RK73-RT
resistors
flat chip resistors (anti-sulfuration)
features
•
Excellent anti-sulfuration characteristic
due to using high sulfuration-proof inner
top electrode material
•
Excellent heat resistance and weather
resistance are ensured by the use of metal glaze thick film
•
High stability and high reliability with the triple-layer
structure of electrode
•
Suitable for both flow and reflow solderings
•
Marking: Black protective coat on RK73B, RK73Z1J, 2A,
2B, 2E, W2H, W3A
Blue protective coat on RK73H
Green protective coat on RK73Z1E
•
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
Type
Solder
Plating
t
d
Protective
Coating
Resistive Inner
Film
Electrode
Ni
Plating
EU
dimensions and
construction
c
L
c
W
(Inch Size Code)
L
.039
(1.0
+.004
-.002
+0.1
-0.05
)
Dimensions
inches
(mm)
W
c
d
t
1E
(0402)
1J
(0603)
2A
(0805)
2B
(1206)
2E
(1210)
W2H
(2010)
+.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
Ceramic
Substrate
Derating Curve
100
80
% Rated Power
60
40
20
0
-60 -40
-55
.063±.008 .031±.004 .012±.004 .012±.004 .018±.004
(0.3±0.1) (0.45±0.1)
(0.3±0.1)
(1.6±0.2)
(0.8±0.1)
.079±.008 .049±.004 .016±.008
(2.0±0.2) (1.25±0.1) (0.4±0.2)
.063±.008
.126±.008
(1.6±0.2)
(3.2±0.2)
.102±.008
(2.6±0.2)
.197±.008 .098±.008
(2.5±0.2)
(5.0±0.2)
.248±.008 .122±.008
(3.1±0.2)
(6.3±0.2)
.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)
-20
0
80
70
Ambient Temperature
(°C)
20
40
60
100 120
140
155
W3A
(2512)
.023±.006
(0.65±0.15)
ordering information
New Part #
RK73H
Type
RK73B
RK73H
2A
Power
Rating
1E
1J
2A
2B
2E
W2H
W3A
2A
Current
Rating
1E, 1J: 1A
2A, 2B, 2E,
W2H, W3A
RT
Termination
Surface Material
RT: Sn
Anti-Sulfur
TD
Packaging
TPL: 0402 only: 2mm pitch punch paper
TP: 0402, 0603, 0805: 7" 2mm pitch punch paper
TD: 0603, 0805, 1206, 1210:7" 2mm pitch punched paper
TDD: 0603, 0805, 1206, 1210: 10" paper tape
TE: 0805, 1206, 1210, 2010 & 2512: 7" punched plastic
TED: 0805, 1206, 1210, 2010 & 2512: 10" punched plastic
For further information on packaging, please refer to
Appendix A
1002
Nominal
Resistance
RK73B:
3 digits
RK73H:
4 digits
F
Resistance
Tolerance
D: ±0.5%
F: ±1%
G: ±2%
J: ±5%
New Part #
RK73Z
Type
RT
Termination
Surface Material
RT: Sn
Anti-Sulfur
TD
Packaging
TPL: 0402 only: 2mm pitch punch paper
TP: 0402, 0603, 0805: 7" 2mm pitch punch paper
TD: 0603, 0805, 1206, 1210:7" 2mm pitch punched paper
TDD: 0603, 0805, 1206, 1210: 10" paper tape
TE: 0805, 1206, 1210, 2010 & 2512: 7" punched plastic
TED: 0805, 1206, 1210, 2010 & 2512: 10" punched plastic
For further information on packaging, please refer to Appendix A
10/30/08
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
14
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
KOA [ KOA SPEER ELECTRONICS, INC. ]
