Through-hole resis Tors
Professional Type
Metal Film Resistors
Miniature Style [ MF0 Series ]
FeATures
Power Rating 0.4W, 0.6W
Resistance Tolerance 0.5%, 1%, 5%,
T.C.R. 50ppm/C
Der ATiNg Cur Ve
For resistors operated in ambient temperatures above 70C, power rating must be derated
iNTro Du CTio N
in accordance with the curve below.
The MF0 Series Metal Film Professional
70 155 C
Rated Load (%)
100
Resistors are manufactured using a vacuum
80
sputtering system to deposit multiple layers of
60
mixed metal alloys and passivative materials
onto a carefully treated high grade ceramic 40
substrate. After a helical groove has been cut
20
in the resistive layer, tinned connecting leads of
20 40 60 80 100 120 140 160 Ambient Temperature (C)
electrolytic copper are welded to the end-caps.
The resistors are coated with layers of blue
color lacquer.
DiMeNsio Ns
Unit: mm
s TYle DiMeNs io N
Miniature l D h d
d
MF0204 3.40.3 1.90.2 282.0 0.450.05
H L D
MF0207 6.30.5 2.40.2 282.0 0.550.059
Note:
ele CTri CAl Ch Ar ACTeris TiCs
s TYle MF0204 MF0207
Power Rating at 70C 0.4W 0.6W
Maximum Working Voltage 250V 350V
Maximum Overload Voltage 500V 700V
Voltage Proof on Insulation 300V 500V
Resistance Range 1 - 10M & 0 for E24 & E96 series value
Operating Temp. Range -55C to +155C
Temperature Coefficient 50ppm/C
Note: Special value is available on request
eNViro NMeNTAl Ch Ar ACTeris TiCs
Per For MANCe Tes T Tes T MeTho D APPr Aise
Shor t Time Overload IEC 60115-1 4.13 2.5 times RCWV for 5 Sec. 0.25%+0.05
Voltage Proof on Insulation IEC 60115-1 4.7 in V-block for 60 Sec., test voltage by type By type
Temperature Coefficient IEC 60115-1 4.8 -55C to +155C By type
Insulation Resistance IEC 60115-1 4.6 in V-block for 60 Sec. >10,000M
Solderability IEC 60115-1 4.17 2355C for 30.5 Sec. 95% Min. coverage
No deterioration of
Solvent Resistance of Marking IEC 60115-1 4.30 IPA for 50.5 Min. with ultrasonic
coatings and markings
Robustness of Terminations IEC 60115-1 4.16 Direct load for 10 Sec. in the direction of the terminal leads 2.5kg (24.5N)
Periodic-pulse Overload IEC 60115-1 4.39 4 times RCWV 10,000 cycles (1 Sec. on, 25 Sec. off) 1.0%+0.05
Damp Heat Steady State IEC 60115-1 4.24 402C, 90-95% RH for 56 days, loaded with 0.1 times RCWV 1.5%+0.05
Endurance at 70C IEC 60115-1 4.25 702C at RCWV for 1,000 Hr. (1.5 Hr. on, 0.5 Hr. off) 1.5%+0.05
Temperature Cycling IEC 60115-1 4.19 -55C Room Temp. +155C Room Temp. (5 cycles) 0.75%+0.05
Resistance to Soldering Heat IEC 60115-1 4.18 2603C for 101 Sec., immersed to a point 30.5mm from the body 0.25%+0.05
Note: RCWV(Rated Continuous Working Voltage) = Power Rating x Resistance Value or Max. working voltage listed above, whichever less. Revision: 201304