RoHS
SURFACE MOUNT RESISTORS
ü
RM Series: Less Than 1 ohm & Greater than 10 Meg ohms
DIMENSIONS
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.
D
Glass Passivation
RATINGS FOR LOW RESISTANCE <1W
Resistance Range
Rated
Max
Max
H
T.C.R.
(
)
TYPE
Power at Working Overload
W
°
(PPM/ C)
°
70 C
F(+1%), J(+5%)
0.1W ~ 0.3W
Voltage Voltage
W
C
+700
+500
RM04
0.063 W 0.43V
0.86V
W
0.33 ~ 0.99
W
L
+1000
+600
+400
0.05W ~ 0.091W
0.1W ~ 0.3W
RM06
RM10
0.1 W
0.55V
1.08V
1.22V
0.125 W 0.61V
0.33W ~ 0.99W
+800
+600
+500
+400
0.01W ~ 0.049W
0.05W ~ 0.091W
RM12
RM25
0.25 W
0.33 W
0.5 W
0.86V
0.99V
1.22V
1.74V
1.98V
2.44V
Dimensions (mm)
Type
L
W
H
C
D
0.1 ~ 0.3
W
W
RM04 (0402) 1.0 + 0.1 0.5 + 0.05 0.35 + 0.05 0.20 + 0.1 0.2 + 0.1
RM06 (0603) 1.6 + 0.2 0.8 + 0.15 0.50 + 0.1 0.30 + 0.2 0.3 + 0.15
RM10 (0805) 2.0 + 0.2 1.25 + 0.15 0.50 + 0.15 0.40 + 0.2 0.3 + 0.15
RM12 (1206) 3.2 + 0.2 1.6 + 0.12 0.60 + 0.15 0.45 + 0.2 0.4 + 0.2
RM25 (1210) 3.2 + 0.2 2.5 + 0.2 0.60 + 0.15 0.50 + 0.2 0.5 + 0.2
RM50 (2010) 5.0 + 0.2 2.5 + 0.2 0.60 + 0.1 0.60 + 0.2 0.6 + 0.2
RM50S (1812) 4.5 + 0.1 3.01 + 0.1 0.80 + 0.1 0.55 + 0.05 0.4 + 0.1
RM1W (2512) 6.3 + 0.2 3.1 + 0.2 0.65 + 0.1 0.60 + 0.2 0.6 + 0.2
RM1WS (1218) 3.0 + 0.1 4.6 + 0.1 0.55 + 0.05 0.45 + 0.1 0.4 + 0.1
RM2W (2030) 5.1 + 0.1 7.6 + 0.1 0.60 + 0.05 0.80 + 0.1 0.7 + 0.1
0.33 ~ 0.99
W
W
RM50S
+800
+600
+400
+800
+400
+300
+800
+700
+500
+400
+800
0.01W ~ 0.091W
0.1W ~ 0.3W
0.33 ~ 0.99
RM50
0.5 W
1.22V
2.44V
W
W
0.01W ~ 0.049W
0.05W ~ 0.091W
0.1W ~ 0.99W
RM1WS
1 W
1.72V
3.46V
0.01W ~ 0.049W
0.05W ~ 0.091W
0.1W ~ 0.3W
RM1W
1 W
1.72V
3.46V
W
0.33 ~ 0.99
W
RM2W
2 W
2.44V
4.88V
0.02W~ 0.99W
RATINGS FOR HIGH RESISTANCE >10W
Resistance Range
Rated
Max
Max
T.C.R.
(
)
TYPE
Power at Working Overload
W
°
(PPM/ C)
°
70 C
F(+1%), J(+5%)
10.1M ~ 54M
10.1M ~ 100M
10.1M ~ 54M
10.1M ~ 100M
10.1M ~ 54M
10.1M ~ 100M
10.1M ~ 54M
10.1M ~ 100M
10.1M ~ 54M
10.1M ~ 100M
10.1M ~ 54M
10.1M ~ 100M
10.1M ~ 54M
10.1M ~ 100M
10.1M ~ 54M
10.1M ~ 100M
10.1M ~ 54M
10.1M ~ 100M
10.1M ~ 54M
10.1M ~ 100M
Voltage Voltage
50V
RM04 0.0625W
100V
100V
300V
400V
400V
400V
400V
400V
400V
400V
+200
+200
+200
+200
+200
+200
+200
+200
+200
+200
RM06
0.1W
0.125W
0.25W
0.33W
0.5W
0.5W
1W
50V
RM10
150V
200V
200V
200V
200V
200V
200V
200V
DERATING CURVE
Operating Temp. Range -55°C ~ +155°
RM12
70°C
155°C
100
80
60
40
20
0
RM25
RM50S
RM50
-30
0
20
60 80 100 120
160
140
-55
40
RM1WS
RM1W
RM2W
180
Ambient Temperature (°C)
1.0W
2.0W
PART NUMBER EXAMPLE
RM 10 R - 0R02 - J
C2BB02
REV 2009.3.13
RFE International • Tel:(949) 833-1988 • Fax:(949) 833-1788 • E-Mail Sales@rfeinc.com