flat chip resistor
(ultra precision grade, anti-sulfuration)
EU
features
•
Excellent anti-sulfuration characteristic due
to using high sulfuration-proof inner top electrode material
•
Metal-glaze thick film resistor for surface mounting
•
High precision resistor with T.C.R. ±50x10
-6
/K
and tolerace ±0.25%
•
Suitable for both flow and reflow solderings
•
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.
•
AEC-Q200 Tested
dimensions and construction
c
L
c
Type
(Inch Size Code)
L
.039
(1.0
+.004
-.002
+0.1
)
-0.05
Dimensions
inches
(mm)
W
c
d
t
W
Sn
Plating
t
d
Protective
Coating
Resistive Inner
Film
Electrode
Ni
Plating
1E
(0402)
1J
(0603)
2A
(0805)
2B
(1206)
+.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
.063±.008 .031±.004 .012±.004 .012±.004 .018±.004
(1.6±0.2)
(0.8±0.1)
(0.3±0.1) (0.45±0.1)
(0.3±0.1)
.079±.008 .049±.004 .016±.008
(2.0±0.2) (1.25±0.1) (0.4±0.2)
.126±.008 .063±.008
(3.2±0.2)
(1.6±0.2)
.02±.012
(0.5±0.3)
.012
(0.3
.016
(0.4
+.008
-.004
+0.2
)
-0.1
+.008
-.004
+0.2
)
-0.1
Ceramic
Substrate
.02±.004
(0.5±0.1)
.024±.004
(0.6±0.1)
Derating Curve
100
80
100
80
% Rated Power
60
40
20
0
-60 -40 -20
-55
% Rated Power
60
40
20
0
-60 -40
-55
-20
0
20
40
60
80
100
70
Ambient Temperature
(°C)
120 140
155
0
100 120 140 160
125
155
Terminal Part Temperature
(°C)
20
40
60
80
For resistors operated at an ambient temperature of 70°C or above,
a power rating shall be derated in accordance with the derating curve.
ordering information
RK73G
Type
2A
Size
1E: 0.1W
1J: 0.1W
2A: 0.125W
2B: 0.25W
R
Characteristic
R: Anti-Sulfur
T
Termination
Material
T: Sn
For resistors operated terminal part temperature of described for each size or
above, a power rating shall be derated in accordance with the derating curve.
Please refer to “Introduction of the derating curve based on the terminal part
temperature” in the beginning of our catalog before use.
TD
Packaging
TPL: 0402 only: 2mm pitch punched paper
TP: 0402, 0603: 7" 2mm pitch punched
paper
TD: 0603, 0805, 1206: 7" 4mm pitch
punched paper
TE: 0805, 1206: 7" 4mm plastic embossed
For further information on packaging,
please refer to Appendix A
1002
Nominal
Resistance
3 significant
figures + 1
multiplier “R”
indicates
decimal on
value <100Ω
D
Tolerance
C: ±0.25%
D: ±0.5%
F: ±1%
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
10/22/21
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
53
resistors
RK73G-RT
RK73G-RT
flat chip resistor
(ultra precision grade, anti-sulfuration)
applications and ratings
Part
Designation
RK73G1E
(0402)
RK73G1J
(0603)
RK73G2A
(0805)
RK73G2B
(1206)
Power
Rating
1/10W (.10W)
1/10W (.10W)
+70°C
1/8W (.125W)
1/4W (.25W)
+125°C
±50
100Ω -
1MΩ
30Ω - 1MΩ 30Ω - 1MΩ
150V
200V
200V
400V
Resistance Range
Rated
Rated
Maximum Maximum
Operating
T.C.R.
Ambient Terminal
Working Overload Temperature
-6
E-24, E-96 E-24, E-96 E-24, E-96
Temp. Part Temp. (X 10 /K) (C±0.25%) (D±0.5%)
Voltage
Voltage
Range
(F±1%)
––
50V
75V
100V
150V
-55°C to
+155°C
resistors
Rated voltage =
√Power
rating x resistance value or max. working voltage, whichever is lower
If any questions arise whether to use the “Rated Ambient Temperature” or the “Rated Terminal Part Temperature,” please give priority to the
“Rated Terminal Part Temperature.” Prior to use and for more details refer to “Introduction of the derating curves in the terminal part temperature”
in the beginning of the catalog.
environmental applications
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Solder Heat
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
High Temperature Exposure
Sulfuration Test
Requirement
∆
R ±(%+0.1Ω)
Limit
Typical
Within specified
—
tolerance
Within specified
—
T.C.R.
±2%
±1%
±0.5%
±2%: 1J, 2A, 2B
±3%: 1E
±2%: 1J, 2A, 2B
±3%: 1E
±1%
±5%
±0.6%
±0.4%
±0.3%
±0.6%: 1J, 2A,
2B; ±1%: 1E
±0.6%: 1J, 2A,
2B; ±1%: 1E
±0.6%
±0.2%
Test Method
25°C
+25°C/-55°C and +25°C/+125°C
Rated Voltage x 2.5 for 5 seconds
(1E, 2B: Rated Voltage x 2 for 5 seconds)
260°C ± 5°C, 10 seconds ± 1 second
-55°C (30 minutes), +125°C (30 minutes), 100 cycles
40°C ± 2°C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
+155°C, 1000 hours
Soaked in industrial oil with sulfur substance 3.5% contained
105°C ± 3°C, 500 hours
Please refer to conventional products for characteristic data such as temperature rise.
For Surface Temperature Rise Graph see Environmental Applications. Additional environmental applications can also be found at 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.
11/06/19
54
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
