RK73-RT
flat chip resistors (anti-sulfuration)
features
Protective
Coating Inner
Electrode
Resistive
Film
Ceramic
Substrate
Solder
Plating
Ni
Plating
Lcc
W
t
d
dimensions and construction Type
L
.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
.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)
.098±.008
(2.5±0.2)
.122±.008
(3.1±0.2)
.023±.006
(0.65±0.15)
.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)
.197±.008
(5.0±0.2)
.248±.008
(6.3±0.2)
1E
(0402)
1J
(0603)
.009±.001
(0.23±0.03)
.006±.002
(0.15±0.05)
.004±.002
(0.1±0.05)
.012±.001
(0.3±0.03)
.024±.001
(0.6±0.03)
1H
(0201)
.005±.001
(0.13±0.02)
.004±.001
(0.11±0.03)
.004±.001
(0.1±0.03)
.008±.001
(0.2±0.02)
.016±.001
(0.4±0.02)
1F
(01005)
2A
(0805)
2B
(1206)
W2H
(2010)
W3A/
W3A2*
(2512)
(Inch Size
Code) Wc d t
Dimensions inches (mm)
2E
(1210)
ordering information
D: ±0.5%
F: ±1%
G: ±2%
J: ±5%
RT: Sn
Anti-Sulfur
RK73B:
3 digits
RK73H:
4 digits
RK73Z:
None
1F
1H
1E
1J
2A
2B
2E
W2H
W3A
New W3A2
RK73B
RK73H
RK73Z
RK73H
Type Power
Rating
Nominal
Resistance
Resistance
Tolerance
Termination
Surface Material Packaging
2A TD 1002 FRT
EU
• Excellent anti-sulfuration characteristic
due to using high sulfuration-proof inner
top electrode material
• Excellent heat resistance and weather
resistance are ensured by the use of metal glaze thick film
• High stability and high reliability with the triple-layer
structure of electrode
• 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 (W2H), 2512 (W3A)
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
TDD: 0603, 0805, 1206, 1210: 10" paper tape
TE: 0805, 1206, 1210, 2010 & 2512: 7" embossed plastic
TED: 0805, 1206, 1210, 2010 & 2512: 10" embossed plastic
For further information on packaging, please refer to Appendix A
21
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. 4/03/18
resistors
* RK73Z exempt
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. 11/03/17
RK73-RT
flat chip resistors (anti-sulfuration)
applications and ratings
Maximum
Working
Voltage
Resistance Range
D±0.5%
E24, E96
F±1%
E24, E96
G±2%
E24
J±5%
E24
1E
1J
2A
2B
2E
W2H
W3A
±100
±200
±100
±100
±200
±100
±200
±100
Part
Designation
Maximum
Overload
Voltage
Operating
Temp.
Range
Rated
Ambient
Temp.
Power
Rating
T.C.R.
(ppm/°C)
Max.
0.1W
0.1W
0.125W
0.25W
0.25W
0.5W
0.75W
1W
75V 100V
25V 50V
150V 200V
200V 400V
70°C
Rated
Terminal
Part
Temp.
––
125°C
1.02kΩ - 1MΩ
100Ω - 1MΩ
––
100Ω - 1MΩ
10Ω - 1MΩ
10Ω - 1MΩ10Ω - 1MΩ
10Ω - 1MΩ
1.02kΩ - 1MΩ
10Ω - 1MΩ
—
1.02MΩ - 10MΩ
100Ω - 1MΩ
–– 10Ω - 10MΩ
1.1kΩ - 10MΩ
10Ω - 10MΩ
—
-55°C
to
+155°C
-55°C
to
+125°C
1.02MΩ - 10MΩ
—
—
—
±200
1.02MΩ - 10MΩ
10Ω - 10MΩ
10Ω - 10MΩ
±100
—
1Ω - 1MΩ
—
10Ω - 1MΩ
±200
1.02MΩ - 10MΩ
±100 —
1Ω - 10MΩ
—
10Ω - 10MΩ
—
—
1Ω - 10MΩ
1H ±300
±200
0.05W 100Ω - 1MΩ100Ω - 100kΩ
10Ω - 97.6Ω
–– –– 100 - 1M
10Ω - 91Ω
1.1kΩ - 10MΩ
1Ω - 10MΩ
—
—
1Ω - 10MΩ
—
—
1Ω - 10MΩ
—
1Ω - 10MΩ
—
10Ω - 1MΩ
±200
1 - 9.76
1.02MΩ - 10MΩ
10Ω - 1MΩ
1.02MΩ - 10MΩ
—
100Ω - 1MΩ
RK73H RK73B
W3A2 ±100
±200
2W 10Ω - 1MΩ
10Ω - 10MΩ
—
1Ω - 10MΩ
—
10Ω - 1MΩ
1.02MΩ - 10MΩ
—
±250
±200
20V 30V
100kΩ - 2MΩ*100kΩ - 1MΩ
10Ω - 91kΩ* 10Ω - 91kΩ
100kΩ - 10MΩ
10Ω - 91kΩ
1F
0 - +300
0.03W
––
––
1Ω- 9.1Ω1Ω- 9.1Ω
NEW
resistors
±200
±100 10Ω - 1kΩ—
––
100Ω - 1kΩ
–– 10Ω - 1kΩ
—
1Ω - 1kΩ
*The nominal resistance value for RK73H1F (F:±1%) is E24
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.
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.
Rated voltage = √Power rating x resistance value or max. working voltage, whichever is lower
RK73B/RK73H
——
±200
% Rated Power
100
80
60
40
20
-60 -40 -20 0 40 60 80 100 140
70
20
Ambient Te mp eratu re
(°C)
0
-55
120
155
1H, 1E, 1J, 2A, 2B,
2E, W2H, W3A (1W)
125
1F
For resistors operated at an ambient temperature of 70°C
or above, a power rating shall be derated in accordance
with the above derating curve.
For resistors operated at a terminal part temperature
of described for each size or above, a power rating
shall be derated in accordance with the above
derating curve.
Please refer to “Introduction of the derating curve based
on the terminal part temperature” in the beginning of our
catalog before use.
Derating Curve
–– 95°C
% 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)
95
W3A2
Operating
Temperature
Range
Rated
Ambient
Temperature
Maximum
Surge
Current
Part
Designation Resistance Current
Rating
-55°C to +155°C
+70°C
Rated
Terminal Part
Temperature
+125°C
W2H
1E
1J
5A
10A
2A
1A 2A
0.5A 1A
50mΩ max.
100mΩ max.
1H
2A
2B
2E
W3A
Performance Characteristics
Parameter
RK73H, RK73B 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)
RK73B, RK73H Rated Voltage x 2.5 for 5 seconds
(1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds)
RK73Z: Max. overload current for 5 seconds
±2% ±1%: 1F
±0.8%: All others
Resistance to
Solder Heat 260°C ± 5°C, 10 seconds ± 1 second
±1%:10Ω≤R≤1MΩ
±3%: R<10Ω,
R>1MΩ
±1%: R<10Ω,
R>1MΩ
±0.5%: All others
Rapid Change
of Temperature -55°C (30 minutes), +125°C (30 minutes), 100 cycles
±1%: 1F
±0.5%: All others
±0.5%: 1F
±0.3%: All others
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%: All others
±0.75%: 1J, 2A, 2B
±1.5%: 1F
±1%: All others
Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
±2%: 1J, 2A, 2B
±3%: All others
±0.75%: 1J, 2A, 2B
±1%: All others
High Temperature
Exposure
+125°C, 1000 hours: 1F; +155°C, 1000 hours:
1H, 1E, 1J, 2A, 2B, 2E, W2H, W3A
±1% ±0.5%
RK73Z Requirement
Limit Typical
R≤100mΩ: 1H
R≤50mΩ: All others
—
R≤90mΩ: 1H
R≤40mΩ: All others
—
R≤100mΩ: 1H
R≤50mΩ: All others
R≤90mΩ: 1H
R≤40mΩ: All others
R≤100mΩ: 1H
R≤50mΩ: All others
R≤90mΩ: 1H
R≤40mΩ: All others
Sulfuration Test Soaked in industrial oil with 3.5% sulfur
concentration 105°C ± 3°C, 500 hours
±5% — R≤150mΩ: 1H
R≤100mΩ: All others —
R≤100mΩ: 1H
R≤50mΩ: All others
R≤90mΩ: 1H
R≤40mΩ: All others
R≤150mΩ: 1H
R≤100mΩ: All others
R≤100mΩ: 1H
R≤50mΩ: All others
R≤150mΩ: 1H
R≤100mΩ: All others
R≤100mΩ: 1H
R≤50mΩ: All others
R≤150mΩ: 1H
R≤100mΩ: All others
R≤100mΩ: 1H
R≤50mΩ: All others
environmental applications
RK73-RT
flat chip resistors (anti-sulfuration)
23
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. 11/03/17
resistors
RK73Z
applications and ratings (continued)
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
KOA Speer:
RK73B2ARTTD302J RK73Z1JRTTD RK73Z2ARTTD RK73Z1ERTTP RK73B2BRTTD1R0J RK73B1ERTTP2R2J
RK73B2BRTTD472J RK73B1ERTTP5R1J RK73B1JRTTD100J RK73B1ERTTP102J RK73B1ERTTP100J
RK73H1JRTTP5491F RK73B1JRTTD102J RK73Z2BRTTD RK73B1ERTTP103J RK73B2ARTTD1R5J
RK73B2ERTTD271J RK73B1JRTTD103J RK73B2BRTTD103J RK73B1ERTTP203J RK73B1JRTTD472J
RK73B2ARTTD470J RK73B2ERTTD241J RK73B1ERTTP472J RK73B2BRTTD152J RK73B2ERTTD361J
RK73B1ERTTP101J RK73B1ERTTP4R7J RK73B2ARTTD106J RK73B1ERTTP302J RK73B1ERTTP221J
RK73B2BRTTD102J RK73B1ERTTP331J RK73B2ARTTD1R8J RK73B2BRTTD106J RK73B1JRTTD101J
RK73B2BRTTD202J RK73B2ERTTD102J RK73B2ERTTD511J WK73S2BRTTD1R62F RK73B2ERTTD750J
RK73B2ERTTD161J RK73B1ERTTP155J RK73B1JRTTD822J RK73B1JRTTD391J RK73B1ERTTP430J
RK73B1ERTTP224J RK73B1JRTTD471J RK73B1JRTTD474J RK73B2ARTTD100J RK73B1JRTTD2R7J
RK73B1JRTTD202J RK73B2ERTTD121J RK73B2ERTTD471J RK73B2ARTTD512J RK73B1JRTTD302J
RK73B2ARTTD1R3J RK73B2ARTTD473J RK73B1ERTTP333J RK73B1JRTTD511J RK73B1ERTTP1R0J
RK73B2ARTTD510J RK73B1JRTTD821J RK73B2ERTTD220J RK73BW3ARTTE2R0J RK73B2ARTTD101J
RK73B1JRTTD305J RK73B1ERTTP152J RK73B1ERTTP682J RK73B1JRTTD752J RK73B2ERTTD330J
RK73B1JRTTD2R2J RK73B2ERTTD240J RK73B2ERTTD681J RK73H1JRTT5102F RK73B2ERTTD560J
RK73B2BRTTD431J RK73B2BRTTD510J RK73B2ERTTD620J RK73B2ERTTD130J RK73H1JRTT2203F
RK73B2ERTTD510J RK73B2ERTTD101J RK73B1JRTTD1R5J RK73B2BRTTD272J RK73B2ERTTD431J
RK73B2ERTTD680J RK73B2ERTTD820J RK73H1JRTT2402F RK73B2ERTTD200J RK73B2ARTTD1R2J
RK73B2BRTTD471J RK73B2ERTTD150J RK73B2ERTTD270J RK73B2ERTTD430J RK73B2ERTTD390J
RK73B2ERTTD621J RK73H1JRTT1501F RK73H1JRTT9103F RK73B2BRTTD511J
