14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/22/10
RK73-RT
flat chip resistors (anti-sulfuration)
features
Derating Curve
% Rated Power
100
80
60
40
20
-60 -40 -20 0 406080100140
70
20
Ambient Tempe rature
(°C)
0
-55
120
155
Protective
Coating Inner
Electrode
Resistive
Film
Ceramic
Substrate
Solder
Plating
Ni
Plating
Lcc
W
t
d
dimensions and construction
Type
L
.039 +.004
-.002
(1.0 +0.1 )
-0.05
.01 +.002
-.004
(0.25 +0.05)
-0.1
.012 +.008
-.004
(0.3 +0.2)
-0.1
.016 +.008
-.004
(0.4 +0.2)
-0.1
.014±.002
(0.35±0.05)
.018±.004
(0.45±0.1)
.012±.004
(0.3±0.1)
.02±.004
(0.5±0.1)
.024±.004
(0.6±0.1)
.008±.004
(0.2±0.1)
.012±.004
(0.3±0.1)
.016±.008
(0.4±0.2)
.02±.012
(0.5±0.3)
.063±.008
(1.6±0.2)
.102±.008
(2.6±0.2)
.098±.008
(2.5±0.2)
.122±.008
(3.1±0.2)
.023±.006
(0.65±0.15)
.126±.008
(3.2±0.2)
.049±.004
(1.25±0.1)
.031±.004
(0.8±0.1)
.02±.002
(0.5±0.05)
.063±.008
(1.6±0.2)
.079±.008
(2.0±0.2)
.197±.008
(5.0±0.2)
.248±.008
(6.3±0.2)
1E
(0402)
1J
(0603)
2A
(0805)
2B
(1206)
W2H
(2010)
W3A
(2512)
(Inch Size Code) Wc d t
Dimensions inches (mm)
2E
(1210)
ordering information
D: ±0.5%
F: ±1%
G: ±2%
J: ±5%
RT: Sn
Anti-Sulfur RK73B:
3 digits
RK73H:
4 digits
RK73Z:
None
1E
1J
2A
2B
2E
W2H
W3A
RK73B
RK73H
RK73Z
RK73H
Type Power
Rating Nominal
Resistance Resistance
Tolerance
Termination
Surface Material Packaging
New Part # 2A TD 1002 FRT
EU
•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
•Marking: Z1E: Green protective coating
RK73B1E ~ W3A, RK73Z1J ~ W3A: Black
protective coating
RK73H1E ~ W3A: Blue protective coating
•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.
TPL: 0402 only: 2mm pitch punch paper
TP: 0402, 0603, 0805: 7" 2mm pitch punch 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" embossed plastic
TED: 0805, 1206, 1210, 2010 & 2512: 10" embossed plastic
For further information on packaging, please refer to
Appendix A
resistors
RK73-RT
flat chip resistors (anti-sulfuration)
15
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 1/19/11
Operating
Temperature
Range
Rated
Ambient
Temperature
Maximum
Surge
Current
Part
Designation* Resistance Current
Rating
applications and ratings
-55°C to +155°C+70°C
RK73ZW2H
RK73Z1E
RK73Z1J
5A
10A
2A
1A 2A
50mΩ max.
Maximum
Working
Voltage
Resistance Range
E24, E96
(D±0.5%) E24, E96
(F±1%) E24
(G±2%) E24
(J±5%)
RK73B1E
RK73H1E
RK73B1J
RK73H1J
RK73B2A
RK73H2A
RK73B2B
RK73H2B
RK73B2E
RK73H2E
RK73BW2H
RK73HW2H
RK73BW3A
RK73HW3A
±100
±200
±100
±200
±100
±200
±100
±200
±100
Part
Designation
Maximum
Overload
Voltage
Operating
Temp.
Range
Rated
Ambient
Temp.
Power
Rating
@ 70°C
T.C.R.
(ppm/°C)
Max.
0.063W
0.1W
0.125W
0.25W
0.5W
0.33W
0.5W
0.33W
0.75W
1W
50V 100V
150V 200V
200V 400V
+70°C
100Ω - 1MΩ
100Ω - 1MΩ
––
100Ω - 1MΩ
——
1.02kΩ - 1MΩ
10Ω - 1MΩ10Ω - 1MΩ
10Ω - 1MΩ
10Ω - 1MΩ
10Ω - 1MΩ
—
1.02MΩ - 10MΩ
100Ω - 1MΩ
–– 10Ω - 10MΩ
10Ω - 10MΩ
10Ω - 10MΩ
—
-55°C
to
+155°C
1.02MΩ - 10MΩ
—
10Ω - 1kΩ
1.1kΩ - 1MΩ
—
—
±200
1.02MΩ - 10MΩ
10Ω - 1kΩ
10Ω - 10MΩ
±100
—
1.02kΩ - 1MΩ—
10Ω - 1MΩ
±200
1.02MΩ - 10MΩ
±100 —
10Ω - 10MΩ
—
10Ω - 10MΩ
—
—
1Ω - 10MΩ
1Ω - 10MΩ
1Ω - 10MΩ
—
—
1Ω - 1kΩ
1.1kΩ - 1MΩ
1Ω - 10MΩ
—
—
1Ω - 10MΩ
—
1Ω - 10MΩ
—
10Ω - 1MΩ
±200
1.02MΩ - 10MΩ
10Ω - 1MΩ
1.02MΩ - 10MΩ
—
100Ω - 1kΩ
RK73H RK73B
RK73Z2A
RK73Z2B
RK73Z2E
RK73ZW3A
Performance Characteristics
Parameter
RK73H, RK73B Requirement ∆ R
±(%+0.1Ω)
Limit Typical Test Method
Resistance
T.C.R.
25°C
+25°C/-55°C and +25°C/+125°C
Within specified
tolerance
Within specified
T.C.R.
—
—
Overload (Short time) RK73B, RK73H Rated Voltage x 2.5 for 5 seconds
(2B: Rated Voltage x 2 for 5 seconds)
RK73Z: Max. surge current for 5 seconds
±2% ±0.8%
Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second
±1%:10Ω≤R≤1MΩ;
±3%: R<10Ω,
R>1MΩ
±1%: R<10Ω,
R>1MΩ; ±0.5%:
All others
Rapid Change of Temperature -55°C (30 minutes), +125°C (30 minutes), 100 cycles
±0.5% ±0.3%
Moisture Resistance 40°C ± 2°C, 90%-95% RH, 1000 hours,
1.5 hr ON, 0.5 hr OFF cycle
±2%: 1J, 2A, 2B
±3%: All others ±0.75%: 1J, 2A, 2B;
±1%: All others
Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
±2%: 1J, 2A, 2B
±3%: All others ±0.75%: 1J, 2A, 2B;
±1%: All others
High Temperature Exposure +155°C, 1000 hours
±1% ±0.5%
RK73Z Requirement
Limit Typical
R≤50mΩ
N/A
R≤40mΩ
N/A
R≤50mΩR≤40mΩ
R≤50mΩR≤40mΩ
Sulfuration Test H2S 1000 ppm, 25°C, 90%Rh, 720 hours
— ±0.5% —R≤40mΩ
R≤50mΩR≤40mΩ
R≤100mΩR≤50mΩ
R≤100mΩR≤50mΩ
R≤50mΩR≤40mΩ
resistors
environmental applications
