RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
EU
features
• RuO2 thick film resistor element
• Anti-leaching nickel barrier terminations
• 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 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
Type
(Inch Size Code)
Dimensions inches (mm)
L
W
c
d
t
L
c
c
1F
(01005)
.015 .001 .007 .001 .004 .001 .004 .001 .005 .001
(0.4 0.02) (0.2 0.02) (0.10 0.03) (0.11 0.03) (0.13 0.02)
W
d
1H
.024 .001 .012 .001 .004 .002 .006 .002 .009 .001
Solder
Plating
(0201)
(0.6 0.03) (0.3 0.03) (0.1 0.05) (0.15 0.05) (0.23 0.03)
+.004
+.002
.01
-.004
(0.25 +0.05
)
(0.35 0.05)
-0.1
.039
Ni
t
1E
(0402)
-.002
.02 .002 .008 .004
(0.5 0.05) (0.2 0.1)
.014 .002
Plating
(1.0 +0.1
)
-0.05
Protective
Coating
Resistive Inner
Film Electrode
1J
(0603)
.063 .008 .031 .004 .012 .004 .012 .004 .018 .004
(1.6 0.2)
(0.8 0.1)
(0.3 0.1)
(0.3 0.1) (0.45 0.1)
Ceramic
Substrate
+.008
.012
2A
(0805)
.079 .008 .049 .004 .016 .008
(2.0 0.2) (1.25 0.1) (0.4 0.2)
-.004
.02 .004
(0.5 0.1)
(0.3 +0.2
)
Derating Curve
-0.1
100
2B
.063 .008
(1206)
(1.6 0.2)
.126 .008
(3.2 0.2)
+.008
-.004
80
.016
2E
(1210)
.102 .008
(2.6 0.2)
(0.4 +0.2
)
-0.1
60
40
20
0
2H
(2010)
.197 .008 .098 .008
(5.0 0.2) (2.5 0.2)
1F, 1H
1E, 1J, 2A, 2B, 2E, 2H,
3A, W2H, W3A
.02 .012
(0.5 0.3)
.024 .004
(0.6 0.1)
W2H
(2010)
.026 .006
(0.65 0.15)
+.008
-.004
.016
3A
(2512)
0
20
40
60
80
100 120
125
Ambient Temperature
140
160 180
155
(0.4 +0.2
)
.248 .008 .122 .008
(6.3 0.2) (3.1 0.2)
70
-0.1
(°C)
W3A
(2512)
.026 .006
(0.65 0.15)
ordering information
New Part #
RK73B
2B
T
TD
102
J
Termination
Material
Nominal
Resistance
Type
Size
Packaging
Tolerance
TBL:01005 only: 2mm pitch pressed paper
TA: 0201 only: 1mm pitch pressed paper
TC: 0201 only: 7" 2mm pitch pressed paper
(TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel)
TCD: 0201 only: 10" 2mm pitch punched paper
TPL:0402 only: 2mm pitch punched paper
1F
1H
1E
1J
2A
2B
2E
2H
3A
T: Sn
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
G: 2%
J: 5%
(1F, 1H, 1E,
1J, 2A, 2B, 2E,
2H, 3A)
L: SnPb
(1E, 1J, 2A,
2B, 2E, 2H,3A)
TP: 0402, 0603 & 0805: 7" 2mm pitch punched paper
TD: 0603, 0805, 1206 &1210: 7" 2mm pitch punched paper
TDD: 0603, 0805, 1206 &1210: 10" paper tape
G: Au
(1E, 1J, 2A:
10Ω ~ 1MΩ -
Contact factory)
TE: 0805, 1206, 1210, 2010 & 2512: 7" punched plastic
TED: 0805, 1206, 1210, 2010 & 2512: 10" punched plastic
W2H
W3A
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.
10/29/08
8
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com