RK73B
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 Qualified: 0201 (1H), 0402 (1E), 0603 (1J),
0805 (2A), 1206 (2B), 1210 (2E), 2010 (2H/W2H),
2512 (3A/W3A/W3A2)
dimensions and construction
Type* Dimensions inches (mm)
(Inch Size Code)
L Wc d t
L
c c
1F .015.001 .007.001 .004.001 .004.001 .005.001
(01005) (0.40.02) (0.20.02) (0.100.03) (0.110.03) (0.130.02)
W
1H .024.001 .012.001 .004.002 .006.002 .009.001
Solder
(0201) (0.60.03) (0.30.03) (0.10.05) (0.150.05) (0.230.03)
Plating
+.004 +.002
.039 .01
Ni
t 1E -.002 .02.002 .008.004 -.004 .014.002
Plating
+0.1 +0.05
(0402) (0.50.05) (0.20.1) (0.350.05)
(1.0 ) (0.25 )
-0.05 -0.1
Protective Resistive Inner
d
Coating Film Electrode
1J .063.008 .031.004 .012.004 .012.004 .018.004
(0603) (1.60.2) (0.80.1) (0.30.1) (0.30.1) (0.450.1)
Ceramic
Substrate
+.008
.012
2A .079.008 .049.004 .016.008 -.004 .02.004
Derating Curve
(0805) (2.00.2) (1.250.1) (0.40.2) +0.2 (0.50.1)
(0.3 )
-0.1
100 100
80 80 2B .063.008
1H, 1E, 1J, 2A, 2B, 2E,
W2H, W3A (1W)
(1206) (1.60.2)
.126.008
60 60
+.008
W3A2
.016
(3.20.2)
2E .102.008 -.004
40 40
1F 1E, 1H, 1J, 2A, 2B, 2E, 2H,
(1210) (2.60.2) +0.2
3A, W2H, W3A3A, W2H, W3A
(0.4 )
-0.1
20 20
2H
0 0
(2010)
0 20 40 60 80 100 120 140 160 180 -60 -40 -20 0 20 40 60 80 100 120 140 160 .197.008 .098.008
70 125 155 -55 95 125 155
(5.00.2) (2.50.2)
Ambient Temperature Terminal Part Temperature
W2H .02.012 .024.004
.026.006
(C) (C)
(2010) (0.50.3) (0.60.1)
(0.650.15)
For resistors operated at an ambient For resistors operated at a terminal part
+.008
temperature of 70C or above, a power temperature of described for each size or .016
3A -.004
rating shall be derated in accordance above, a power rating shall be derated in
(2512) +0.2
(0.4 )
with the above derating curve. accordance with the above derating curve. .248.008 .122.008
-0.1
(6.30.2) (3.10.2)
Please refer to Introduction of the derating
W3A/W3A2 .026.006
curve based on the terminal part temperature
(2512) (0.650.15)
in the beginning of our catalog before use.
* Parentheses indicate EIA package size codes.
ordering information
RK73B 2B T TD 102 J
Termination Nominal
Type Size Packaging Tolerance
Material Resistance
TX: 01005 only: 4mm width - 1mm pitch plastic embossed
1F T: Sn 2 significant G:2%
(1F ~ W3A2) TBL:01005 only: 2mm pitch pressed paper figures + 1
1H J: 5%
TA: 0201 only: 1mm pitch pressed paper multiplier
Contact factory
1E
TC: 0201 only: 7" 2mm pitch pressed paper
for below options: R indicates
1J
(TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel)
decimal on
L: SnPb
2A TCD: 0201 only: 10" 2mm pitch pressed paper
value <10
(1E, 1J, 2A, 2B,
TPD: 0402 only: 10" plastic embossed
2B
2E, 2H, 3A)
TPL: 0402 only: 2mm pitch punched paper
2E
G: Au
TP: 0402, 0603 & 0805: 7" 2mm pitch punched paper
W2H
(1E ~ 2A:
TD: 0603, 0805, 1206 &1210: 7" 4mm pitch punched paper
W3A
10 ~ 1M)
TDD: 0603, 0805, 1206 &1210: 10" paper tape
2H
TE: 0805, 1206, 1210, 2010 & 2512: 7" plastic embossed
3A TED: 0805, 1206, 1210, 2010 & 2512: 10" plastic embossed
For further information on packaging, please refer to Appendix A
New W3A2
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 10/31/17
KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 13
% Rated Power
resistorsresistors
RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
applications and ratings
Rated
Resistance Range
Rated Maximum Maximum Operating
Part Power Terminal T.C.R.
Ambient Working Overload Temperature
-6
Designation Rating Part (x10 /K) G2% J5%
Temp. Voltage Voltage Range
Temp. E-24 E-24
200 100k - 1M 100k - 10M
-55C to
RK73B1F
20V
0.03W 250 10 - 91k 10 - 91k
+125C
(01005)
30V
0~+300 1 - 9.1 1 - 9.1
200 10 - 10M 10 - 10M
RK73B1H
25V 50V
0.05W
(0201)
1 - 9.1
400
RK73B1E
0.1W
200 1 - 10M 1 - 10M
50V
(0402)
100V
1.1k - 1M 1.1k - 10M
200
RK73B1J 0.1W
400 75V
11M - 22M
(0603)
200 1 - 1k 1 - 1k
0.125W
200 1 - 1M 1 - 1M
RK73B2A
0.25W 150V 200V
(0805) 70C
1.1M - 10M 1.1M - 10M
400
125C
200 1 - 5.6M 1 - 5.6M
RK73B2B
-55C to
0.25W
(1206)
+155C
6.2M - 10M 6.2M - 22M
400
10 - 5.6M 1 - 5.6M
200
RK73B2E
0.50W
200V 400V
(1210)
6.2M - 10M
400
200 10 - 5.6M 1 - 5.6M
RK73BW2H/2H
0.75W
(2010)
400 6.2M - 22M
200 10 - 5.6M 1 - 5.6M
RK73BW3A/3A
1.0W 200V 400V
(2512)
6.2M - 22M
400
200 10 - 5.6M 1 - 5.6M
RK73BW3A2
2.0W
95C 200V 400V
(2512)
400 6.2M - 22M
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
Performance Characteristics
Requirement R (%+0.1)
Parameter Limit Typical Test Method
Resistance Within specified tolerance 25C
T.C.R. Within specified T.C.R. +25C/-55C and +25C/+125C
1%: 1F Rated Voltage x 2.5 for 5 seconds
Overload (Short time) 2%
0.5%: Another (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds)
0.5%: 1F~W3A2
1%: 1F~W3A2 (10R1M)
Resistance to Soldering Heat (10R1M); 1%:
260C 5C, 10 seconds 1 second
3%: 1F~W3A2 (R<10, R>1M)
1F~W3A2 (R<10, R>1M)
1%: 1F 0.5%: 1F
Rapid Change of Temperature -55C (30 minutes), +125C (30 minutes), 100 cycles
0.5%: Another 0.3%: Another
0.75%: 1J, 2A, 2B
2%: 1J, 2A, 2B 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON,
Moisture Resistance 1.5%: 1F
3%: Another 0.5 hr OFF cycle
1%: Another
2%: 1J, 2A, 2B 0.75%: 1J, 2A, 2B
70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
Endurance at 70C
3%: Another 1%: Another
0.5%: 1F +125C, 1000 hours: 1F; +155C, 1000 hours: 1E, 1H,
High Temperature Exposure 1%
0.3%: Another 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 10/31/17
14 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com
NEW