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DATA SHEET
METAL OXIDE FILM RESISTORS
General Purpose, Flameproof
RSF Series
±2%, ±5%
1/4W to 5W
RoHS compliant & Halogen Free
Product specification – August 16, 2021 V.0
Through Hole Resistors
Metal Oxide Film Resistors
RSF
Product Specification
2
19
ORDERING INFORMATION
Part number of the metal oxide film resistor is identified by the series,
power rating, tolerance, packing, temperature coefficient, forming and
resistance value.
PART NUMBER
RSF
(1)
100
(2)
J
(3)
T
(4)
-
(5)
73-
(6)
100R
(7)
APPLICATIONS
All general purpose
applications
Power applications
(1) SERIES
RSF Series
(2) POWER RATING
-50 = 1/2W
1WS = 1W
3WS = 3W
300 = 3W
5WS = 5W
5SS = 5W
500 = 5W
FEATURES
Wide resistance range
High stability
Flameproof coating equivalent
to UL-94V-0
RoHS compliant and halogen
free
100 = 1W
2WS = 2W
200 = 2W
3WM = 3W
(3) TOLERANCE
G = ±2%
(4) PACKAGING
R = Reel Pack
T = Box Pack
J = ±5%
B = Bulk
(5) TEMPERATURE COEFFICIENT OF RESISTANCE
- = Based on spec.
(6) FORMING
26- = 26mm
52- = 52.4mm
73- = 73mm
91- = 91mm
M = M-Type Forming
MB = M-form W/flat
F = F Type
(7) RESISTANCE VALUE
E24 Series
Example:
1R=1Ω, 100R= 100Ω, 1K = 1,000Ω
FFK = F-form Kink
FKK = FKK Type
FT = FT Type Forming
MT = MT Type Forming
PN = PANAsert
AV = AVIsert
FK = FK Type
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Aug. 16, 2021
V.0
Through Hole Resistors
Metal Oxide Film Resistors
RSF
Product Specification
3
19
DIMENSIONS
Unit: mm
Normal
RSF-50
RSF100
RSF200
RSF3WM
RSF300
RSF500
Miniature
RSF1WS
RSF2WS
RSF3WS
RSF5SS
RSF5WS
-
L
9.0 ± 0.5
ψD
3.3 ± 0.3
H
26 ± 2.0
35 ± 2.0
33 ± 2.0
32 ± 2.0
38 ± 2.0
38 ± 2.0
ψd
0.55 ± 0.05
0.8 ± 0.05
0.8 ± 0.05
0.8 ± 0.05
0.8 ± 0.05
0.8 ± 0.05
11.5 ± 1.0 4.5 ± 0.5
15.5 ± 1.0 5.0 ± 0.5
17.5 ± 1.0 6.5±1.0
24.5 ± 1.0 8.5 ± 1.0
24.5 ± 1.0 8.5 ± 1.0
DERATING CURVE
Rated Power (%)
100
80
60
48
40
20
70
155
235
Ambient Temperature (°C)
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Aug. 16, 2021
V.0
Through Hole Resistors
Metal Oxide Film Resistors
RSF
Product Specification
4
19
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS
Power Rating at 70 °C
Maximum working voltage
Maximum overload voltage
Voltage Proof on Insulation
Resistance Range
Operating Temp. Range
Temperature Coefficient
RSF-50
1/2W
250V
400V
350V
RSF100
1W
350V
600V
500V
RSF200
2W
350V
600V
500V
RSF3WM
3W
450V
700V
500V
RSF300
3W
500V
800V
500V
RSF500
5W
750V
1000V
500V
1Ω – 1MΩ for E24 series value
- 55°C to +155°C
±300ppm/°C
Note: For resistance value out of above range is by request. Below 10Ω and over 100K(excluded) are using alloy film.
CHARACTERISTICS
Power Rating at 70 °C
Maximum working voltage
Maximum overload voltage
Voltage Proof on Insulation
Resistance Range
Operating Temp. Range
Temperature Coefficient
RSF1WS
1W
300V
500V
400V
RSF2WS
2W
350V
600V
500V
RSF3WS
3W
350V
600V
500V
RSF5SS
5W
500V
800V
500V
RSF5WS
5W
700V
900V
500V
1Ω – 1MΩ for E24 series value
- 55°C to +155°C
±300ppm/°C
Note: For resistance value out of above range is by request. Below 10Ω and over 100K(excluded) are using alloy film.
www.yageo.com
Aug. 16, 2021
V.0
Through Hole Resistors
Metal Oxide Film Resistors
RSF
Product Specification
5
19
TEST AND REQUIRMENTS
TEST
Short Time Overload
TEST METHOD
IEC 60115-1 4.13
PROCEDURE
2.5 times RCWV for 5 sec.
(Not more than maximum overload
voltage)
Voltage Proof on
Insulation
Temperature Coefficient
Insulation Resistance
Solderability
Solvent Resistance of
Marking
Robustness of
Terminations
Periodic-pulse Overload
IEC 60115-1 4.39
IEC 60115-1 4.16
Direct load for 10 Sec. in the direction
of the terminal leads
4 times RCWV 10,000 cycles (1 Sec.
on,25 Sec. off)
Damp Heat Steady State IEC 60115-1 4.24
40±2°C,90-95% RH for 56 days,
loaded with 0.1 times RCWV
Endurance at 70°C
IEC 60115-1 4.25
70±2°C at RCWV(or Umax.,
whichever less) for 1,000 Hr.(1.5
Hr.on,0.5 Hr. off)
Temperature Cycling
IEC 60115-1 4.19
-55°C
Room Temp.
±1.0%+0.05Ω
±5.0%+0.05Ω
±5.0%+0.05Ω
±2.0%+0.05Ω
IEC 60115-1 4.8
IEC 60115-1 4.6
IEC 60115-1 4.17
IEC 60115-1 4.30
IEC 60115-1 4.7
In V-Block for 60 sec. test voltage as
above table
Between -55°C to +155°C
In V-Block for 60 sec.
245±5°C for 3±0.5 Sec.
IPA for 5±0.5 Min. with ultrasonic
By Type
>1,000MΩ
95% Min. coverage
No deterioration of coatings
and markings
≥2.5Kg(24.5N)
No Breakdown
APPRAISE
±1%+0.05Ω for normal style
±2%+0.05Ω for miniature style
+155°C Room Temp.(5 cycles)
Resistance to Soldering
Heat
Accidental Overload
Test
IEC 60115-1 4.26
IEC 60115-1 4.18
260±3°C for 10±1 Sec., immersed to
a point 3±0.5mm from the body
4 times RCWV for 1 Min.
No evidence of flaming
or arcing
±1.0 %+0.05Ω
Note:
RCWV (Rated Continuous Working Voltage ):
The DC or AC (rms) continuous working voltage corresponding to the rated power is determined by the following
formula:
V=√(P X R)
or max. working voltage whichever is less
Where
V=Continuous rated DC or
AC (rms) working voltage (V)
P=Rated power (W)
R=Resistance value (Ω)
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Aug. 16, 2021
V.0
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