Derating Curve
% Rated Power
100
80
60
40
20
-60 -40 0 40 60 80 100 160
70
20
Ambie nt Te mper atur e
(°C)
0
-55 120 155
-20 140
1J/0.2W
2A/0.25W
2B/0.33W
% Rated Power
100
80
60
40
20
-60 -40 80 100 16020
(°C)
0
-55 120 155
-20 140
125
04060
Terminal Part Temperature
1J/0.2W
2A/0.25W
2B/0.33W
For resistors operated at an ambient temperature
of 70°C or above, a power rating shall be derated
in accordance with the 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 derating curve. Please refer to “Introduction of the derating curve based on the terminal
part temperature” in the beginning of our catalog before use. *1 If you want to use the rated power of *1, please use the
derating curve based on the terminal part temperature on the right hand side.
% Rated Power
100
80
60
40
20
-60 -40 80 100 16020
(°C)
0
-55 120 155
-20 1400 40 60
Terminal Part Temperature
2A/0.5W (100°C)
2B/0.5W (120°C)
125
1J/0.33W (125°C)
SG73G
features
SG73G
endured pulse power flat chip resistors
(ultra precision grade)
dimensions and construction
Protective
Coating Inner
Electrode
Resistive
Film
Ceramic
Substrate
Solder
Plating
Ni
Plating
Lcc
W
t
d
C: ±0.25%
D: ±0.5%
T: Sn D: 3 significant figures
+ 1 multiplier “R” indicates
decimal on
value <100Ω
1J: 0.33W
2A: 0.5W
2B: 0.5W
TP: 2mm pitch punch paper
TD: 4mm pitch punched paper
TE: 4mm pitch embossed plastic
For further information on packaging,
please refer to Appendix A
SG73G
Type Power
Rating Nominal
Resistance Tolerance
Termination
Material Packaging
2A TD 1002 DT
EU
• Superior to RK73 series chip resistors in
pulse withstanding voltage and high power
• High precision resistor with T.C.R. ±50x10-6/K
and tolerance ±0.25%, ±0.5%
• Suitable for both reflow and flow solderings
• 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
Type
L
.024±.004
(0.6±0.1)
(Inch Size Code) Wc d t
Dimensions inches (mm)
.016 +.008
-.004
(0.4 +0.2)
-0.1
.063±.008
(1.6±0.2)
SG73G2B
(1206) .126±.008
(3.2±0.2)
.016 +.008
-.004
(0.4 +0.2)
-0.1
.049±.004
(1.25±0.1)
.079±.008
(2.0±0.2)
.031±.004
(0.8±0.1)
.063±.008
(1.6±0.2)
SG73G1J
(0603) .018±.004
(0.45±0.1)
.012±.004
(0.3±0.1) .012±.004
(0.3±0.1)
.012 +.008
-.004
(0.3 +0.2)
-0.1
.02±.004
(0.5±0.1)
.012 +.008
-.004
(0.3 +0.2)
-0.1
SG73G2A
(0805)
ordering information
46 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. 10/25/18
resistors
SG73G
endured pulse power flat chip resistors
(ultra precision grade)
applications and ratings
Additional environmental applications can also be found at www.koaspeer.com
Absolute
Maximum
Working
Voltage
Resistance
Range (Ω)
C±0.25%, D±0.5%
E-24/E-96
SG73G2A
(0805)
±50
Part
Designation
Absolute
Maximum
Overload
Voltage
Operating
Temp.
Range
Power
Rating
@ 70°C
T.C.R.
(ppm/°C)
Max.
200V 400V
-55°C
to
+155°C
150V 200V
SG73G1J
(0603) ±50
0.33W*1
0.2W
0.5W*1
0.25W
200V 400V
Rated
Terminal
Part Temp.
Rated
Ambient
Temp.
125°C
125°C
70°C
––
125°C
100°C
70°C
––
125°C
120°C
70°C
––
SG73G2B
(1206)
0.5W*1
0.33W
±50
Parentheses indicate EIA package size codes. Rated voltage = √Power rating x resistance value or max. working voltage, whichever is lower. If any questions should
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 on the terminal part temperature” in the beginning of the catalog. *1 If you want to use the rated
power of *1, please use the derating curve based on the terminal part temperature on the previous page.
environmental applications
Performance Characteristics
Parameter
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) Rated Voltage x 2.5 for 5 seconds (2A: 0.5W rated power x 2 for 5 seconds)
±2% ±0.5%
Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second
±1% ±0.75%
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% ±0.75%
Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
±2% ±0.75%
High Temperature Exposure +155°C, 1000 hours
±1% ±0.3%
10 - 1M
10 - 1M
10 - 1M
One-Pulse Limiting Electric Power
One-Pulse Limiting Electric Power
1000
.1 100
1
Pulse Duration
(ms)
10001.001
100
10
10.01
2B
2A
1J
0.1
The maximum applicable voltage is equal to the max.
overload voltage. Please contact factory for resistance
characteristics of continuous applied pulse.
47
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. 10/25/17
resistors
