Protective
Coating Inner
Electrode
Resistive
Film
Ceramic
Substrate
Solder
Plating
Ni
Plating
Lcc
W
t
d
8
RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
features
Marking: No marking on 1F, 1H & 1E
sizes, black protective coat.
White, three-digit marking on
1J ~ 3A on black protective coat.
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.
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. 4/27/11
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
.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)
.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)
.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)
2A
(0805)
2B
(1206)
2H
(2010)
3A
(2512)
(Inch Size Code) Wc d t
Dimensions inches (mm)
ordering information
G:±2%
J: ±5%
T: Sn
(1F ~ 3A)
Contact factory
for below options:
L: SnPb
(1E ~ 3A)
G: Au
(1E ~ 2A:
10Ω~ 1MΩ)
X: Bondable
(1J ~ 2E:
10Ω~ 1MΩ)
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value <10Ω
1F
1H
1E
1J
2A
2B
2E
W2H
W3A
2H
3A
TX: 01005 only: 4mm width - 1mm pitch plastic embossed
TBL:01005 only: 2mm pitch pressed paper
TA: 0201 only: 1mm pitch pressed paper
TC: 0201 only: 7" 2mm pitch pressed paper
(TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel)
TCD: 0201 only: 10" 2mm pitch pressed paper
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
TDD: 0603, 0805, 1206 &1210: 10" paper tape
TE: 0805, 1206, 1210, 2010 & 2512: 7" plastic embossed
TED: 0805, 1206, 1210, 2010 & 2512: 10" plastic embossed
For further information on packaging, please refer
to Appendix A
RK73B
Type Size Nominal
Resistance Tolerance
Termination
Material Packaging
New Part # 2B TD 102 JT
2E
(1210)
Derating Curve
100
80
60
40
20
20 40 60 80 100120140160180
12570
Ambient Temp erature
(°C)
1F, 1H 1E, 1J, 2A, 2B, 2E, 2H,
00155
3A, W2H, W3A
1F
(01005) .015±.001
(0.4±0.02) .007±.001
(0.2±0.02) .004±.001
(0.10±0.03) .004±.001
(0.11±0.03) .005±.001
(0.13±0.02)
W2H
(2010)
W3A
(2512)
EU
.026±.006
(0.65±0.15)
.026±.006
(0.65±0.15)
resistors
* Parentheses indicate EIA package size codes.
RK73B
general purpose 2%, 5% tolerance
thick film chip resistor
9
KOA Speer Electronics, Inc. 199 Bolivar Drive • Bradford, PA 16701 • USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com
* See Appendix D for available decade values. ** Please contact KOA Speer for the Max. working voltage and the Max. overload voltage.
Absolute
Maximum
Working
Voltage
Resistance
Range
E-24*
(J±5%)
Resistance
Range
E-24**
(G±2%)
Part
Designation
Absolute
Maximum
Overload
Voltage
Operating
Temperature
Range
Power
Rating
@ 70°C
T.C.R.
(ppm/°C)
Max.
applications and ratings
RK73B1H
(0201)
RK73B1E
(0402)
1/20W (.05W)
1/16W (.063W)
RK73B1J
(0603) 1/10W (.10W)
RK73B2A
(0805) 1/8W (.125W)
RK73B2B
(1206)
RK73B2E
(1210)
1/4W (.25W)
±200 10Ω - 10MΩ10Ω - 10MΩ25V 50V
50V 100V
150V 200V
200V 400V
-55°C to +125°C
-55°C to +155°C
±200 1Ω - 10MΩ
±400
1Ω - 10MΩ
RK73BW2H/2H
(2010)
RK73BW3A/3A
(2512)
3/4W (.75W)
1W
±200 1Ω - 10MΩ1Ω - 10MΩ
11MΩ - 22MΩ
1Ω - 1MΩ
1.1MΩ - 10MΩ
1Ω - 5.6MΩ
6.2MΩ - 22MΩ
6.2MΩ - 22MΩ
6.2MΩ - 22MΩ
1Ω - 1MΩ
1.1MΩ - 10MΩ
1Ω - 5.6MΩ
10Ω - 1KΩ
1.1KΩ - 5.6MΩ
10Ω - 5.6MΩ1Ω - 5.6MΩ
1Ω - 5.6MΩ10Ω - 5.6MΩ
1Ω - 1KΩ
1.1KΩ - 5.6MΩ
6.2MΩ - 10MΩ
6.2MΩ - 10MΩ
±200
±400
±200
±200
±400
1/2W (.50W)
1/3W (.33W)
1/3W (.33W)
±400
±200
±400
±200
±400
±400 1Ω - 9.1Ω
±250 6.8KΩ - 1MΩ6.8KΩ - 1MΩ
1/32W (.03W)
RK73B1F
(01005) 15V 30V
400V
(500V**)
200V
(500V**)
±300 10Ω - 6.2KΩ10Ω - 6.2KΩ
Performance Characteristics
Parameter
Requirement R (%+0.05Ω)
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
(2B: 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~W3A (10ΩR1MΩ)
±3%: 1H~W3A (R<10Ω, R>1MΩ)
±0.75%: 1F, 1H (10Ω≤R1MΩ);
±1%: 1J ~W3A (R<10Ω,
R>1MΩ); ±0.5%: Another
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, 1H
+155°C, 1000 hours: 1E, 1J, 2A, 2B, 2E, W2H, W3A
±1% ±0.5%: 1F
±0.3%: Another
environmental applications
resistors
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 4/27/11