WK73S2BRTTD1R62F データシートの表示（PDF） - KOA Speer Electronics, Inc.
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WK73S2BRTTD1R62F Datasheet PDF : 4 Pages
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RK73-RT
flat chip resistors (anti-sulfuration)
applications and ratings (continued)
RK73Z
Part
Designation
Rated
Ambient
Temperature
Rated
Terminal Part
Temperature
Resistance
1H
1E
1J
2A
2B
2E
W2H
W3A
+70°C
+125°C
100mΩ max.
50mΩ max.
Current
Rating
0.5A
1A
2A
Maximum
Surge
Current
1A
2A
5A
10A
Operating
Temperature
Range
-55°C to +155°C
environmental applications
Performance Characteristics
Parameter
Resistance
RK73H, RK73B Requirement ∆ R
±(%+0.1Ω)
Limit
Typical
Within specified
tolerance
—
RK73Z Requirement
Limit
Typical
R≤100mΩ: 1H
R≤90mΩ: 1H
R≤50mΩ: All others R≤40mΩ: All others
25°C
Test Method
T.C.R.
Within specified
T.C.R.
—
—
—
+25°C/-55°C and +25°C/+125°C
Overload (Short time)
±2%
±1%: 1F
±0.8%: All others
R≤100mΩ: 1H
R≤90mΩ: 1H
R≤50mΩ: All others R≤40mΩ: All others
RK73B, RK73H Rated Voltage x 2.5 for 5 seconds
(1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds)
RK73Z: Max. overload current for 5 seconds
Resistance to
Solder Heat
±1%:10Ω≤R≤1MΩ
±3%: R<10Ω,
R>1MΩ
±1%: R<10Ω,
R>1MΩ
±0.5%: All others
R≤100mΩ: 1H
R≤90mΩ: 1H
R≤50mΩ: All others R≤40mΩ: All others
260°C ± 5°C, 10 seconds ± 1 second
Rapid Change
of Temperature
±1%: 1F
±0.5%: All others
±0.5%: 1F
±0.3%: All others
R≤100mΩ: 1H
R≤90mΩ: 1H
R≤50mΩ: All others R≤40mΩ: All others
-55°C (30 minutes), +125°C (30 minutes), 100 cycles
Moisture Resistance
±2%: 1J, 2A, 2B
±3%: All others
±0.75%: 1J, 2A, 2B
±1.5%: 1F
±1%: All others
R≤150mΩ: 1H
R≤100mΩ: 1H
R≤100mΩ: All others R≤50mΩ: All others
40°C ± 2°C, 90%-95% RH, 1000 hours,
1.5 hr ON, 0.5 hr OFF cycle
Endurance at 70°C
High Temperature
Exposure
Sulfuration Test
±2%: 1J, 2A, 2B
±3%: All others
±1%
±5%
±0.75%: 1J, 2A, 2B
±1%: All others
±0.5%
—
R≤150mΩ: 1H
R≤100mΩ: 1H
R≤100mΩ: All others R≤50mΩ: All others
R≤150mΩ: 1H
R≤100mΩ: 1H
R≤100mΩ: All others R≤50mΩ: All others
R≤150mΩ: 1H
R≤100mΩ: All others
—
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
+125°C, 1000 hours: 1F; +155°C, 1000 hours:
1H, 1E, 1J, 2A, 2B, 2E, W2H, W3A
Soaked in industrial oil with 3.5% sulfur
concentration 105°C ± 3°C, 500 hours
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/03/17
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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