RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
features
• RuO2 thick film resistor element
• Anti-leaching nickel barrier terminations
• Also available with epoxy bondable palladium
silver terminations in 1J, 2A and 2B sizes.
• Meets or exceeds EIA 575, EIAJ RC 2690A,
EIA PDP-100, MIL-R-55342F
• Marking: White three-digit on black protective coat
No marking on 1F, 1H and 1E sizes
• Products with lead-free terminations meet
RoHS requirements
dimensions and construction
L
Type
(Inch Size Code)
Dimensions inches (mm3
c
c
L
W
c
d
t
1F
(01005)
.015 .001 .007 .001 .031 .001 .004 .001 .005 .001
(0.4 0.023 (0.2 0.023 (0.8 0.0ꢀ3 (0.11 0.0ꢀ3 (0.1ꢀ 0.023
W
d
1H
.024 .001 .012 .001 .004 .002 .006 .002 .009 .001
Solder
Plating
(0201)
(0.6 0.0ꢀ3 (0.ꢀ 0.0ꢀ3 (0.1 0.053 (0.15 0.053 (0.2ꢀ 0.0ꢀ3
.039 +.004
(1.0 +-00..1053
.01 +.002
Ni
t
1E
(0402)
-.002 .02 .002 .008 .004
-.004 .014 .002
Plating
(0.25 +0.05
(0.5 0.053 (0.2 0.13
(0.ꢀ5 0.053
3
-0.1
Protective
Coating
Resistive Inner
Film Electrode
1J
(0603)
.063 .008 .031 .004 .012 .004 .012 .004 .018 .004
(1.6 0.23
(0.8 0.13
(0.ꢀ 0.13
(0.ꢀ 0.13 (0.45 0.13
Ceramic
Substrate
.012 +.008
(0.ꢀ +-00..213
(0.5 0.13
2A
(0805)
.079 .008 .049 .004 .016 .008
(2.0 0.23 (1.25 0.13 (0.4 0.23
-.004 .02 .004
2B
.063 .008
(1206)
(1.6 0.23
.126 .008
(ꢀ.2 0.23
2E
(1210)
.102 .008
(2.6 0.23
.016 +.008
(0.4 +-00..213
(0.6 0.13
.02 .012
(0.5 0.ꢀ3
.024 .004
-.004
2H
(2010)
.197 .008 .098 .008
(5.0 0.23 (2.5 0.23
3A
(2512)
.248 .008 .122 .008
(6.ꢀ 0.23
(ꢀ.1 0.23
ordering information
New Part #
RK73B
2B
T
TD
102
J
Termination
Material
Nominal
Resistance
Type
Size
Packaging
Tolerance
1F
1H
1E
1J
2A
2B
2E
2H
3A
T: Sn
L: SnPb
(Other termination
styles available,
contact factory
for options)
TC: 2mm pitch punched pressed paper
(01005 & 0201 only)
TB: 2mm pitch pressed paper
(0201 only)
TP: 2mm pitch punched paper
(0402 & 0603)
TD: 7" paper tape
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
G: 2ꢀ
J: 5ꢀ
(0603, 0805, 1206 &1210)
TDD: 10" paper tape
(0603, 0805, 1206 &1210)
TE: 7" punched plastic
(0805, 1206, 1210, 2010 & 2512)
TED: 10" punched plastic
(0805, 1206, 1210, 2010 & 2512)
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.
2/06/06
8
KOA Speer Electronics, Inc. • Bolivar Drive • P.O. Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com