SURFACE MOUNT RESISTORS
RMF Series: Fusible Thick Film Surface Mount
INTRODUCTION
RFE International, Inc. offers a wide range of chip
resistors to meet your application requirements. They are
made with metal glazed thick film on a high purity
ceramic substrate which is overcoated for stability and
protection. These resistors are lead free. The RMF
Series Fusible Resistor is ideal for circuits where a
predictable fusing time is important. The RMF Series is
AEC-Q200 Qualified.
RoHS
ü
D
Glass Passivation
H
C
L
W
DIMENSIONS
Type
RM04 (0402)
RM06 (0603)
RM10 (0805)
RM12 (1206)
RM25 (1210)
RM50 (2010)
L
1.0 + 0.1
1.6 + 0.2
2.0 + 0.2
3.2 + 0.2
3.2 + 0.2
5.0 + 0.2
W
0.5 + 0.05
0.8 + 0.15
1.25 + 0.15
1.6 + 0.12
2.5 + 0.2
2.5 + 0.2
3.1 + 0.2
Dimensions (mm)
H
C
D
0.2 + 0.1
0.3 + 0.15
0.3 + 0.15
0.4 + 0.2
0.5 + 0.2
0.6 + 0.2
0.6 + 0.2
0.35 + 0.05 0.20 + 0.1
0.50 + 0.1
0.30 + 0.2
0.50 + 0.15 0.40 + 0.2
0.60 + 0.15 0.45 + 0.2
0.60 + 0.15 0.50 + 0.2
0.60 + 0.1
0.65 + 0.1
0.60 + 0.2
0.60 + 0.2
RML1W (2512) 6.3 + 0.2
RATINGS
Type
Power
Rating
0.1W
0.125W
0.15W
0.25W
0.5W
0.75W
1.0W
Max
Max
Working Overload
Voltage Voltage
50V
50V
150V
200V
200V
200V
200V
100V
100V
300V
400V
400V
400V
400V
30
Second
Fusing
Power
2.5W
3W
3.25W
5W
7.5W
11.25W
15W
1
Ω-
47
Ω
+ 600 ppm
48Ω ~ 470Ω
+ 400 ppm
471Ω ~ 10KΩ
+ 200 ppm
Temp.
Coefficient
(ppm / °C)
Available
Range
1Ω ~ 1KΩ
1Ω ~ 1.8KΩ
1
Ω
~ 3K
Ω
1
Ω
~ 5.1K
Ω
1
Ω
~ 6.2K
Ω
1
Ω
~ 7.5K
Ω
1
Ω
~ 10K
Ω
RMF04 (0402)
RMF06 (0603)
RMF10 (0805)
RMF12 (1206)
RMF25 (1210)
RMF50 (2010)
RMF1W (2512)
• Standard Resistance Range is 1W thru 10KW on EIA Standard Value Table E-24
• Standard Resistance Tolerance +5% or 10%
DERATING CURVE
Operating Temp. Range -55°C ~ +155°
PART NUMBER EXAMPLE
155°C
100
70°C
RMF 50 R - 4R7 - J
Rated Load (%)
80
60
40
20
0
-55 -30
0
20
40
60
80
100 120 140 160 180
Ambient Temperature (°C)
RFE International
• Tel:(949) 833-1988 • Fax:(949) 833-1788 • E-Mail Sales@rfeinc.com
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2012.12.20
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