RK73H
precision 0.5%, 1% tolerance
thick film chip resistor
features
• 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 Qualified: 0201 (1H), 0402 (1E), 0603 (1J),
0805 (2A), 1206 (2B), 1210 (2E), 2010 (2H/W2H), 2512
(3A/W3A/W3A2)
Protective
Coating Inner
Electrode
Resistive
Film
Ceramic
Substrate
Solder
Plating
Ni
Plating
Lcc
W
t
d
dimensions and construction Type*
L
1H
(0201) .024±.001
(0.6±0.03)
.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
.012±.001
(0.3±0.03) .004±.002
(0.1±0.05) .006±.002
(0.15±0.05) .009±.001
(0.23±0.03)
1F
(01005) .016±.0008
(0.4±0.02) .008±.0008
(0.2±0.02) .004±.001
(0.1±0.03) .004±.001
(0.11±0.03) .005±.0008
(0.13±0.02)
.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)
.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)
1E
(0402)
1J
(0603)
2A
(0805)
2B
(1206)
(Inch Size Code) Wc d t
Dimensions inches (mm)
2E
(1210)
ordering information
D: ±0.5%
F: ±1%
T: Sn
(1F ~ W3A2)
Contact factory
for below
options:
L: SnPb
(1E, 1J, 2A, 2B,
2E, 2H, 3A)
G: Au
(1E ~ 2A:
10Ω ~ 1MΩ)
3 significant
figures + 1
multiplier
“R” indicates
decimal on
value <100Ω
1F
1H
1E
1J
2A
2B
2E
W2H
W3A
2H
3A
W3A2
TX: 01005 only: 4mm width - 1mm pitch
plastic embossed
TBL: 01005 only: 2mm pitch pressed paper
TC: 0201 only: 7" 2mm pitch pressed paper
(TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel)
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
TE: 0805, 1206, 1210, 2010 & 2512:
7" 4mm embossed plastic
For further information on packaging, please refer to Appendix A
RK73H
Type Size Nominal
Resistance Tolerance
Termination
Material Packaging
2B TD 1003 FT
EU
Derating Curve
.016 +.008
-.004
(0.4 +0.2)
-0.1
W2H
(2010)
.098±.008
(2.5±0.2)
.197±.008
(5.0±0.2)
2H
(2010)
W3A/W3A2
(2512)
.122±.008
(3.1±0.2)
.248±.008
(6.3±0.2)
3A
(2512)
.026±.006
(0.65±0.15)
.026±.006
(0.65±0.15)
* Parentheses indicate EIA package size codes.
resistors
17
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
100
80
60
40
20
-40 -20 0 60 80 100 120 140 160
12570
Ambie nt Tem pe rat ur e
(°C)
0
-60
155-55
20 40
1F1H, 1E, 1J, 2A, 2B,
2E, W2H, W3A (1W),
W3A2 (2W)
For resistors operated at an ambient
temperature of 70°C or higher, the
power shall be derated in accordance
with the above derating curve.
% Rated Power
100
80
60
40
20
-60 -40 -20 0 40 60 80 100 140
125
20
Terminal Part Temperature
(°C)
0
-55
120
155
160
1H, 1E, 1J, 2A, 2B, 2E,
W2H, W3A (1W)
70
When the terminal part temperature of the resistor exceeds the rated terminal part
temperature shown above, the power shall be derated according to the derating curve.
Please refer to “Introduction of the derating curves based on the terminal part temperature”
on the beginning of our catalog before use
% Rated Power
100
80
60
40
20
-60 -40 -20 0 40 60 80 100 14020
Terminal Part Temperature
(°C)
0
-55
120
155
160
W3A2
95
18 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
RK73H
precision 0.5%, 1% tolerance
thick film chip resistor
Maximum
Working
Voltage
F±1%
E-24, E-96*
D±0.5%
E-24, E-96
Part
Designation
Maximum
Overload
Voltage
Operating
Temperature
Range
Power
Rating T.C.R.
(x10-6/K)
applications and ratings
RK73H1H
(0201) 0.05W
0.1W
±200
±200
10Ω - 1MΩ10Ω - 10MΩ*
±400 1.0Ω - 9.1Ω*
10Ω - 1MΩ
25V 50V
-55°C to +125°C
-55°C to +155°C
Rated
Ambient
Temp.
70°C
Rated
Terminal
Part
Temp.
125°C
—
75V
75V
100V
150V
200V 400V
200V 400V
200V
RK73H2B
(1206)
RK73HW2H/2H
(2010)
RK73HW3A/3A
(2512)
RK73H2E
(1210)
RK73H1J
(0603)
1.02MΩ - 10MΩ
5.62MΩ - 10MΩ
5.62MΩ - 10MΩ
±100 1.02kΩ - 1MΩ1.02kΩ - 1MΩ
±200
±100
±200
1.02MΩ - 10MΩ
—
RK73H2A
(0805) 0.25W
0.25W
0.75W
1.0W
±100 10Ω - 1MΩ
10Ω - 1kΩ
10Ω - 1MΩ
10Ω - 1MΩ
—
—
10Ω - 1MΩ
±200 —
—
1.0Ω - 9.76Ω
1.0Ω - 9.76Ω
10Ω - 1MΩ
10Ω - 1MΩ
10Ω - 1MΩ10Ω - 1MΩ
1.0Ω - 9.76Ω, 1.02MΩ - 5.6MΩ
1.0Ω - 9.76Ω, 1.02MΩ - 5.6MΩ
—
—1.0Ω - 9.76Ω, 1.02MΩ - 5.6MΩ
5.62MΩ - 10MΩ
±400 —
—
—
—
±100
±200
±400
±100
±200
±400
5.62MΩ - 10MΩ
10Ω - 1MΩ
—
10Ω - 1MΩ
1.0Ω - 9.76Ω, 1.02MΩ - 5.6MΩ
—
±100
±200
±400
0.5W
±200
±400
±100
RK73H1E
(0402)
±100
1.0Ω - 9.76Ω, 1.02MΩ - 10MΩ
0.125W
0.1W
10Ω - 1kΩ
RK73H1F
(01005) 0.03W ±200 —100kΩ - 2MΩ*
±250 10Ω - 91kΩ*20V 30V
—
—
10Ω - 1MΩ
Performance Characteristics
Parameter
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) Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds)
±2% ±1%: 1F; ±0.5%: Another
Resistance to Soldering Heat 260°C ± 5°C, 10 seconds ± 1 second
±1%: 1F ~ W3A2 (10Ω≤R≤1MΩ);
±3%: 1H ~ W3A2 (R<10Ω, R>1MΩ)
±0.5%: 1F ~ W3A2 (10Ω<R<1MΩ);
±1%: 1H ~ W3A2 (R<10Ω, R>1MΩ)
Rapid Change of Temperature -55°C (30 minutes), +125°C (30 minutes), 100 cycles
±1%: 1F; ±0.5% Another ±0.5%: 1F; ±0.3% Another
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%: Another ±0.75%: 1J, 2A, 2B; ±1.5%:1F,
±1%: Another
Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle±2%: 1J, 2A, 2B; ±3%: Another
±0.75%: 1J, 2A, 2B; ±1%: Another
High Temperature Exposure +125°C, 1000 hours: 1F; +155°C, 1000 hours: 1E, 1H,
1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2
±1% ±0.5%: 1F
±0.3%: Another
environmental applications
Resistance Range
Rated voltage = √Power rating x resistance value or max. working voltage,
whichever is lower
*1F: E-24. 1H: 1.0~9.1, 1M~10MΩ: E-24. 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 based on the terminal part temperature” in the beginning of the catalog.
While using under high power, the temperature of the product may increase depending on the condition of heat dissipation
from PCB. Be sure to check the terminal part temperature as well as precautions to use on delivery specification before use.
200V 400V
RK73HW3A2
(2512) 2.0W
5.62MΩ - 10MΩ
10Ω - 1MΩ
—
10Ω - 1MΩ
1.0Ω - 9.76Ω, 1.02MΩ - 5.6MΩ
—
±100
±200
±400
95°C
Temperature Rise One-Pulse Limiting Electric Power
0.001 0.01 0.1 1 10 100 1000
100
10
1
0.1
0.01
2A
1J
1E
1H
1F
One-Pulse Limiting Electric
Pulse Duration
(ms)
One-Pulse Limiting Electric Power (W)
Pulse Duration
(ms)
0.001 0.01 0.1 1 10 100 1000
1000
100
10
1
W3A/W3A2
2H/W2H
2E
2B
0
10
20
30
40
60
0 25 50 75 100
Temperature Rise (°C)
Power Rating
(%)
1E
1J
1E
1J
1H
1F
1H
1F
50
0
10
20
30
40
50
60
70
80
90
100
0 25 50 75 100
2E
2E
2B
2A
2B
2A
Temperature Rise (°C)
Power Rating
(%)
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
RK73H 1F-1J RK73H 2A-2E RK73H W2H-W3A2 RK73H 2B-W3A2RK73H 1F-2A