leaded resIsTOrs
Metal Film Resistors
Professional Type
Miniature Style [ MF0 Series ]
FeaTUres
Power Rating
Resistance Tolerance
T.C.R.
0.4W, 0.6W
±1%
±50ppm/ºC
deraTING CUrVe
For resistors operated in ambient temperatures above 70ºC, power rating must be derated in
accordance with the curve below.
Rated Load (%)
100
80
60
40
20
20
40
60
80
100
120
140
160
180
70ºC
INTrOdUCTION
The MF0 Series Metal Film Professional Resistors
are manufactured using vacuum sputtering system
to deposit multiple layers of mixed metals alloy 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.
Ambient Temperature (˚C)
dIMeNsIONs
sTYle
ød
H
L
øD
Miniature
MF0204
MF0207
dIMeNsION
l
3.4±0.3
6.3±0.5
ød
1.9±0.2
2.4±0.2
H
28±2.0
28±2.0
ød
0.45±0.05
0.55±0.05
Unit : mm
Note :
eleCTrICal CHaraCTerIsTICs
sTYle
Power Rating at 70 ºC
Maximum Working Voltage
Maximum Overload Voltage
Dielectric Withstanding Voltage
Resistance Range
Operating Temp. Range
Temperature Coefficient
MF0204
0.4W
250V
500V
300V
1Ω ~ 10MΩ & 0Ω for E24 & E96 series value
- 55ºC to + 155ºC
±50ppm/ºC
MF0207
0.6W
350V
700V
500V
* Below or over this resistance range on request.
eNVIrONMeNTal CHaraCTerIsTICs
PerFOrMaNCe TesT
Short Time Overload
Dielectric Withstanding Voltage
Temperature Coefficient
Insulation Resistance
Solderability
Resistance to Solvent
Terminal Strength
Pulse Overload
Load Life in Humidity
Load Life
Temperature Cycling
Resistance to Soldering Heat
TesT MeTHOd
JIS-C-5202 5.5
JIS-C-5202 5.7
JIS-C-5202 5.2
JIS-C-5202 5.6
JIS-C-5202 6.5
JIS-C-5202 6.9
JIS-C-5202 6.1
JIS-C-5202 5.8
JIS-C-5202 7.9
JIS-C-5202 7.10
JIS-C-5202 7.4
JIS-C-5202 6.4
2.5 Times RCWV for 5 Seconds
in V-Block for 60 Seconds
-55ºC to +155ºC
in V-Block
260ºC ±5ºC for 5 ±0.5 Seconds
IPA for 1 Min. with Ultrasonic
Direct load for 10 Sec. In the Direction of the Terminal Leads
4 Times RCWV 10000 Cycles (1 Sec. On, 25 Sec. off)
40±2ºC , 90~95% RH at RCWV for 1,000 Hrs. (1.5 Hrs. on , 0.5 Hrs. off)
70ºC at RCWV for 1,000 Hrs. (1.5 Hrs. on 0.5 Hrs. off)
-55ºCgRoom Temp.g+155ºCgRoom Temp. for 5 Cycles
350ºC ±10ºC for 3±0.5 Seconds
Power Rating x Resistance Value
aPPraIse
±(0.25%+0.05Ω)
by Type
by Type
>10000MΩ
95% Min. Coverage
No deterioration of
Coatings and Markings
≧2.5kg
(24.5N)
±1.0%+0.05Ω
±1.5%+0.05Ω
±1.5%+0.05Ω
±0.75%+0.05Ω
±0.25%+0.05Ω
* Rated Continuous Working Voltage (RCW V)=
Microchip MCU
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