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16
RW1/RW2 Series
Surface Mount Four Terminal Current Sense
TCR max.
±50 ppm/°C
Rated Ambient Temp.
+70°C
Operating Temp. Range
-55°C - +125°C
Power Rating Resistance Range Resistance Dielectric Withstanding TCR
Type (watts) E-12 (mΩ) Tolerance Voltage (max. ppm/°C) Qty./Reel
RW1S0CK 1 5mΩ - 50mΩ 1% 500V ±50 1000
RW2S0DK 2 5mΩ - 50mΩ 1% 500V ±50 1000
Derating
100
Percent Rated Power
Ambient Temperature, °C
60
20
0
0-20 125
80
40
-55 70-40 60 80 1401004020
125
Temperature Rise (ϒC)
Percent Rated Power
75
25
0
100
50
06080 1004020
RW2S0DK
RW1S0CK
Surface Temperature Rise
Input Detecting
Circuit
Output
R
W
Voltage Te rminal
(KELVIN terminal)
Current Te rminal
Typical Schematic
Parameter
Requirement ∆R
Limit Typical
Test Method
Resistance
Within
regulated
tolerance
— 25°C
T.C.R.
Within
specified
T.C.R.
— +25°C/-55°C and +25°C/+125°C
Overload
±1.0% ±1.0% Rated power x 5 for 5 seconds
Resistance to Solder
Heat
±1.0% ±1.0% 260°C ± 5°C, 10 seconds ±1 second
Rapid Change of
Temperature
±1.0% ±0.5% -55°C (30 minutes), +125°C (30 minutes), 500 cycles
Moisture Resistance
±2.0% ±0.5% 40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON,
0.5 hr OFF cycle
Endurance at 70°C
±1.0% ±0.5% 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
Low Temperature
Operation
±0.5% ±0.25% -55°C, 1 hour
High Temperature
Exposure
±0.5% ±0.25% +125°C, 100 hours
FEATURES
• Extremely low resistance and high precision tolerance
• Low T.C.R. achieved (±50ppm/°C)
• Flameproof UL94-V-0
• Marking: Black body color with white marking
CHARACTERISTICS
PERFORMANCE DATA
SERIES SPECIFICATIONS
