features
•High precision resistor with T.C.R. of
±50 ppm/°C and tolerance of ±0.5% or 1%
•RuO2thick film resistor element
•Marking: Four-digit, white on black (1E) and dark blue
protective coat (1J, 2A, 2B)
1J-3 marking for E-24
No marking for E-96
Black protective coat on 1H and 1E with no marking
•Products with lead-free terminations meet EU RoHS
requirements. Pb located in glass material, electrode
and resistor element is exempt per Annex 1, exemption
5 of EU directive 2005/95/EC
12 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. 11/05/09
RK73G
thick film 0.5%, 1% tolerance, 50ppm/°C
chip resistor
dimensions and construction
Protective
Coating Inner
Electrode
Resistive
Film
Ceramic
Substrate
Solder
Plating
Ni
Plating
Lcc
W
t
d
Derating Curve
% Rated Power
100
80
60
40
20
-60 -40 -20 0 406080100140
70
20
Ambient Temperature
(°C)
0
-55
120
155125
1H 1E, 1J, 2A, 2B
ordering information
D: ±0.5%
F: ±1%
T: Sn
(1H, 1E, 1J,
2A, 2B)
L: SnPb
(1E, 1J, 2A, 2B)
3 significant
figures +
1 multiplier
“R” indicates
decimal on
value <100Ω
1H
1E
1J
2A
2B
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)
TPL: 0402 only: 2mm pitch punch paper
TP: 0402, 0603, 0805: 7" 2mm pitch
punch paper
TD: 0603, 0805, 1206: 7" 4mm pitch
punched paper
TDD: 0603, 0805, 1206: 10" paper tape
TE: 0805, 1206: 7" punched plastic
TED: 0805, 1206: 10" punched plastic
For further information on packaging,
please refer to Appendix A
RK73G
Type Size Nominal
Resistance Tolerance
Termination
Material Packaging
New Part # 1J TD 1003 FT
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)
.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)
.009±.012
(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)
EU
resistors
RK73G
thick film 0.5%, 1% tolerance, 50ppm/°C
chip resistor
Absolute
Maximum
Working
Voltage
Resistance
Range
E-24, E-96
(F±1%)
Resistance
Range
E-24, E-96
(D±0.5%)
Part
Designation*
Absolute
Maximum
Overload
Voltage
Operating
Temperature
Range
Power
Rating
@ 70°C
T.C.R.
(ppm/°C)
Max.
applications and ratings
RK73G1E
(0402)
RK73G1J
(0603)
RK73G2A
(0805)
RK73G2B
(1206)
1/16W (.063W)
1/10W (.10W)
1/8W (.125W)
1/4W (.25W)
±50
10Ω- 1MΩ
10Ω- 1MΩ
50V
150V
200V
100V
75V 150V
200V
400V
-55°C to +155°C
-55°C to +125°C
13
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. 10/30/08
* Parentheses indicate EIA package size codes.
** RK73G1H available in E-24 decade values only
For Surface Temperature Rise Graph see Environmental Applications. Additional environmental applications can also be found at www.koaspeer.com
10Ω- 1MΩ
RK73G1H
(0201) 1/10W (.05W) 100Ω- 1MΩ** 100Ω- 1MΩ** 25V 50V
Performance Characteristics
Parameter
Requirement ∆R
Limit Typical Test Method
Resistance
T.C.R.
25°C
1H: +25°C/+125°C, 1E, 1J, 2A, 2B: +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% ±0.6%
Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second
±1% ±1%: 1H, ±0.4%:
1E, 1J, 2A, 2B
Rapid Change of Temperature -55°C (30 minutes), +125°C (30 minutes), 100 cycles
±0.5% ±0.3%
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%: 1H, 1E
±0.6%: 1J, 2A,
2B; ±1%: 1H, 1E
Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
±2%: 1J, 2A, 2B
±3%: 1H, 1E
±0.6%: 1J, 2A,
2B; ±1%: 1H, 1E
High Temperature Exposure +125°C, 1000 hours: 1H
+155°C, 1000 hours: 1E, 1J, 2A, 2B
±1% ±0.6%
environmental applications
resistors
