供应：1/8W 1/4W 1/2W 1W 2W 3W 5W全系列
MIL-STD-105
MIL-STD-202
JIS C 5202
GB 5731-85
IEC 1
QC 400101
2. TYPE
It is composed of description , rated wattage , nominal resistance , tolerance and packaging.
2.1 Explanation of part numbers :
1 2 3 4 5 6 7 8 9 10 11 12 13
2.2 Example of expression :
Miniature type (small size) and Flame Proof type are also available.
Part Number Description
CF 12.5 4K7 J BP Carbon Film Fixed Resistor , 1/8W , 4.7KΩ, +/-5% tolerance , bulk pack.
TB / TR
2 26
5 52
Power Rating
Code Wattage
12.5 0.125(1/8W)
25 0.25(1/4W)
50 0.50(1/2W)
100 1.0(1W)
200 2.0(2W)
300 3.0(3W)
Resistance
Tolerance
Code Tol.
B 0.1%
C 0.25%
D 0.5%
F 1%
G 2%
J 5%
K 10%
Suffix for Packaging
& Special Product
BP Bulk Pack
TB Tape in Box
TR Tape in Reel
FP Flame Proof
Product
Code
C Carbon
F Film
Body
Size
S Small
Size
C F 1 2 .5 4 K 7 J B P
Nominal Resistance Value
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page 2/6
PRODUCT : CARBON FILM FIXED RESISTOR TYPE : CF –12.5/25/50/100/200/300
2.3 Color code indication for nominal resistance value and tolerance
Fixed resistors of which the nominal resistance value and tolerance are indicated by color codes
following the standard as below:
TABLE - 1
COLOR 1STDIGIT 2NDDIGIT MULTIPLIER TOLERANCE
BLACK 0 0 1
BROWN 1 1 10 F(±1%)
RED 2 2 100 G(±2%)
ORANGE 3 3 1,000
YELLOW 4 4 10,000
GREEN 5 5 100,000 D(±0.50%)
BLUE 6 6 1000,000 C(±0.25%)
VIOLET 7 7 10,000,000 B(±0.10%)
GREY 8 8
WHITE 9 9
GOLD 0.1 J (±5%)
SILVER 0.01 K (±10%)
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page 3/6
PRODUCT : CARBON FILM FIXED ESISTOR TYPE : CF –12.5/25/50/100/200/300
3. DIMENSIONS :
H L
ÆD
Unit : mm
BODY LEAD WIRE
TYPE
L D H d
CF-12.5(CF -25S) 3.5±0.5 1.7±0.5 28(24)±1 0.43(0.40)±0.05
CF-25(CF -50S) 6.5±0.5 2.3±0.5 27(23)±1 0.52 (0.43/ 0.48)±0.05
CF-50(CF -100S) 9.0±0.5 3.0±0.5 26±1 0.60±0.05
CF-100(CF -200S) 11.0±1 4.0±0.5 26(30)±1 0.60±0.05
CF-200(CF -300S) 15.0±1 5.0±0.5 24(35)±1 0.78±0.05
CF-300 17.0±1 6.0±0.5 24(35)±1 0.78±0.05
TABLE - 2
Æd
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page 4/6
PRODUCT : CARBON FILM FIXED ESISTOR TYPE : CF –12.5/25/50/100/200/300
4. SPECIFICATIONS
TABLE - 3
DESCRIPTION
內容 CF-12.5
CF-25
(CF-50S)
CF-50
(CF-50S)
CF-100
(CF-100S)
CF-200
(CF-200S)
CF-300
(CF-300S)
STANDARD RESISTANCE VALUE RANGE
標准阻值范圍 1Ω-4.7MΩ 1Ω-4.7MΩ 1Ω-4.7MΩ 1Ω-4.7MΩ 1Ω-4.7MΩ 1Ω-4.7MΩ
POWER RATING AT 70℃
額定功率(70℃) 1/8W 1/4W 1/2W 1W 2W 3W
MAX WORKING VOLTAGE
使用電壓 200V 250V 350V 500V 500V 500V
MAX OVERLOAD VOLTAGE
過負荷電壓 400V 500V 700V 1,000V 1,000V 1,000V
OPERATING TEMPERATURE RANGE
使用溫度范圍 -55℃~+135℃ -55℃~+135℃ -55℃~+135℃ -55℃~+155℃ -55℃~+155℃ -55℃~+155℃
TEMPERATURE COEFFICIENT
溫度特性
≦10Ω
10Ω- 220KΩ
230KΩ- 1MΩ
OVER 1MΩ
±300PPM
-500PPM
-1,000PPM
-1,500PPM
±300PPM
-500PPM
-1,000PPM
-1,500PPM
±300PPM
-500PPM
-700PPM
-1,000PPM
±300PPM
-400PPM
-600PPM
±300PPM
-400PPM
-600PPM
±300PPM
-400PPM
-600PPM
TEMPERATURE CYCLING
溫度循環 ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω)
VOLTAGE COEFFICIENT
電壓特性 MAX.50PPM/V MAX.50PPM/V MAX.50PPM/V MAX.50PPM/V MAX.50PPM/V MAX.50PPM/V
INSULATION RESISTANCE
絕緣電阻 MIN.1,000MΩ MIN.1,000MΩ MIN.1,000MΩ MIN.1,000MΩ MIN.1,000MΩ MIN.1,000MΩ
HUMIDITY
耐濕負荷壽命 ±3% ±3% ±3% ±3% ±3% ±3%
SHORT-TIME OVERLOAD
短時間過負荷 ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω)
SOLDERABILITY
焊錫性
MIN.95% COVERED MIN.95% COVERED MIN.95% COVERED MIN.95% COVERED MIN.95% COVERED MIN.95% COVERED
VIBRATION
耐震性 ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω) ±(1R%+0.05Ω)
LOAD LIFE
負載壽命 MAX.±5% MAX.±5% MAX.±5% MAX.±5% MAX.±5% MAX.±5%
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page 5/6
PRODUCT : CARBON FILM FIXED RESISTOR TYPE : CF –12.5/25/50/100/200/300
5. STRUCTURE DIAGRAM
TABLE - 4
n m qk o p j l
(1) CORE CERAMIC ROD
(2) RESISTANCE FILM CARBON FILM
(3) TERMINAL TINNED IRON CAP
(4) CONNECTION ELECTRIC WELDING
(5) LEAD WIRE SOLDERED OR TINNED ANNEALED COPPER WIRE
(6) UNDERCOAT ELECTRIC INSULATION VARNISH
(7) FINISHING PAINTING ELECTRIC INSULATION PAINT
(8) INDICATION COLOR CODE INK
MAX. TESTING VOLTAGE
RATED RESISTANCE VALUE
0.125W / 0.25W 0.5W / 1W / 2W / 3W
1Ω≦R<10Ω 0.3 0.3
10Ω≦R<100Ω 0.3 1
100Ω≦R<1KΩ 1 3
1KΩ≦R<10KΩ 3 10
10KΩ≦R<100KΩ 10 30
100KΩ≦R<1MΩ 30 50
1MΩ≦R 50 100
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page 6/6
PRODUCT : CARBON FILM FIXED RESISTOR TYPE : CF –12.5/25/50/100/200/300
6. CHARACTERISTICS
TABLE – 5
DC RESISTANCE VALUE TEST METHOD MIL-STD-202 ITEM 303
VOLTAGE AS TABLE -4.
TEMPERATURE 25℃±2℃.
AQL 0.25%.
VOLTAGE WITHSTAND TEST METHOD MIL-STD-202 ITEM 301
V-BLOCK METHOD.
VOLTAGE AS TABLE -3 ×1.42 , 1 MIN.
AQL 1%.
SHORT TIME OVERLOAD TEST METHOD JIS C 5202 ITEM 5.5
RATED VOLTAGE × 2.5 TIMES
OR MAX.WORKINGVOLTAGE × 2 TIMES.
ABOVE TEST 5 SEC.
THE RESISTANCE VALUE CHANGE RATE
SHALL BE WITHIN ±(1%R+0.05 Ω).
TERMINAL STRENGTH TEST METHOD MIL-STD-202 ITEM 211
TENSILE STRENGTH : 1K
TENSIONAL STRENGTH : 180°, 2 CYCLES.
BENDING STRENGTH : 0.5KG, 2 TIMES.
THE RESISTANCE VALUE CHANGE RATE
SHALL BE WITHIN ±(0.5%R+0.05 Ω).
SOLDERABILITY OF TERMINAL TEST METHOD MIL-STD-202 ITEM 210
260℃±5℃ 10±1SEC.
AFTER TESTING, LEAVE FOR 3 HOURS.
THE RESISTANCE VALUE CHANGE RATE
SHALL BE WITHIN ±(1%R+0.05 Ω).
TEMPERATURE CYCLE TEST METHOD MIL-STD-202 ITEM 107
LOW SIDE TEMPERATURE : -55℃±3℃ 30MIN.
ROOM TEMPERATURE : 10-15MIN.
HIGH SIDE TEMPERATURE :+125℃±3℃ 30MIN.
ROOM TEMPERATURE : 10-15MIN.
ABOVE TEST 5 CYCLES
AFTER LAST CYCLE, LEAVE FOR 1-3 HOURS.
THE RESISTANCE VALUE CHANGE RATE
SHALL BE WITHIN ±(1%R+0.05 Ω).
VIBRATION WITHSTAND TEST METHOD MIL-STD-202 ITEM 204
X, Y, Z-EACH DIRECTION 2 HOURS.
AMPLITUDE 0.75MM.
RANGE : 10HZ ~ 500HZ.
THE RESISTANCE VALUE CHANGE RATE
SHALL BE WITHIN ±(1%R+0.05 Ω).
LOAD LIFE TEST METHOD MIL-STD-202 ITEM 108
70℃±2℃. 1000 HOURS
RATED VOLTAGE (1.5 HOURS ON, 0.5 HOUR OFF).
THE RESISTANCE VALUE CHANGE RATE
SHALL BE WITHIN ±(5%R+0.1 Ω).
RESISTANCE TEMPERATURE
COEFFICIENT
TEST METHOD MIL-STD-202 ITEM 304
THE RESISTANCE VALUE CHANGE RATE
SHALL BE AS TABLE – 3.
LOAD LIFE IN HUMIDITY TEST METHOD MIL-STD-202 ITEM 103 THE RESISTANCE VALUE CHANGE RATE
SHALL BE WITHIN ±(5%R+0.1 Ω).
NOTE :