x _OA
KDA SPEER ELECTRONICS. INC.
(mam)
(m %)
22 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. 10/19/20
resistors
RK73G
thick film 0.25%, 0.5%, 1% tolerance, 50ppm/°C
chip resistor
Absolute
Maximum
Working
Voltage
E-24, E-96
(F±1%)
E-24, E-96
(D±0.5%)
Part
Designation*
Absolute
Maximum
Overload
Voltage
Power
Rating
T.C.R.
(ppm/°C)
Max.
applications and ratings
RK73G1E
(0402)
RK73G1J
(0603)
RK73G2A
(0805)
RK73G2B
(1206)
1/10W (.10W)
1/10W (.10W)
1/8W (.125W)
1/4W (.25W)
±50
Rated
Ambient
Temp.
70°C
Rated
Terminal
Part Temp.
125°C 10Ω - 1MΩ
10Ω - 1MΩ
50V
150V
200V
100V
75V 150V
200V
400V
Operating Temperature Range: -55°C ~ +155°C
* Parentheses indicate EIA package size codes.
** RK73G1H available in E-24 decade values only
For Surface Temperature Rise Graph see Environmental Applications. Additional environmental applications can also be found at www.koaspeer.com
RK73G1H
(0201) 1/20W (.05W) 100Ω - 1MΩ**
New
E-24, E-96
(C±0.25%)
100Ω - 1MΩ
–– 100Ω - 1MΩ** 25V 50V
Performance Characteristics
Parameter
Requirement ∆ R ±(%+0.1Ω)
Limit Typical Test Method
Resistance
T.C.R.
25°C
1H: +25°C/+125°C, 1E, 1J, 2A, 2B: +25°C/-55°C and +25°C/+125°C
Within specified
tolerance
Within specified
T.C.R.
—
—
Overload (Short time) Rated Voltage x 2.5 for 5 seconds
(1E, 2B: Rated Voltage x 2 for 5 seconds)
±2% ±0.6%
Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second
±1% ±1%: 1H, ±0.4%:
1E, 1J, 2A, 2B
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%: 1H, 1E ±0.6%: 1J, 2A,
2B; ±1%: 1H, 1E
Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
±2%: 1J, 2A, 2B
±3%: 1H, 1E ±0.6%: 1J, 2A,
2B; ±1%: 1H, 1E
High Temperature Exposure +155°C, 1000 hours
±1% ±0.6%
environmental applications
Resistance Range
Temperature Rise One-Pulse Limiting Electric Power
One-Pulse Limiting Electric Power (W)
Pulse Duration
(ms)
0.001 0.01 0.1 1 10 100 1000
100
10
1
0.1
2B
1J
1E
1H
2A
Temperature Rise (°C)
Power Rating
(%)
0
10
20
30
40
50
60
0 25 50 75 100
1E
1E
1J
1J
Temperature Rise (°C)
Power Rating
(%)
0
10
20
30
40
50
60
70
0 25 50 75 100
2B
2B
2A
2A
Regarding the temperature rise, the value of the temperature
varies per conditions and board for use since the temperature
is measured under our measuring conditions.
The maximum applicable voltage is equal to the max. overload voltage. Please
ask us about the resistance characteristic of continuous applied pulse. The pulse
endurance values are not assured values,so be sure to check the products on
actual equipment when you use them.
②: Terminal
①: Hot spot
Measurement condition
Room temperature: 25°C
PCB: FR-4t = 1.6mm
Cu foil thickness: 35µm
RK73G 1E-1J RK73G 2A-2B RK73G 1H-2B