Resistors
Operating temperature
-55°C to +155°C
0.5W to 4W
Flame Proof
Power Flame Proof Resistors
The DFR series is available in power ratings from 0.5W to 4W
With tolerances of 5% (E24) and 1% (E24 & E96)
OUTLINE DRAWING
Dimension
L
ØD
H
DFR050 3.4±0.3 1.9±0.2 28±2.0
DFR100 6.3±0.5 2.4±0.2 28±2.1
DFR200 9.0±0.5 3.9±03
26±2.0
DFR300SS 11.5±1.0 4.5±0.5 33±2.0
DFR300 15.5±1.0 5.0±0.5 33±2.1
DFR400 17.0±1.0 7.5±0.5 32±2.0
STYLE
Ød
0.45±0.05
0.55±0.05
0.55±0.06
0.8±0.05
0.8±0.05
0.8±0.05
D
d
H
SECTION 4
L
H
RANGE
Style
Power Rating at 70°C
DFR050
0.5W
200V
400V
300V
DFR100
1W
350V
600V
DFR200
2W
500V
700V
DFR300SS
3W
500V
700V
DFR300
3W
750V
1000V
DFR400
4W
750V
1000V
750V
Maximum Working Voltage
Maximum Overload Voltage
Dielectric Withstand Voltage
Resistance Range
Operating Temperature Range
Temperature Coefficient
500V
500V
500V
750V
1R ~ 10M & 0R for E24 and E96 ranges
-55°C to +155°C
±100 ppm/°C
ORDERING INFORMATION
DFR
Power Rating
050 = 1/2W
100 = 1W
200 = 2W
300SS = 3W
300 = 3W
400 = 4W
050
J
Tolerance
J = 5%
F = 1%
75R
Value
in ohms
T
Packaging
R= Paper
Taping Reel
T=Tape in
Box
B=Bulk
--
Packaging Option
52- = 52.4mm
52I = 52.4mm (I represents 0.78±0.05mm diameter)
73- = 73mm
M = M Type Forming for Bulk
F = F Type Forming for Bulk
FK = FK Type Forming
FFK = FFK Type Forming
FKK = FKK Type Forming
FT = FT Type Forming
MT = MTsert
PN = PANAsert
AV = AVIsert
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Resistors
Power Flame Proof Resistors
Derating Curve
Rated Load (%)
100
80
60
40
20
20
40
60
80
100
120
140
155
180
70?
Ambient Temperature (? )
Pulse Loading Capabilities
10
4
Pmax
(W)
10
3
tp/ti=1000
tp/ti=200
tp/ti=50
tp/ti=10
10
tp/ti=2
4R7
100R
1
220R
4K7
10
-1
10
-5
10
-4
10
-3
10
-2
10
-1
ti (S)
1
DFR400 Series:
Pulse on a regular basis;maximum permissible peak pulse power (P-max) as a
function of pulse duration (t
i
).
Packing Methods
STYLE
Normal
a
DIMENSIONS
A
B1-B2
S
(spacing)
Unit: mm
T (max. deviationof
spacing)
DFR050
DFR100
DFR200
DFR300
DFR400
6 ±0.5
6 ±0.5
6 ±0.5
6 ±0.5
6 ±0.5
52.4 ± 1.0
52.4 ± 1.0
52.4 ± 1.0
73 ± 1.5
73 ± 1.5
1.2
1.2
1.2
1.5
1.5
10
10
1mm per 10 spacing
10
0.5mm per 5 spacing
10
10
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SECTION 4
10
2
Resistors
Power Flame Proof Resistors
Tape on Reel Packing
STYLE ACROSS FLANGE A QTY Per Reel
DFR050
72
5000
DFR100
72
5000
DFR200
72
2500
DFR300
95
2000
Packing Methods
STYLE
Normal
DFR050
DFR100
DFR200
DFR300
DFR400
Standard Lead Length
W( A )
H( B)
L ( C)
81
70
260
81
104
260
73
45
258
103
78
260
103
78
260
Qty Per Box
5000
1000
1000
1000
1000
SECTION 4
Special Type
M TYPE
STYLE
Normal
DFR050
DFR100
DFR300
L
3.4 ± 0.3
6.3 ± 0.5
15.5 ± 1.0
DIMENSIONS
øD
1.9 ± 0.2
2.4 ± 0.2
5.0 ± 0.5
ød
0.45 ± 0.05
0.55 ± 0.05
0.8 ± 0.05
P
6.0 ± 1.0
10.0 ± 1.0
20.0 ± 1.0
UNIT：
mm
H
10.0 ± 1
10.0 ± 1
15.0 ± 1
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Resistors
Power Flame Proof Resistors
F TYPE
STYLE
Normal
DFR300
* FMP100 is available
FK TYPE
FFK TYPE
L
øD
15.5 ± 1.0 5.0 ± 0.5
DIMENSIONS
ød
0.8 ± 0.05
P
6.0 ± 1
h1
5.0 ± 1
H1 max
25
UNIT：
mm
E max
3.5
FKK TYPE
STYLE
Normal
DFR300
* DFR300 is available
FT Type Forming for Taping (Rated Watt 100 size only)
L
øD
15.5 ± 1.0 5.0 ± 0.5
DIMENSIONS
ød
0.8 ± 0.05
P
6.0 ± 1
h
10.0 ± 1
H max
30
UNIT：
mm
E max
3.5
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SECTION 4
Resistors
Power Flame Proof Resistors
MT Type Forming for Taping (Rated Watt -50 size only)
PN Type Forming for Taping (Rated Watt 100 size only)
AV Type Forming for Taping (Rated Watt 100 size only)
Tel: +44 (0) 1724 408710
Tel: +44 (0) 1724 408710
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SECTION 4
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