MF-SERIES
GENERAL PURPOSE METAL FILM RESISTORS
Small Size
Low Cost
Resistance Tolerances
0.1%,0.5%,1% & 5% @ 25°C
Temperature Coefficients
25, 50 & 100PPM/°C
PRECISION RESISTIVE PRODUCTS, INC.
202 MACK LANE, MEDIAPOLIS, IA 52637
(319)394-9131 FAX (319)394-9280
E-Mail
info@prpinc.com
PRP HOME PAGE http://www.prpinc.com
Dimensions
Style
MF-12 /
MF-16
MF-25
MF-50
MF-100
Inches (mm)
Max. L.
Max. Dia.
.067 ±.008
(1.70 ±0.20)
.091 ±.008
(2.30 ±0.20)
.138 ±.020
(3.50 ±0.50)
.177 ±.020
(4.50 ±0.50)
.217 ±.020
(5.50 ±0.05)
Lead Dia.
.018 ±.002
(0.45 ±0.05)
.020 ±.0004
(0.50 ±0.01)
.022 ±.0004
(0.55 ±0.01)
.029 ±.002
(0.73 ±0.05)
.030 ±.002
(0.75 ±0.05)
Lead L.
.984
(25.0)
.984
(25.0)
.984
(25.0)
.984
(25.0)
.984
(25.0)
Conformal Coating
Color Band Marking
Packaging is Tape & Reel
Lead L.
MF-200
Max. L.
Max. Dia.
Lead Dia.
.146 ±.016
(3.70 ±0.40)
.256 ±.020
(6.50 ±0.50)
.354 ±.039
(9.00 ±1.00)
.472 ±.039
(12.0 ±1.00)
.630 ±.039
(16.0 ±1.00)
*
MF-25 & MF-50 are also available with .022 inch Diameter Leads
Specifications
Style
MF-12
MF-16
MF-25
MF-50
MF-100
MF-200
Power Rating
@ 70°C
T100 & TC50
Range (Ω)
0.1%
─
─
0.25%
0.5%, 1%
51.1R - 511K
51.1R - 511K
10R - 1M
10R - 1M
10R - 1M
10R - 1M
0.1%
TC25
Range (Ω)
0.25%
100R - 100K
100R - 100K
100R -
330K
100R -
511K
100R -
511K
100R -
511K
0.5%, 1%
Voltage
Voltage
Max. Working Max. Overload
@ 70°C
@ 70°C
.125W
.16W
.25W
.5W
1W
2W
200V
200V
5.11R -
511K
51.1R - 1M
51.1R - 1M
51.1R - 1M
400V
400V
500V
700V
1000V
1000V
100R -
100K
100R -
330K
100R -
330K
100R -
330K
250V
350V
500V
500V
Operating Temperature Range -55°C to 155°C
Lead Tape Packaging Per EIA RS-296
Available Resistance Values
0.5% = E192
1% = E96
5% = E24 & E48
How to Order
Sample Part Number
MF25
T100
47R
±1%
Resistance Tolerance
Resistance Value
Temperature Coefficient
Style
Add “T” at the end of the Style portion of the part number for lead free termination.
DEDICATION TO EXCELLENCE
Subject to change without notice
Rev. J
2/7/13
Characteristic
DC RESISTANCE
TEMPERATURE
COEFFICIENT
Specification
Test Method
(All resistance measurements should be
performed after stabilization or
conditioning periods.)
MIL-STD-202
Method 303
MIL-STD-202
Method 304
MIL-STD-202
Method 301
1/8W 300V 1 minute
1/4W 500V 1 minute
1/2W 700V 1 minute
1, 2W 750V 1 minute
MIL-STD-202
Method 302
100V 1 minute
MIL-STD-202
Method 308
MIL-STD-202
Method 201
10~ Hz
X.Y.Z. 3 directions
2 hours each.
MIL-STD-202
Method 211
MIL-STD-202
Method 210
350°C, 3 ±0.05 seconds
MIL-STD-202
Method 208
230°C, 5 seconds
MIL-STD-202
Method 107
-55°C, +155°C
5 cycles
MIL-R-10509
Para, 4.6.6
2.5 times rated working
voltage, 5 seconds
MIL-STD-202
Method 103
40°C, RH 95% 500
MIL-R-10509
Para 4.6.5
Rated working
voltage, @ -65°C 45 minutes.
MIL-STD-202
Method 108
Rated working
Voltage 1 ½ hours on. ½ hour
off for total 1000 hours
MIL-STD-202
Method 215
Within specified
tolerance.
As buyer requested
±25PPM/°C ±100PPM/°C
±50PPM/°C ±200PPM/°C
DIELECTRIC
STRENGTH
No flashover or
damage
INSULATION
RESISTANCE
CURRENT NOISE
TEST
At least 1000M
below 10K below 0.05 V/V
10K ~below 0.1 V/V
below 1M below 0.2 V/V
VIBRATION
R within ±(0.25% + 0.05 )
TERMINAL
STRENGTH
RESISTANCE TO
SOLDERING HEAT
SOLDERABILITY
No broken or loosened
terminals.
R within ±(0.25% + 0.05 )
At least 95% coverage
THERMAL SHOCK
R within ±(0.5% + 0.05 )
SHORT TIME
OVERLOAD
R within ±(0.05% + 0.05 )
HUMIDITY
R within ±(1% + 0.05 )
NO mechanical damage
LOW TEMPERATURE
OPERATION
R within ±(0.5% + 0.05 )
LOAD LIFE
R within ±(1% + 0.05 )
RESISTANCE TO
SOLVENT
Color bands legible.
No mechanical damage.
CURRENT NOISE
u
V/V
1.0
0.32
0.10
0.032
0.010
0.003
10
100
1K
10K
100K
dB
0
-10
-20
-30
-40
-50
1M
Nominal Resistance
Subject to change without notice
Rev. J
2/7/13
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