RK73B
resistors
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
dimensions and construction
L
c
Type
c
L
(Inch Size Code)
Dimensions inches (mm)
W
c
d
t
.063±.008
.126±.008 (1.6±0.2)
(3.2±0.2) .102±.008
(2.6±0.2)
.197±.008 .098±.008
(5.0±0.2)
(2.5±0.2)
3A
(2512)
Ceramic
Substrate
.079±.008 .049±.004 .016±.008
(2.0±0.2) (1.25±0.1) (0.4±0.2)
2H
(2010)
Resistive Inner
Film
Electrode
.063±.008 .031±.004 .012±.004 .012±.004 .018±.004
(1.6±0.2)
(0.3±0.1) (0.45±0.1)
(0.8±0.1)
(0.3±0.1)
2E
(1210)
Protective
Coating
.039
2B
(1206)
d
1E
(0402)
2A
(0805)
Ni
Plating
t
.024±.001 .012±.001 .004±.002 .006±.002 .009±.001
(0.6±0.03) (0.3±0.03) (0.1±0.05) (0.15±0.05) (0.23±0.03)
1J
(0603)
Solder
Plating
.015±.001 .007±.001 .004±.001 .004±.001 .005±.001
(0.4±0.02) (0.2±0.02) (0.1±0.03) (0.1±0.03) (0.12±0.02)
1H
(0201)
NEW
W
1F
(01005)
.248±.008 .122±.008
(6.3±0.2)
(3.1±0.2)
(1.0
+.004
-.002
+0.1 )
-0.05
+.002
.02±.002 .008±.004 .01 -.004 .014±.002
(0.5±0.05) (0.2±0.1) (0.25 +0.05) (0.35±0.05)
-0.1
.012
(0.3
.016
(0.4
.02±.012
(0.5±0.3)
+.008
-.004
+0.2 )
-0.1
+.008
-.004
+0.2 )
-0.1
.02±.004
(0.5±0.1)
.024±.004
(0.6±0.1)
.025±.005
(0.65±0.15)
ordering information
New Part #
RK73B
2B
Type
Size
* Available ONLY in 1E, 1J
and 2A (10Ω - 1MΩ) chip sizes
1F
1H
1E
1J
2A
2B
2E
2H
3A
T
Termination
Material
T: Sn
X: AgPd**
G: Au*
L: SnPb
** Available ONLY in 1J, 2A and 2B (10Ω ~ 22MΩ) chip sizes
For further information on packaging, please refer to Appendix A.
TD
Packaging
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
(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)
102
Nominal
Resistance
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
8
J
Tolerance
G: ±2%
J: ±5%
4/20/05
KOA Speer Electronics, Inc. • Bolivar Drive • P Box 547 • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
.O.
