leaded resIsTOrs
Metal Oxide Film Resistors
Flame-ProofType
Normal & Miniature Style [ RSF Series ]
FeaTUres
Power Rating
1/4W, 1/2W, 1W, 2W, 3W, 5W
2ꢀ, 5ꢀ
ResistanceTolerance
T.C.R.
300ppm/ºC
Flameproof Multi-layer Coating Meets
Flameproof Feature Meets OverloadTest
UL-94V-0
UL-1412
deraTING CUrVe
INTrOdUCTION
For resistors operated in ambient temperatures above 70ºC, power rating must be derated in
accordance with the curve below.
The RSF Series Metal Oxide Film Flame Proof
Resistors offer excellent performance in applica-
tions where stability and uniformity of characteristics
are desired. They provide lower cost alternatives
to Carbon Composition Resistors and General
Purpose Metal Films. Metal Oxides also can replace
many low power General Purpose wirewound ap-
plications, saving both money and time, with shorter
delivery cycles. The normal style & the miniature
style of RSF series are coated with layers of gray and
pink colors flame proof lacquer respectively.
70ºC
100
Rated Load (%)
80
60
40
20
ꢀ0
100
1ꢀ0
200
2ꢀ0
AmbientTemperature (°C)
Unit : mm
dIMeNsIONs
sTYle
dIMeNsION
l
Noꢀmꢁꢂ
Miniꢁtuꢀꢃ
ød
H
øꢄ
RSF-25
RSF-50
RSF100
RSF50S
6.3 0.5
9.0 0.5
11.5 1.0
2.4 0.2
3.3 0.3
4.5 0.5
28 2.0
26 2.0
35 2.0
0.55 0.05
0.55 0.05
0.8 0.05
RSF1WS
RSF2WS
ød
RSF200
RSF3WM
RSF300
RSF500
RSF3WS
RSF5SS
RSF5WS
-
15.5 1.0
17.5 1.0
24.5 1.0
24.5 1.0
5.0 0.5
6.5 1.0
8.5 1.0
8.5 1.0
33 2.0
32 2.0
38 2.0
38 2.0
0.8 0.05
0.8 0.05
0.8 0.05
0.8 0.05
H
L
øD
* RSFIWS (for MBType) ød=0.8 0.05mm