ - 5.1MΩ
2.2Ω - 5.1MΩ
2.2Ω - 1MΩ
2.2Ω - 91kΩ 100kΩ - 1MΩ
—
—
* Not recommended for new designs.
environmental applications
Derating Curve
100
Surface Temperature Rise
60
Load Life @ 70°C, 1000 Hr
+2
CFP1/4
50
80
+1
0
40
30
20
CF1/2, CFP1/2
CF1/4, CFP1/4
60
40
-1
20
0
10
0
-2
-60 -40 -20
-55
0
20 40 60 80 100 120 140 160
0
25
50
75
100
10
100
1k
10k
100k
1M
70
Ambient Temperature
(°C)
155
% Rated Power
Resistance
(Ω)
Performance Characteristics
Requirement ∆ R (ꢀ + 0.05Ω)
Parameter
Resistance
Limit
Within specified
tolerance
Within specified
T.C.R.
Typical
Test Method
—
Measuring points are at 10mm 1mm from the end cap.
Room temperature +100°C
T.C.R.
—
Overload (Short time)
1%
1%
0.5%
0.5%
Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is lower
260°C 5°C, 10 seconds 1 second
Resistance to Solder Heat
No lead-coming off
and loose terminals
Terminal Strength
Twist 360°C, 5 times
—
Rapid Change of Temperature
Moisture Resistance
1%
5%
3%
0.5%
2.5%
1.5%
-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
Endurance at 70°C
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
111
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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