resistors
RF73
fusing flat chip resistor
EU
features
• Performs like RK73 under normal conditions
• Fuses when overloaded
• Marking: Black three-digit on brown protective coating
1J: No marking
• Products with lead-free terminations meet EU RoHS
requirements. EU RoHS regulation is not intended for
Pb-glass contained in electrode, resistor element and glass.
• Recognized by safety standard UL1412. (0603 (1J) is
not recognized)
dimensions and construction
Type
L
c
(Inch Size Code)
c
W
Solder
Plating
Ni
Plating
t
d
Protective
Coating
Resistive Inner
Film
Electrode
Ceramic
Substrate
L
Dimensions inches (mm)
W
c
d
1J
(0603)
.063±.008 .031±.004 .012±.004 .012±.004
(1.6±0.2)
(0.8±0.1)
(0.3±0.1)
(0.3±0.1)
2A
(0805)
.079±.008 .049±.004 .016±.008
(2.0±0.2) (1.25±0.1) (0.4±0.2)
2B
(1206)
2E
(1210)
.063±.008
.126±.008 (1.6±0.2)
(3.2±0.2) .102±.008
(2.6±0.2)
2H
(2010)
.197±.008 .098±.008
(5.0±0.2)
(2.5±0.2)
3A
(2512)
.248±.008 .122±.008
(6.3±0.2)
(3.1±0.2)
.02±.012
(0.5±0.3)
.012
(0.3
.016
(0.4
+.008
-.004
+0.2 )
-0.1
+.008
-.004
+0.2 )
-0.1
t
.02±.004
(0.5±0.1)
.024±.004
(0.6±0.1)
ordering information
New Part #
RF73
Type
2B
T
Size
Code
1J: 0603
2A: 0805
2B: 1206
2E: 1210
2H: 2010
3A: 2512
Termination
Material
T: Sn
(Other termination
styles may be
available, please
contact factory
for options)
TD
Packaging
TD: 7" paper tape
(0603, 0805, 1206, 1210:
5,000 pieces/reel)
TE: 7" embossed plastic
(0805, 1206, 1210, 2010,
2512: 4,000 pieces/reel)
100
Nominal
Resistance
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value
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