RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
EU
features
• Marking: No marking on 1F, 1H & 1E
sizes, black protective coat.
White, three-digit marking on
1J ~ 3A on black protective coat.
• 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.
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)
.039 +.004
.01 +.002
(0.25 +0.05
)
(0.35 0.05)
-0.1
Ni
Plating
t
1E
(0402)
-.002
.02±.002 .008±.004
(0.5 0.05) (0.2 0.1)
-.004
.014±.002
(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
.012 +.008
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)
.016 +.008
80
2E
(1210)
.102±.008
(2.6 0.2)
-.004
(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)
.016 +.008
3A
(2512)
-.004
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)
* Parentheses indicate EIA package size codes.
ordering information
New Part #
RK73B
2B
T
TD
102
J
Termination
Material
Nominal
Resistance
Type
Size
Packaging
Tolerance
TX: 01005 only: 4mm width - 1mm pitch plastic embossed
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 pressed paper
1F
1H
T: Sn
(1F ~ 3A)
2 significant
figures + 1
multiplier
G:±2%
J: ±5%
Contact factory
for below options:
1E
“R” indicates
decimal on
value <10Ω
1J
L: SnPb
(1E ~ 3A)
2A
TPL:0402 only: 2mm pitch punched paper
2B
G: Au
(1E ~ 2A:
10Ω ~ 1MΩ)
TP: 0402, 0603 & 0805: 7" 2mm pitch punched paper
TD: 0603, 0805, 1206 &1210: 7" 4mm pitch punched paper
TDD: 0603, 0805, 1206 &1210: 10" paper tape
TE: 0805, 1206, 1210, 2010 & 2512: 7" plastic embossed
TED: 0805, 1206, 1210, 2010 & 2512: 10" plastic embossed
2E
W2H
W3A
2H
X: Bondable
(1J ~ 2E:
10Ω ~ 1MΩ)
For further information on packaging, please refer
to Appendix A
3A
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
4/27/11
8
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com