Approval Sheet
for
Moulded Wirewound Resistors
Flame-Proof & Failsafe Type
FKM series
±5%
&
±10%
YAGEO CORPORATION
Headquarters:
3F, No.233-1, Pao Chiao Rd., Xindian, Taipei, Taiwan, R.O.C.
Tel:
886-2-6629-9999
Fax:
886-2-6628-8885
URL: www.yageo.com
Page-1
Rev.
00
Description
issue new spec.
Issue Date
May 30, 2012
Drawn
Feng Ye
Approved
Ken Hsu
Description
Series
Moulded Wirewound Resistors, Flame-Proof & Failsafe Type
FKM
Rev.
00
Page-2
1.
PRODUCT:
MOULDED WIREWOUND RESISTORS - Flame Proof & Failsafe Type
Wound on fibre glass core and capped in an special process, suit all requirements for automatic insertion
due to moulded case.
The accurate fusing characteristic of series FKM reliably protects circuits from overload.
The 5
th
colour band is blue to represent failsafe version.
2.
PART NUMBER:
Part number of the moulded wirewound resistor is identified by the name, power, tolerance, packing,
temperature coefficient, special type and resistance value.
Example：
FKM
-75
J
T
-
73-
100R
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Series Power Resistance Packing Temperature Special Resistance
Coefficient
Type
Value
Name Rating Tolerance Style
of Resistance
(1) Style: FKM SERIES
(2) Power Rating : -75=0.75W、150=1.5W
(3) Tolerance:
J=±5%
K=±10%
T＝Tape on Box Packing
(4) Packaging Type:
(5) Temperature Coefficient
：”-“=Base
on spec.
(6) Special Type：
52-=52.4mm
73-=73mm
(7) Resistance Value：E12 & E24 Series
Example：1R、10R、100R、1K……
Page-3
3.
MARKING:
COLOR
BLACK
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GREY
WHITE
GOLD
SILVER
1ST BAND
0
1
2
3
4
5
6
7
8
9
2ND BAND
0
1
2
3
4
5
6
7
8
9
MULTIPLIER
1Ω
10Ω
100Ω
1KΩ
TOLERANCE
FKM Series
0.1Ω
0.01Ω
± 5
％
(J )
± 10
％
(K )
4.
ELECTRICAL CHARACTERISTICS
TABLE I
Ultra Miniature Style
STYLE
Power Rating at 70
℃
Power Rating at 50
℃
Power Rating at 25
℃
Max. Cont. Work. Voltage
Voltage Proof on Insulation
(1min.)
FKM-75
0.75W
FKM150
1.5W
2W
1W
P70
×
R
700Vrms
<140
0.1~1KΩ
- 55
℃
to + 175
℃
-400~+1000 ppm /℃, see next table
1000Vrms
<80
Thermal resistancev (℃/W)
Resistance Range
Operating Temp. Range
Temperature Coefficient
＊
Below or over this resistance on request.
TABLE II Temperature Coefficient
Type
Resistance Value
0R1
0R11~0R18
0R2~0R68
0R75~1K
0R1
0R11~0R16
0R18~0R68
0R75~1K
Temperature Coefficient
ppm /℃
FKM -75
FKM150
±1000
±600
±300
±150
±1800
±1000
±800
±400
Page-4
5.
DERATING CURVE
6.
DIMENSIONS
* 3mm, reduced solderability in this area.
DIMENSIONS (mm)
L
±
0.2
9.9
ψD ±
0.2
3.6
ψd ±
0.2
0.8
1.0*
Tape Step
5
10
STYLE
FKM-75
FKM150
5.7
14.3
*Special lead diameter 0.8mm available.
7.
Fusing Time
FKM-75 Series
Page-5
