MFR-12 Datasheet, PDF (1/2 Pages) YAGEO Corporation – General Type Normal Miniatyre Style MFR Series

Through-hole resistors
Metal Film Resistors
General Type
Normal & Miniature Style [ MFR Series ]
FEATURES
Power Rating
Resistance Tolerance
T.C.R.
1/6W, 1/4W, 1/2W, 1W, 2W, 3W
±0.5%, ±1%, ±5%
±15ppm/°C, ±25ppm/°C, ±50ppm/°C, ±100ppm/°C
INTRODUCTION
The MFR Series Metal Film Resistors are
manufactured using a vacuum 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 in the resistive layer,
tinned connecting leads of electrolytic copper
are welded to the end-caps. The resistors are
coated with layers of blue color lacquer.
DERATING CURVE
For resistors operated in ambient temperatures above 70°C, power rating must be derated
in accordance with the curve below.
Rated Load (%)
70
155 °C
100
80
60
40
20
20 40 60 80 100 120 140 160
Ambient Temperature (°C)
DIMENSIONS
H
L
ød
øD
STYLE
Normal
MFR-12
MFR-25
MFR-50
MFR100
MFR200
Miniature
MFR25S
MFR50S
MFR1WS
MFR2WS
MFR3WS
DIMENSION
L
øD
3.4±0.3
1.9±0.2
6.3±0.5
2.4±0.2
9.0±0.5
3.3±0.3
11.5±1.0
4.5±0.5
15.5±1.0
5.0±0.5
H
28±2.0
28±2.0
26±2.0
35±2.0
33±2.0
Unit: mm
ød
0.45±0.05
0.55±0.05
0.55±0.05
0.8±0.05
0.8±0.05