Through-hole resisTors
Flame-Proof Type
Carbon Film Resistors
Normal & Miniature Style [ FCR Series ]
FeATures
Power Rating
1/4W, 1/2W, 1W, 2W, 3W
±2%, ±5%
ResistanceTolerance
T.C.R.
seeTable 1
Flameproof Multi-layer Coating Meets
Flameproof Feature Meets OverloadTest
UL-94V-0
UL-1412
DerATiNg CurVe
iNTroDuCTioN
For resistors operated in ambient temperatures above 70°C, power rating must be derated
in accordance with the curve below.
The FCR Series Carbon Film Flame-Proof
Resistors are manufactured by coating a
homogeneous film of pure carbon on high
grade ceramic rods. After a helical groove has
been cut in the resistive layer, tinned connecting
leads of electrolytic copper are welded to the
end-caps. The resistors are coated with layers
of gray color lacquer.
70
155 °C
Rated Load (%)
100
80
60
40
20
Ambient Temperature (°C)
20 40 60 80 100 120 140 160
TABle 1 TeMPerATure CoeFFiCieNT
sTYle
TeMP. CoeFFiCieNT (ppm/°C)
ꢀndꢁꢂ 100KΩ 100KΩ - 1MΩ
FCR100, FCR200, FCR2WS, FCR3WS -350~350
1MΩ - 10MΩ
-1,500~0
-500~0
-700~0
FCR-25, FCR-50, FCR50S, FCR1WS
-500~350
-1,500~0
DiMeNsioNs
Unit: mm
sTYle
DiMeNsioN
l
Nꢃꢂmaꢄ
FCR-25
FCR-50
FCR100
FCR200
Mꢅnꢅatꢀꢂꢁ
FCR50S
øD
h
ød
ød
6.3±0.5
9.0±0.5
11.5±1.0
15.5±1.0
2.4±0.2
3.3±0.3
4.5±0.5
5.0±0.5
28±2.0
26±2.0
35±2.0
33±2.0
0.55±0.05
0.55±0.05
0.8±0.05
0.8±0.05
H
L
øD
FCR1WS
FCR2WS
FCR3WS
5th color code: black