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.
4/03/18
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
13
RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
resistors
applications and ratings
Part
Designation
Power
Rating
Rated
Ambient
Temp.
Rated
Terminal
Part
Temp.
—
T.C.R.
(x10
-6
/K)
±200
RK73B1F
(01005)
RK73B1H
(0201)
RK73B1E
(0402)
RK73B1J
(0603)
RK73B2A
(0805)
RK73B2B
(1206)
RK73B2E
(1210)
RK73BW2H/2H
(2010)
RK73BW3A/3A
(2512)
NEW
RK73BW3A2
(2512)
0.03W
±250
0~+300
±200
±400
±200
±200
±400
±200
±200
70°C
125°C
0.25W
0.50W
0.75W
1.0W
2.0W
––
95°C
±400
±200
±400
±200
±400
±200
±400
±200
±400
±200
±400
Resistance Range
G±2%
E-24
100kΩ - 1MΩ
10Ω - 91kΩ
1Ω - 9.1Ω
10Ω - 10MΩ
—
1Ω - 10MΩ
1.1kΩ - 1MΩ
—
1Ω - 1kΩ
1Ω - 1MΩ
1.1MΩ - 10MΩ
1Ω - 5.6MΩ
6.2MΩ - 10MΩ
10Ω - 5.6MΩ
—
10Ω - 5.6MΩ
—
10Ω - 5.6MΩ
—
10Ω - 5.6MΩ
—
J±5%
E-24
100kΩ - 10MΩ
10Ω - 91kΩ
1Ω - 9.1Ω
10Ω - 10MΩ
1Ω - 9.1Ω
1Ω - 10MΩ
1.1kΩ - 10MΩ
11MΩ - 22MΩ
1Ω - 1kΩ
1Ω - 1MΩ
1.1MΩ - 10MΩ
1Ω - 5.6MΩ
6.2MΩ - 22MΩ
1Ω - 5.6MΩ
6.2MΩ - 10MΩ
1Ω - 5.6MΩ
6.2MΩ - 22MΩ
1Ω - 5.6MΩ
6.2MΩ - 22MΩ
1Ω - 5.6MΩ
6.2MΩ - 22MΩ
200V
200V
400V
400V
200V
400V
75V
20V
30V
50V
Maximum
Working
Voltage
Maximum
Overload
Voltage
Operating
Temperature
Range
-55°C to
+125°C
0.05W
0.1W
0.1W
0.125W
0.25W
25V
50V
100V
150V
200V
-55°C to
+155°C
Rated voltage =
√Power
rating x resistance value or max. working voltage, whichever is lower
If any questions arise on whether to use the “Rated Ambient Temperaute” or the “Rated Terminal Part Temperature” in your usage conditions, please give priority to the “Rated
Terminal Part Temperature.” Prior to use and for more details, refer to “Introduction of the derating curves based on the terminal part temperature” in the beginning of our catalog.
Temperature rise at high power will depend on PCB layout. Be sure to contact factory prior to use and monitor terminal part temperature.
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