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Resistor TO220 50W 5% 4,7R

Varenummer:84-257
Varekode:RTO50FE004,7
Vægt:3.2g
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Internet-pris
Inkl. moms
Kr. 87,50
v/10Kr. 75,00
v/25Kr. 62,50
v/100Kr. 50,00

RTO50FE004,7 Resistor TO220 50W 5% 4,7RRTO50FE004,7 Resistor TO220 50W 5% 4,7RRTO50FE004,7 Resistor TO220 50W 5% 4,7R DimensionsRTO50FE004,7 Resistor TO220 50W 5% 4,7R DeratingRTO50FE004,7 Resistor TO220 50W 5% 4,7R DeratingRTO50FE004,7 Resistor TO220 50W 5% 4,7R RTO50F_RTO50FE004,7 Resistor TO220 50W 5% 4,7R Dimensions
Modstand: 4,7Ω
Tolerance: ±5%
Effekt, max.: 50W
Komponenthus: TO220
Features
• 50W at 25°C heatsink mounted (optional)
• Low inductance
• Compact size
• Easy to mount due to TO220-package
Technical Specifications
Resistance Value:
Row E12
Tolerance:
±5%
Power Rating
Without Heatsink (25°C):
2,25W
With Heatsink1) (25°C):
50W
Operating Voltage, Max.:
300V
Dielectric Strength:
2000Vrms
Temperature Coefficient
0,046W:
±300ppm/°C
0,1W:
±250ppm/°C
0,5W:
±150ppm/°C
Thermal Resistance:
2,6K/W
Temperature Range:
-55...+155°C
Climatic Category:
55/155/156
Derating:
See Curve
1) For calculation of heatsink please see values below Note
Calculation of heatsink
P = DT / [RTH(j-c) + RTH(c-a)]

P = Expressed in W
DT = Difference between maximum working temperature (155°C) and room temperature
RTH(j-c) = Thermal resistance of the component
RTH(c-a) = Thermal resistance of the heatsink and quality of fastening device

Example:
Ambient Temperature 30°C, Power Rating: 13W
1) P = DT / [RTH(j-c) + RTH (c-a)]
2) DT = 155°C - 30°C = 125 K
3) [RTH(j-c) + RTH (c-a)] = DT / P = 125K / 13W = 9,6K/W4) RTH (c-a) = 9,6K/W - 2,6K/W = 7K/W
Manufacturer
Vishay/Sfernice
http://www.vishay.com
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