MFM Series

MFM Series
Film Resistors
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•
•
•
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Resistances from 10 Ohms to 2.25MOhms
Power Rating to 1 Watt
Resistance Tolerances to ±0.05%
TCR’s to ±5ppm/°C
Convenient RN Type Package Styles
SPECIFICATIONS
Type
MFM55
DIN
MFM60
MFM65
0204
0207
Resistance Range
10 Ohms to 2.25MOhms
Power rating (70°C)
0.50W
0.60W
Tolerances
1.0W
0.05% / 0.1% / 0.25% / 0.5% / 1% / 5%
Temperature Coefficient
5 / 10 / 15 / 25 / 50ppm/°C
Operating Voltage (Umax)
300V
300V
Operating Temperature Range
350V
-55 to 125°C
Insulation Resistance
>1G
Insulation Voltage
>500V
Test
Conditions
Short Time Overload
2.5X rated power up to 2X Vmax; 5s
Allowable Change ΔR/R
Solderability
Solder Bath; 260°C for 5s ± 1s
Temperature Cycling
30min at -55°C, 30min at +155°C, 5 cycles
Humidity Cycling
40 ± 2°C, 93 +2/-3% RH, 56 days
±0.10% + 0.05 Ω
Vibration
10 to 2000Hz for 6h
Load Life (1000h)
P70 up to Vmax, 1.5h on 0.5h off, 1000h, 70°C
±0.25% + 0.05 Ω
Load Life (8000h)
P70 up to Vmax, 1.5h on 0.5h off, 8000h, 70°C
±1.00% + 0.05 Ω (Tight Tolerance)
±2.00% + 0.05 Ω (Normal Tolerance)
Power Derating Curve
120
Power ( % )
100
80
60
40
20
0
0
25
50
75
100
125
150
175
200
Ambient Temperature (°C)
Ordering Information
Part Description: Part Type - Resistance - Tolerance
MFM55 100 kOhms 0.5%
Riedon Inc.
06/13
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
MFM Series
Film Resistors
SPECIFICATIONS (continued)
Dimensions
Type
Dimension
mm
tol.
(±mm)
inches
tol.
(±inches)
0.008
MFM55
MFM60
MFM65
L
3.50
0.2
0.14
L1
1.50
0.2
0.06
0.008
D
1.30
0.2
0.05
0.008
0.004
K
0.60
0.1
0.02
D1
1.30
MAX
0.051
MAX
L
5.70
0.2
0.22
0.008
L1
2.90
0.2
0.11
0.008
D
2.10
0.2
0.08
0.008
0.004
K
1.00
0.1
0.04
D1
2.10
MAX
0.083
MAX
L
6.00
0.2
0.24
0.008
L1
3.20
0.2
0.16
0.008
D
2.10
0.2
0.08
0.008
K
1.00
0.1
0.04
0.004
D1
2.10
MAX
0.083
MAX
Type
Dimension
mm
tol.
(±mm)
inches
tol.
(±inches)
S
1.50
0.2
0.06
0.008
MFM55
W
2.80
0.2
0.11
0.008
H
2.80
0.2
0.11
0.008
0.008
MFM60
MFM65
S
2.90
0.2
0.11
W
3.20
0.2
0.13
0.008
H
3.20
0.2
0.13
0.008
0.008
S
3.20
0.2
0.13
W
3.50
0.2
0.14
0.008
H
3.50
0.2
0.14
0.008
Ordering Information
MFM70 1 MOhms 5%
MFM55 100 kOhms 0.5%
Riedon Inc.
06/13
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704