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DATA SHEET
METAL FILM RESISTORS
General Purpose
MFR Series
±0.5%, ±1%, ±2%, ±5%
1/6W to 3W
RoHS compliant & Halogen Free
Product specification – August 17, 2021 V.0
Through Hole Resistors
Product Specification
2
16
Metal Film Resistors
MFR
ORDERING INFORMATION
Part number of the general purpose metal film resistor are identified by
the series, power rating, tolerance, packing, temperature coefficient,
forming and resistance value.
PART NUMBER
APPLICATIONS
All general purpose
applications
Power applications
MFR
(1)
200
(2)
F
(3)
T
(4)
F
(5)
73-
(6)
100R
(7)
(1) SERIES
MFR Series
(2) POWER RATING
EATURES
AEC-Q200 qualified
Wide resistance range
PPAP ready
(MFR-25/MFR50S/MFR-50)
High stability
RoHS compliant &
halogen-free
-12 = 1/6W
25S = 1/4W
-25 = 1/4W
50S = 1/2W
(3) TOLERANCE
D = ±0.5%
J = ±5%
(4) PACKAGING
R = Reel Pack
-50 = 1/2W
100 = 1W
2WS = 2W
200 = 2W
3WS = 3W
1WS = 1W
F = ±1%
G = ±2%
T = Box Pack
B = Bulk
(5) TEMPERATURE COEFFICIENT OF RESISTANCE
E=±50ppm/°C
(6) FORMING
26- = 26mm
52- = 52.4mm
73- = 73mm
M = M-Type Forming
MB = M-form W/fla
F = F Type
FK = FK Type
52A=52.4mm, ψd 0.4±0.02mm
52B=52.4mm, ψd 0.45±0.02mm
52C=52.4mm, ψd 0.5±0.02mm
52G=52.4mm, ψd ≥ 0.6mm
52H=52.4mm , non-painting on soldering spots
FFK = F-form Kink
FKK = FKK Type
MT = MT Type Forming
FT = FT Type Forming
PN = PANAsert
AV = AVIsert
F=±100ppm/°C
- = Based on spec
(7) RESISTANCE VALUE
E24 & E96 & E192 Series
Example:
100R = 100Ω, 10K = 10,000Ω, 1M = 1,000,000Ω
www.yageo.com
Aug. 17, 2021
V.0
Through Hole Resistors
Product Specification
3
16
Metal Film Resistors
MFR
DIMENSIONS
Unit: mm
Normal
MFR-12
MFR-25
MFR-50
MFR100
MFR200
Miniature
MFR25S
MFR50S
MFR1WS
MFR2WS
MFR3WS
L
3.4 ± 0.3
6.3 ± 0.5
9.0 ± 0.5
ψD
1.9 ± 0.2
2.4 ± 0.2
3.3 ± 0.3
H
28 ± 2.0
28 ± 2.0
26 ± 2.0
35 ± 2.0
33 ± 2.0
ψd
0.45 ± 0.05
0.55 ± 0.05
0.55 ± 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
DERATING CURVE
Rated Power (%)
100
80
60
40
20
20
40
70
100
155
Ambient Temperature (
°
C)
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS MFR-12
Power Rating
at 70 °C
Maximum Working
Voltage
Maximum Overload
Voltage
Voltage Proof on
Insulation
Resistance Range
Operating Temp.
Range
Temperature
Coefficient
1/6W
200V
400V
300V
MFR25S MFR-25
1/4W
200V
400V
400V
1/4W
250V
500V
500V
MFR50S MFR-50
1/2W
300V
600V
500V
1/2W
350V
700V
500V
MFR1WS
1W
400V
800V
700V
MFR100 MFR2WS
1W
500V
1000V
1000V
2W
500V
1000V
1000V
MFR3WS
3W
500V
1000V
1000V
1Ω ~ 4M7Ω for E24 & E96 series value
- 55°C to +155°C
±50ppm/°C , ±100ppm/°C
Note: For resistance value out of above range is by request.
www.yageo.com
Aug. 17, 2021
V.0
Through Hole Resistors
Product Specification
4
16
Metal Film Resistors
MFR
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.
±0.75%+0.05Ω
±1.5%+0.05Ω
±1.5%+0.05Ω
±1.0%+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
>10,000MΩ
95% Min. coverage
No deterioration of
coatings and markings
≥2.5Kg(24.5N)
No Breakdown
APPRAISE
±0.25%+0.05Ω
+155°C Room Temp.(5 cycles)
Resistance to Soldering
Heat
IEC 60115-1 4.18
260±3°C for 10±1 Sec., immersed to a
point 3±0.5mm from the body
±0.25%+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)
www.yageo.com
Aug. 17, 2021
V.0
Through Hole Resistors
Product Specification
5
16
Metal Film Resistors
MFR
PULSE DIAGRAMS
MFR25S Series: Pmax.: Maximum permissible peak pulse power
ti: Pulse duration
tp: Pulse repetition time
MFR50S Series: Pmax.: Maximum permissible peak pulse power
ti: Pulse duration
tp: Pulse repetition time
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Aug. 17, 2021
V.0
