RF73
fusing flat chip resistor
EU
features
• Anti-leaching nickel barrier terminations
• Suitable for flow and reflow soldering
• Performs like RK73 under normal conditions
• Fuses when overloaded
• Marking: Black three-digit on brown protective coating
• Products with lead-free terminations meet EU RoHS
requirements. Pb located in glass material, electrode
and resistor element is exempt per Annex 1, exemption
5 of EU directive 2005/95/EC
dimensions and construction
L
Type
(Inch Size Code)
Dimensions inches (mm)
c
c
L
W
c
d
t
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)
W
d
.02 .004
+.008
.012
Solder
Plating
2A
.079 .008 .049 .004 .016 .008
-.004
(0.5 0.1)
(0.3 +0.2
)
(0805)
(2.0 0.2) (1.25 0.1) (0.4 0.2)
-0.1
Ni
t
2B
(1206)
.063 .008
Plating
(1.6 0.2)
.126 .008
(3.2 0.2)
Protective
Coating
Resistive Inner
Film Electrode
2E
(1210)
.102 .008
(2.6 0.2)
+.008
-.004
.016
.02 .012
.024 .004
(0.6 0.1)
(0.4 +0.2
)
(0.5 0.3)
Ceramic
Substrate
2H
(2010)
.197 .008 .098 .008
(5.0 0.2) (2.5 0.2)
-0.1
3A
(2512)
.248 .008 .122 .008
(6.3 0.2)
(3.1 0.2)
ordering information
New Part #
RF73
2B
T
TD
100
J
Size Code
Termination
Material
Nominal
Resistance
Type
Packaging
Tolerance
1J: 0603
2A: 0805
2B: 1206
2E: 1210
2H: 2010
3A: 2512
T: Sn
TD: 7" paper tape
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
J: 5%
(0603, 0805, 1206, 1210:
5,000 pieces/reel)
TE: 7" punched plastic
(0805, 1206, 1210, 2010,
2512: 4,000 pieces/reel)
(Other termination
styles may be
available, please
contact factory
for options)
For further information on packaging,
please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/20/08
173
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com