general purpose 2%, 5% tolerance
thick film chip resistor
EU
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
tested:
0201 (1H), 0402 (1E), 0603 (1J),
0805 (2A), 1206 (2B), 1210 (2E), 2010 (2H/W2H),
2512 (3A/W3A/W3A2)
dimensions and construction
c
W
Sn
Plating
t
d
Protective
Coating
Resistive Inner
Film
Electrode
100
80
% Rated Power
1H, 1E, 1J, 2A, 2B,
2E, W2H, W3A (1W),
W3A2 (2W)
1H, 1E, 1J, 2A, 2B, 2E,
W2H, W3A (1W)
Type*
(Inch Size Code)
L
c
L
Dimensions
inches
(mm)
W
c
d
t
1F
(01005)
Ni
Plating
.015±.001 .007±.001 .004±.001 .004±.001 .005±.001
(0.4±0.02) (0.2±0.02) (0.10±0.03) (0.11±0.03) (0.13±0.02)
.024±.001 .012±.001 .004±.002 .006±.002 .009±.001
(0.6±0.03) (0.3±0.03) (0.1±0.05) (0.15±0.05) (0.23±0.03)
.039
(1.0
+.004
-.002
+0.1
)
-0.05
+.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
1H
(0201)
1E
(0402)
1J
(0603)
2A
(0805)
2B
(1206)
2E
(1210)
2H
(2010)
W2H
(2010)
Derating Curve
100
80
60
40
20
0
-60 -40 -20
-55
0
20
40
60
80
1F
Ceramic
Substrate
.063±.008 .031±.004 .012±.004 .012±.004 .018±.004
(1.6±0.2)
(0.8±0.1)
(0.3±0.1)
(0.3±0.1) (0.45±0.1)
.079±.008 .049±.004 .016±.008
(2.0±0.2) (1.25±0.1) (0.4±0.2)
.063±.008
.126±.008
(1.6±0.2)
(3.2±0.2)
.102±.008
(2.6±0.2)
.197±.008 .098±.008
(5.0±0.2)
(2.5±0.2)
.012
(0.3
+.008
-.004
+0.2
)
-0.1
60
40
20
0
-60
-55
.02±.004
(0.5±0.1)
-40
-20
0
20
40
60
80
100 120
140
160
155
70
Terminal Part Temperature
(°C)
125
.016
(0.4
100 120 140
125
160
155
100
80
% Rated Power
60
40
20
0
-60
-55
W3A2
70
Ambient Temperature
(°C)
+.008
-.004
+0.2
)
-0.1
For resistors operated at an ambient
temperature of 70°C or higher, the
power shall be derated in accordance
with the above derating curve.
.02±.012 .026±.006 .024±.004
(0.5±0.3) (0.65±0.15) (0.6±0.1)
.016
(0.4
+.008
-.004
+0.2
)
-0.1
-40
-20
0
20
40
60
80
100 120 140
160
155
95
Terminal Part Temperature
(°C)
3A
(2512)
W3A/W3A2
(2512)
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
.248±.008 .122±.008
(6.3±0.2)
(3.1±0.2)
.026±.006
(0.65±0.15)
* Parentheses indicate EIA package size codes.
ordering information
RK73B
Type
2B
Size
1F
1H
1E
1J
2A
2B
2E
W2H
W3A
2H
3A
W3A2
T
Termination
Material
T: Sn
(1F ~ W3A2)
Contact factory
for below options:
L: SnPb
(1E, 1J, 2A, 2B,
2E, 2H, 3A)
G: Au
(1E ~ 2A:
10Ω ~ 1MΩ)
TD
Packaging
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 punched paper
TP: 0402, 0603 & 0805: 7" 2mm pitch punched paper
TD: 0603, 0805, 1206 &1210: 7" 4mm pitch punched paper
TE: 0805, 1206, 1210, 2010 & 2512: 7" 4mm plastic
embossed
For further information on packaging, please refer to Appendix A
102
Nominal
Resistance
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
J
Tolerance
G: ±2%
J: ±5%
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
07/15/21
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
15
resistors
RK73B
RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
applications and ratings
Part
Designation
RK73B1F (01005)
RK73B1H (0201)
RK73B1E (0402)
RK73B1J (0603)
RK73B2A (0805)
RK73B2B (1206)
RK73B2E (1210)
RK73BW2H/2H
(2010)
RK73BW3A/3A
(2512)
RK73BW3A2
(2512)
Power
Rating
Rated
Ambient
Temp.
Rated
Terminal
Part
Temp.
—
T.C.R.
(x10
-6
/K)
±200
±250
0~+300
±200
±400
±200
±200
±400
±200
±200
±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
Maximum
Working
Voltage
20V
25V
75V
75V
150V
100V
Maximum
Overload
Voltage
30V
50V
Operating
Temperature
Range
-55°C to
+125°C
1E
90
2E
2E
2B
2A
2B
2A
Temperature Rise (°C)
1E
1J
Temperature Rise (°C)
80
70
60
50
40
30
20
10
Temperature Rise (°C)
50
1J
250
One-Pulse Limiting Electric
W3A2
W3A2
10
2A
1
1J
1E
0.1
1H
1F
One-Pulse Limiting Electric Power (W)
resistors
0.03W
0.05W
0.1W
0.1W
0.125W
0.25W
0.25W
0.50W
0.75W
1.0W
2.0W
70°C
200V
-55°C to
+155°C
125°C
95°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.
environmental applications
Temperature Rise
RK73B 1F-1J
60
One-Pulse Limiting Electric Power
100
RK73B 2A-2E
100
RK73B W2H-W3A2
300
RK73B 1F-2A
1000
RK73B 2B-W3A2
40
1H
1F
1H
200
W3A
100
W3A/W3A2
30
1F
150
W2H
W3A
20
100
2H/W2H
10
2E
2B
1
0.001
0.01
0.1
1
10
100
1000
W2H
10
50
0
0
25
50
75
100
0
0
25
50
75
100
0
0
25
50
75
100
Power Rating
(%)
Power Rating
(%)
Power Rating
(%)
Measurement condition
Room temperature: 25°C
PCB: FR-4t = 1.6mm
Cu foil thickness: 35µm
①:
Hot spot
②:
Terminal
0.01
0.001
0.01
0.1
1
10
100
1000
Pulse Duration
(ms)
Pulse Duration
(ms)
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.
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Soldering Heat
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
High Temperature Exposure
Limit
Requirement
∆
R (%+0.1Ω)
Typical
—
—
±1%: 1F
±0.5%: Another
±0.5%: 1F~W3A2 (10Ω≤R≤1MΩ);
±1%: 1F~W3A2 (R<10Ω, R>1MΩ)
±0.5%: 1F
±0.3%: Another
±0.75%: 1J, 2A, 2B
±1.5%: 1F; ±1%: Another
±0.75%: 1J, 2A, 2B
±1%: Another
±0.5%: 1F
±0.3%: Another
25°C
+25°C/-55°C and +25°C/+125°C
Rated Voltage x 2.5 for 5 seconds
(1E, 2B, W3A2: 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
+125°C, 1000 hours: 1F; +155°C, 1000 hours: 1E, 1H,
1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2
10/19/20
Test Method
Within specified tolerance
Within specified T.C.R.
±2%
±1%: 1F~W3A2 (10Ω≤R≤1MΩ)
±3%: 1F~W3A2 (R<10Ω, R>1MΩ)
±1%: 1F
±0.5%: Another
±2%: 1J, 2A, 2B
±3%: Another
±2%: 1J, 2A, 2B
±3%: Another
±1%
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
16
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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