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LEADED RESISTORS
Metal Film Resistors
Biased Humidity Type
Normal & Miniature Style [ MFN Series ]
FEATURES
Power Rating
Resistance Tolerance
T.C.R.
DERATING CURVE
1/6W, 1/4W, 1/2W, 1W, 2W, 3W
±0.5%, ±1%
±15ppm/°C, ±25ppm/°C, ±50ppm/°C, ±100ppm/°C
INTRODUCTION
For resistors operated in ambient temperatures above 70°C, power rating must be derated
in accordance with the curve below.
The MFN Series Metal Film Biased Humidity
Resistors are manufactured using a vacuum
Rated Load (%)
100
70
155 °C
sputtering system to deposit multiple layers of
mixed metal alloys and passivative materials
onto a carefully treated high grade ceramic
substrate. After a helical groove has been cut
80
60
40
20
in the resistive layer, tinned connecting leads of
electrolytic copper are welded to the end-caps.
20
40
60
80
100 120 140 160
Ambient Temperature (°C)
The resistors are coated with a specialized blue
lacquer. Its processes and controls ensure the
product is impervious to moisture.
DIMENSIONS
STYLE
DIMENSION
Unit: mm
Normal
MFN-12
Miniature
MFN25S
L
3.4±0.3
?D
1.9±0.2
H
28±2.0
?d
0.45±0.05
?d
MFN-25
MFN50S
6.3±0.5
2.4±0.2
28±2.0
0.55±0.05
H
L
?D
MFN-50
MFN1WS
9.0±0.5
3.3±0.3
26±2.0
0.55±0.05
MFN100
MFN200
MFN2WS
MFN3WS
11.5±1.0
15.5±1.0
4.5±0.5
5.0±0.5
35±2.0
33±2.0
0.8±0.05
0.8±0.05
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