Packing Qty:
0 = for Bulk / Box
packing
2006 - 2007
P F 5 2 8 W 1 5 J
CEMENT THERMAL FUSIBLE RESISTORS
• Self extinguishing
• Excellent flame and moisture resistance
• Extremely small and mechanically safe
• Provides outstanding feature against surges
• Too low or too high ohmic values on Wire-wound & Power Film type can be supplied on a case to
case basis
J B 2
Ordering Procedure: (Ex.: FTR-5G 2.8W, +/-5%, 1.5Ω, 2A, B/B)
G
Resistor Type:
PF2 = FTR2; PF3 = FTR3;
PF5 = FTR5; PF7 = FTR7;
PFA = FTR10
Fusing Temperature:
A = 98°C
B = 104°C
C = 117°C
D = 125°C
E = 128°C(10A) / 130°C(2A)
F = 144°C
G = 150°C
H = 152°C
I = 167°C
J = 184°C
K = 227°C
L = 229°C
Wattage:
14=1.4W; 15=1.5W;
16=1.6W; 17=1.7W;
18=1.8W; 19=1.9W;
20=2.0W; 21=2.1W;
22=2.2W; 23=2.3W;
24=2.4W; 25=2.5W;
26=2.6W; 27=2.7W;
28=2.8W; 30=3.0W;
31=3.1W; 32=3.2W;
33=3.3W; 34=3.4W;
36=3.6W; 38=3.8W;
40=4.0W; 44=4.4W;
46=4.6W; 52=5.2W;
Tolerance:
J = ±5%
K = ±10%
Resistance Value:
E-24 series:
1st digit denotes the type of the product :
W=Wire wound type
2nd & 3rd digits are the
significant figures of the resistance
4th digit denotes number of zeros:
“J” - 0.1, “K” - 0.01, “L”- 0.001
Ex. 4Ω7 ~ W47J
Packing Type:
B = Bulk / Box
Current Rating:
2 = 2A
5 = 5A
A = 10A
Temperature coefficient
<20
Ω
: ±400PPM/°C;
≥
20
Ω
: ±350PPM/°C
Short-time overload
∆
R/R
≤
±(5.0% + 0.05
Ω
),
with no
evidence of mechanical damage.
Dielectric withstanding
voltage
No evidence of flashover, mechanical damage, arcing or insulation breakdown.
Terminal strength
No evidence of mechanical damage.
Solderability
Min. 95% coverage
Temperature cycling
∆
R/R
≤
±(2.0% + 0.05
Ω
),
with no
evidence of mechanical damage.
Humidity (Steady State)
∆
R/R
≤
±(5.0% + 0.05
Ω
),
with no
evidence of mechanical damage.
Load life in humidity
For Wire-wound
range, the
∆
R/R is ±5%
For Power film range, <100K
Ω
, the
∆
R/R is ±5%
For Power film range,
≥
100K
Ω
, the
∆
R/R is ±10%
Load life
For Wire-wound
range, the
∆
R/R is ±5%
For Power film range, <100K
Ω
, the
∆
R/R is ±5%
For Power film range,
≥
100K
Ω
, the
∆
R/R is ±10%
Resistance
to soldering heat
∆
R/R ±(1.0% + 0.05
Ω
),
with no evidence of mechanical damage.
* More details, please see pa
g
es 7
8
-7
9
.
* More explanation on part no, please see details on pages 80-81.
0
Page 43
2007 - 2008
CEMENT THERMAL FUSIBLE RESISTORS
Dimension (mm) Rated functioning Temp.
C D E G
Type
W ± 1 D ± 1 L ± 1 P ± 1 d1 d2
± 0.05
Current
Rating
Voltage
Rating
117°C 125°C 130°C 150°C
Resistance
Range
(E-24 series)
±5%, ±10%
FTR2 12 7 21 5 0.6 0.75 1.6W 1.9W 2.0W 2.0W 0.22Ω~270Ω
FTR3 12 8 26 5 0.6 0.75 1.7W 2.0W 2.1W 2.3W 0.27Ω~680Ω
FTR5 13 9 26 5 0.6 0.75 1.9W 2.3W 2.4W 2.8W 0.27Ω~680Ω
FTR7 13 9 38.5 5 0.6 0.75 2.2W 2.7W 2.8W 3.2W 0.68Ω~1.2KΩ
FTR10 16 13 35 7.5 0.6 0.75
2A 250V
2.6W 3.2W 3.3W 3.8W 1Ω~1.8KΩ
Derating curve (Current Rating: 2A)
Dimension (mm)
Type W ±
1 D ± 1 L ± 1 P ± 1 d1
± 0.05
d2
± 0.05
Current
Rating
V
oltage
Rating
FTR2 12 7 21 5 1.0 0.75
FTR3 12 8 26 5 1.0 0.75
FTR5 13 9 26 5 1.0 0.75
FTR7 13 9 38.5 5 1.0 0.75
FTR10 16 13 35 7.5 1.0 0.75
10A 250V
Fusing Temperature Code
A B C E F H I J K L
Type
98°C 104°C 117°C 128°C 144°C 152°C 167°C 184°C 227°C 229°C
Resistance
Range
(E-24 series)
±5%, ±10%
FTR2 1.4W 1.6W 1.8W 2.0W 2.0W 2.0W 2.0W 2.0W 2.0W 2.0W 0.22Ω ~ 270Ω
FTR3 1.5W 1.7W 1.9W 2.1W 2.2W 2.5W 2.8W 3.0W 3.0W 3.0W 0.27Ω ~ 680Ω
FTR5 1.7W 1.9W 2.2W 2.4W 2.6W 3.1W 3.3W 3.8W 3.8W 3.8W 0.27Ω ~ 680Ω
FTR7 2.0W 2.2W 2.5W 2.8W 3.0W 3.4W 3.8W 4.4W 4.4W 4.4W 0.68Ω ~ 1.2KΩ
FTR10 2.4W 2.6W 3.0W 3.3W 3.6W 4.0W 4.6W 5.2W 5.2W 5.2W 1Ω ~ 1.8KΩ
Derating curve
( Current Rating: 10A )
Page 44
2007 - 2008
Power
Rating at
70°C
W ± 1 D ± 1 L ± 1 H ± 5
Resistance
Range
Remark :
T
F
(°C) =
Rated Functioning Temperature
Ir (A) = Rated Current
Ur (V) = Rated Voltage
+0.02
d1 d2 ± 0.05
-0.05
CEMENT THERMAL FUSIBLE RESISTORS
Derating Curve:
Type
FWI 2W 0.5Ω ~ 470Ω 9 10 25 36 0.6 0.75
Temperature coefficient
≥
20
Ω
±
350PPM/°C; <20
Ω
± 400PPM/°C Max.
Short-time overload
∆
R/R
≤
±(5.0% + 0.05
Ω
) Max.,
with no evidence of
mechanical damage.
Terminal strength
No evidence of mechanical damage.
Resistance
to soldering heat
∆
R/R
≤
±(1.0% + 0.05
Ω
) Max.,
with no evidence of
mechanical damage.
Solderability
Min. 95% coverage
Load life in humidity
∆
R/R
≤
±(5.0% + 0.05
Ω
) Max.,
with no evidence of
mechanical damage.
Load life
∆
R/R
≤
±(5.0% + 0.05
Ω
) Max.,
with no evidence of
mechanical damage.
THERMAL FUSING POWER FILM FIXED RESISTORS
Dimension (mm):
Type L
(Max.)
W
(Min.)
W1
(Min.)
H
(Min.)
Ød1
± 0.02
Ød2
± 0.02
TFRC 17 17 5 7.5 0.7 1.0
Type
Power
Rating
at 70°C
Resistance
Range
T.C.R.
(PPM/°C)
TF
(°C)
Ir
(A)
Ur
(V)
TFRC 2W 360Ω+360Ω ± 350 91 10 250
Derating curve
*** other value can be supplied on a case to case basis.
* More details, please see pa
g
es 7
8
-7
9
.
Page 45
2007 - 2008
