CFM Series

 CFM Series
Carbon Film MELF Resistor
MERITEK
DIMENSION
Dimension (mm)
D1
D2 MAX
D3 MAX
1.40±0.1
1.55
0.10
2.20±0.1
2.4
0.15
3.20±0.2
3.4
0.30
Size
L
0204
3.5±0.2
0207
5.9±0.2
0309
8.5±0.2
Coating Color: Beige
Marking Color: Standard Color Band per EN 60062:2005
C MIN
0.5
0.5
0.5
*E-24 Series = 3 bands
SPECIFICATION
Size
0204
0207
0309
Power
Rating
Resistance
Range
Resistance
Tolerance
0.25W
0.25W
0.5W
0.5W
1Ω~10M
1Ω~10M
1Ω~10M
1Ω~10M
G(±2%)
J(±5%)
MAX.
Working
Voltage
200V
MAX.
Overload
Voltage
400V
1~100KΩ
101K~500KΩ
501K~1MΩ
1M~10MΩ
300V
600V
±350
±700
±1000
±1500
350V
700V
T.C.R (ppm)
ENVIRONMENTAL CHARACTERISTICS
No
1
Test Item
T.C.R.
2
Solderability
3
Resistance to solvent
4
Resistance to soldering
heat
Performance Requirements
Within specified T.C.R.
Test Methods (JIS-C-5201-1)
+25Ԩ/-55Ԩ and +25Ԩ/+125Ԩ
More than 95% of the total area of the
electrode part shall be covered with new
solder
Epoxy Insulation coating cannot be peeled
Based on the Iron cap loose standard , the
change of the resistance value shall be within
±(1%+0.05Ω)
There are 3 cycles, each circle takes 1 min.
Temperature of solder: 235±5Ԩ
Dipping time: 3±0.5 sec
Temperature: 260Ԩ±5Ԩ
Dipping time:10±1 sec
5
Short time overload
The change of the resistance value shall be
within ±(0.5%+0.05Ω)
V=√R×P×2.5 , 5 sec.
V= Rated Voltage
R=Resistance Value
P=Power Rating
Size
0204
Power Rating
0.25W
Voltage MAX
400V
6
Humidity resistance
The change of the resistance value shall be
within ±(5%+0.05Ω)
Room temperature + 100Ԩ,90%~95% RH,
Dipping time: 0.5hr
7
Load Life test
The change of the resistance value shall be
within ±(2%+0.05Ω)
Constant temperature chamber of
70Ԩ±2Ԩ,applied continuously for 24hr.
0207
0.5W
500V
0309
0.5W
700V
DERATING CURVE
Rev. 7
CFM Series
Carbon Film MELF Resistor
MERITEK
PART NUMBERING SYSTEM
CFM
0204
V
103
G
T
Meritek Series
Size
Power Rating
CODE
T
U
V
W
VALUE
1W
0.5W
0.25W
0.125W
Resistance
Resistance expressed in ohms (Ω).
First two digits are significant figures.
Third digit denotes number of zeros.
'R' denotes decimal point for values less than 10Ω
Resistance Tolerance
CODE
G
J
VALUE
±2%
±5%
Packaging
CODE
T
B
VALUE
T/R
Bulk
STANDARD PACKING QUANTITY
Size
0204
0207
0309
Tape/Reel Q’ty (pcs)
Reel
Case
Carton
3,000 15,000 180,000
2,000 8,000
96,000
2,500 2,500
15,000
Bulk Q’ty (pcs)
Bag
5,000
5,000
5,000
Weight (g)
Reel/pc Net/Kpcs
390.5
18
383.5
155
2,505
160
EMBOSSED TAPING DIMENSION
Size
0204
0207
0309
W
8±0.1
12±0.1
16±0.1
P
4±0.1
4±0.1
8±0.1
E
1.75±0.1
1.75±0.1
1.75±0.1
F
3.5±0.05
5.5±0.05
7.5±0.10
D
1.5±0.1
1.5±0.1
1.5±0.1
D1
1.0±0.1
1.5±0.1
1.5±0.1
P0
4±0.1
4±0.1
4±0.1
P2
2±0.1
2±0.1
2±0.1
A0
1.6±0.1
2.4±0.1
3.5±0.1
B0
3.70±0.1
6.05±0.1
8.85±0.1
K0
1.65±0.1
2.50±0.1
3.50±0.1
t
0.22±0.05
0.03±0.05
0.35±0.05
TAPE/REEL DIMENSION
Size
0204
0207
0309
ØA
178±1
178±1
330±1
ØB
60.0±0.5
60.0±0.5
100±1.0
ØC
13.0±0.2
13.0±0.2
13.0±0.5
W
9.0±0.5
13.2±0.5
17.0±0.5
T
12.0±0.15
16.0±0.20
21.5±0.20
Rev. 7