features
•Two times the power rating of the standard body size
•Suitable for automatic machine inser tion
•Marking: Blue-gray body color with color-coded bands
182 KOA Speer Electr onics, Inc. • Bolivar Driv e • P.O. Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
MFS
reduced size metal film leaded resistor
dimensions and construction
Ceramic Core
d
D
Marking Resistive
Film
Insulation Coating
Trimming Line
End
Cap Lead
Wire
L l
C
L (ref.)
MFS1/4 .126
(3.2) .165
(4.2) .067±.008
(1.7±0.2) .018±.002
(0.45±0.05) 1.18±.118
(30.0±3.0)
.024±.002
(0.6±0.05)
.091±.012
(2.3±0.3)
.280
(7.1)
.248
(6.3)
MFS1/2
Type C (max.) D d l
Dimensions inches (mm)
1/4:T52,
T26, VT, MT,
M, U
1/2:VTP,
VTE, T52,
T26
ordering information
SN2C, MS5OSS
3 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
1/4: 0.25W
1/2: 0.5W C:±50
D:±100 L: SnPb
C:SnCu D:±0.5%
F: ±1.0%
G:±2.0%
J: ±5.0%
MFS 1/4
1001
D L
Type Resistance
F
Tolerance
T.C.R.Type Power
Rating Nominal
Resistance Tolerance
T.C.R.
Termination
Material Taping and
Forming
Packaging
Old Part #
New Par t #
DT52
T52 1001
A: Ammo
R: Reel
Packaging
R F
For further information on packaging,
please refer to Appendix C.
leaded
resistors
1218 Reader's Spreads 6/20/02 8:29 PM Page 181
183
KOA Speer Electr onics, Inc. • Bolivar Driv e • P.O. Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
MFS
reduced size metal film leaded resistor
Resistance
Range
E-96
(F±1%)
Part
Designation
Absolute
Maximum
Overload
Voltage
Operating
Temperature
Range
Power
Rating
@ 70°C
Minimum
Dielectric
Withstanding
Voltage
applications and ratings
MFS1/4
MFS1/2
0.25W
0.50W 500V10Ω- 1.0MΩ
10Ω- 12.21MΩ
500V
Absolute
Maximum
Working
Voltage
250V 700V350V
-55°C
to
+155°C
Derating Curve Surface Temperature Rise
environmental applications
% Rated Power
100
80
60
40
20
-60 -40 0 40 60 80 100 160
70
20
Ambient Temperature
(°C)
0
-55 120 155
-20 140
Temperature Rise (°C)
60
50
40
30
20
0255075
% Rated Power
0100
10
MFS1/2
MFS1/4
Resistance
T.C.R. 25°C
+25°C/-55°C and +25°C/+125°C
Within regulated tolerance
Within specified T.C.R.
—
Performance Characteristics
Parameter Requirement ∆R ±(% + 0.05Ω)
Limit Typical Test Method
Overload Rated voltage x 2.5 or maximum over load voltage
for 5 seconds, whichever is less
0.5
0.75
0.3
0.4
Resistance to Solder Heat 260°C ± 5°C for 10 seconds ± 1 second
0.3
1.0
1.5
Rapid Change of Temperature -55°C (30 minutes)/+155°C (30 minutes), 5 cycles
Moisture Resistance
Endurance @ 70°C
40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hour ON,
0.5 hr OFF cycle
70°C ± 2°C, 1000 hours, 1.5 hour ON, 0.5 hr OFF cycle
1.0
1.0 0.5
High Temperature Exposure +125°C, 100 hours
leaded
resistors
PMS 300 neg. Black neg.
1218 Reader's Spreads 6/20/02 8:29 PM Page 182
