LEADED RESISTORS
Fusible &
Metal Film Resistors
Flame-Proof Type
Normal & Miniature Style [ FRM Series ]
FEATURES
Power Rating
Resistance Tolerance
T.C.R.
Flameproof Multi-layer Coating Meets
Flameproof Feature Meets Overload Test
1/4W, 1/2W, 1W, 2W, 3W
±2%, ±5%
±200ppm/°C
UL-94V-0
UL-1412
INTRODUCTION
The FRM Series Metal Film Fusible &
Flame-Proof Resistors are manufactured using
DERATING CURVE
For resistors operated in ambient temperatures above 70°C, power rating must be derated
in accordance with the curve below.
a vacuum sputtering system to deposit multiple
Rated Load (%)
100
70
155 °C
layers of mixed metal alloys and passivative
materials onto a carefully treated high grade
ceramic substrate. After a helical groove has
been cut in the resistive layer, tinned connecting
leads of electrolytic copper are welded to the
80
60
40
20
end-caps. The resistors are coated with layers
20
40
60
80
100 120 140 160
Ambient Temperature (°C)
of gray color lacquer for normal size & pink
color lacquer for miniature size. Overload
protection without risk of fire. Wide range of
overload currents.
FUSING CHARACTERISTICS
R ≤ 2.0 Ω Fusing time within 60 seconds at 36 times of rated power
R ≥ 2.2 Ω Fusing time within 60 seconds at 25 times of rated power
Fusing residual resistive value at least 100 times rated resistance
DIMENSIONS
STYLE
DIMENSION
Unit: mm
Normal
Miniature
L
?D
H
?d
?d
FRM-25
FRM50S
6.3±0.5
2.4±0.2
28±2.0
0.55±0.05
H
L
th color code: white
?D
FRM-50
FRM100
FRM1WS
FRM2WS
9.0±0.5
11.5±1.0
3.3±0.3
4.5±0.5
26±2.0
35±2.0
0.55±0.05
0.8±0.05
FRM200
FRM3WS
15.5±1.0
5.0±0.5
33±2.0
0.8±0.05
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
FRN1.25TB50
TRACER 1 1/4" BLACK W/WHITE 50'
FRN2JT6R80
RES FUSE 6.8 OHM 2W 5% AXIAL
FS-30
CABLE 30MM HIGH FLEX SHIELD 50M
FSN0.75SV
FLEXO SHIELD 3/4" SILVER 328'
FT-1973
FAN TRAY ASSEMBLY W/3 FANS
FT-1976
FAN TRAY ASSEMBLY W/6 FANS
FT-1979
FAN TRAY ASSEMBLY W/9 FANS
FT1U-6AC
FAN TRAY 6 FANS 19X1.71X12.95"
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