surge current flat chip resistors
(anti-sulfuration)
SG73-RT
EU
% Rated Power
resistors
features
•
Excellent anti-sulfuration characteristic
due to using high sulfuration-proof inner
top electrode material
•
Superior to RK73 series chip resistors
in pulse withstanding voltage
•
Suitable for both flow and reflow soldering
•
Marking: White three-digit on wine red protective coat
•
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
dimensions and construction
c
L
c
Type
(Inch Size Code)
L
Dimensions
inches
(mm)
W
c
d
t
W
Solder
Plating
t
d
Protective
Coating
Resistive Inner
Film
Electrode
Ni
Plating
1J
(0603)
2A
(0805)
2B
(1206)
2E
(1210)
W2H
(2010)
W3A
(2512)
.063±.008 .031±.004 .012±.004 .012±.004 .018±.004
(1.6±0.2)
(0.8±0.1)
(0.3±0.1)
(0.3±0.1) (0.45±0.1)
.079±.008 .049±.004 .016±.008
(2.0±0.2) (1.25±0.1) (0.4±0.2)
.126±.008
(3.2±0.2)
.063±.008
(1.6±0.2)
.102±.008
(2.6±0.2)
.197±.008 .098±.008
(5.0±0.2)
(2.5±0.2)
.248±.008 .122±.008
(6.3±0.2)
(3.1±0.2)
.012
(0.3
.016
(0.4
.02±.012
(0.5±0.3)
.026±.006
(0.65±0.15)
+.008
-.004
+0.2
-0.1
)
+.008
-.004
+0.2
-0.1
)
.02±.004
(0.5±0.1)
Ceramic
Substrate
Derating Curve
100
80
60
40
20
0
-60 -40 -20
-55
0
80 100 120 140 160
70
155
Ambient Temperature
(°C)
20
40
60
.024±.004
(0.6±0.1)
ordering information
New Part #
SG73
Type
SG73
2A
Power
Rating
1J
2A
2B
2E
W2H
W3A
RT
Termination
Material
RT: Sn
Anti-Sulfur
TD
Packaging
TP: 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" punched plastic
TED: 0805, 1206, 1210, 2010 & 2512:
10" punched plastic
For further information on packaging,
please refer to Appendix A
103
Nominal
Resistance
±10%, ±20%:
2 significant
figures + 1
multiplier “R”
indicates decimal
on value <10Ω
K
Resistance
Tolerance
K: ±10%
M:±20%
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/06/09
30
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
surge current flat chip resistors
(anti-sulfuration)
applications and ratings
Part
Designation
1J
(0603)
2A
(0805)
2B
(1206)
2E
(1210)
W2H
(2010)
W3A
(2512)
Power
Rating
0.1W
0.125W
0.25W
0.33W
0.75W
1W
T.C.R.
(ppm/°C)
Max.
±400
±200
±400
±200
±400
±200
±400
±200
±400
±200
±400
±200
Resistance Range
(E-12)
(E-12)
(K±10%)
(M±20%)
1Ω - 8.2Ω
10Ω - 1MΩ
1Ω - 8.2Ω
10Ω - 1MΩ
1Ω - 8.2Ω
10Ω - 1MΩ
1Ω - 8.2Ω
10Ω - 1MΩ
1Ω - 8.2Ω
10Ω - 1MΩ
1Ω - 8.2Ω
10Ω - 1MΩ
Maximum
Working
Voltage
50V
150V
Maximum
Overload
Voltage
100V
200V
-55°C
to
+155°C
Rated
Ambient
Temperature
Operating
Temperature
Range
+70°C
200V
400V
environmental applications
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Solder Heat
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
High Temperature Exposure
Sulfuration Test
Requirement
∆
R
Limit
Typical
Within specified
—
tolerance
Within specified
—
T.C.R.
±2%
±1%
±0.5%
±3%
±3%
±1%
—
±0.5%
±0.75%
±0.3%
±0.75%
±0.75%
±0.5%
±0.5%
Test Method
25°C
+25°C/-55°C and +25°C/+125°C
Rated Voltage x 2.5 for 5 seconds
260°C ± 5°C, 10 seconds ± 1 second
-55°C (30 minutes), +125°C (30 minutes), 100 cycles
40°C ± 2°C, 90%~95%RH, 1000 hours; 1.5 hr ON, 0.5 hr OFF cycle
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
+155°C, 1000 hours
H
2
S 1000ppm, +25°C, 90%Rh, 720 hours
Additional environmental applications can also be found at 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.
11/07/08
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
31
resistors
SG73-RT
