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FM50M Datasheet(PDF) 1 Page - RFE international

Part # FM50M
Description  FUSIBLE RESISTORS FM, FKN, & FSQ Series: Fusible
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Manufacturer  RFE [RFE international]
Direct Link  http://www.rfeinc.com
Logo RFE - RFE international

FM50M Datasheet(HTML) 1 Page - RFE international

  FM50M Datasheet HTML 1Page - RFE international  
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DERATING CURVE
INTRODUCTION
SPECIFICATIONS
ELECTRICAL PERFORMANCE
PART NUMBER EXAMPLE
FUSING CHARACTERISTICS
FEATURES
•High stability, accuracy, and reliability
•Non combustible coating
•Uniform fusing time
FUSIBLE RESISTORS
FM, FKN, & FSQ Series: Fusible
The fusible resistor contains two functions in one
package. It's a resistor under normal conditions and a
fuse when subjected to higher than normal current.
100
80
60
40
20
0
0
50
100
150
200
250
300
350
400
Ambient Temperature (°C)
FM
FKN & FSQ
70°C
275°C
235°C
•Fusing times not listed, may be available.
Contact RFE International, Inc. for details.
Power
Fusing Time
Minimum Nominal Maximum
16 X Wattage
3 Sec.
30 Sec.
1 Min.
20
2 Sec.
15 Sec.
30 Sec.
24
1 Sec.
5 Sec.
10 Sec.
28
0.8 Sec.
3 Sec.
7 Sec.
32
0.8 Sec.
2 Sec.
4 Sec.
FM 50 R - 10R - J
FKN & FM
FSQ
C2DB01
REV 2002.02.07
RFE International • Tel:(949) 833-1988 • Fax:(949) 833-1788 • E-Mail Sales@rfeinc.com
Wattage
Type
Dimension(mm)
Resistance
Max.
Dielectric
Std
Range
Working
Withstanding
Tolerance
L±1.0
D±0.5
H±3
W±0.5
C±3
d±0.05
( )
Voltage
Voltage
±%
1/2W
FM50M
6.8
2.6
30
0.6
0.22 - 100K
250
300
1/2W
FM50
9
3.5
30
0.65
0.22 - 100K
250
300
1W
FM100
9
4
30
0.65
0.22 - 100K
300
500
2W
FM200
11
4.5
30
0.8
0.3 - 100K
350
500
3W
FM300
15
5.5
30
0.8
0.3 - 100K
500
500
1W
FKN1W
9
4.5
0.65
0.1 - 22
500
500
2, 5, 10
5, 10
5, 10
5, 10
5, 10
5, 10
2W
FKN2W
11
5
30
0.8
0.1 - 80
500
500
2, 5, 10
3W
FKN3W
13
5.5
30
0.8
0.1 - 100
500
500
2, 5, 10
4W
FKN4W
17
6.5
38
0.8
0.2 - 200
500
500
2, 5, 10
5W
FKN5W
19
6.5
38
0.8
0.3 - 250
500
500
2, 5, 10
2W
FSQ2W
18
7
7
36
0.65
0.1 - 22
1000
1000
2, 5, 10
3W
FSQ3W
22
8
8
36
0.8
0.1 - 120
1000
1000
2, 5, 10
5W
FSQ5W
22
9
10
36
0.8
0.2 - 120
1000
1000
2, 5, 10
7W
FSQ7W
35
9
10
36
0.8
0.3 - 250
1000
1000
2, 5, 10
10W
FSQ10W
48
9
10
36
0.8
0.3 - 500
1000
1000
2, 5, 10
•Standard tolerance is ±5% and ±10% for values below 0.5
30
FM is fusible metal film
FKN & FSQ is fusible wirewound
Test Items
Condition
Spec.
Operating Temperature
FM
FKN & FSQ
Resistance Temp. Coeff.
+30°C ~ +150°C
±200 ppm/°C(R<1 ohm±440 ppm)
Short Time Overload
FM: 4X rated wattage for 5 sec.
±2%
FKN & FSQ: 2.5X rated wattage for 5 sec.
±2%
Insulation Resistance
500V megger
1000M ohm
Temperature Cycle
-30°C 85°C for 5 cycles
±1%
Load Life
70°C on-off cycle 1000 hrs
±5%
Moisture-Proof Load Life
40°C 95@ RH on-off cycle for 1000 hrs
±5%
-40°C ~ +235°C
-55°C ~ +275°C
RoHS
ü


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