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Resistor TO220 30W 1% 0,47R
Varenummer:101-532
Varekode:LTO030FR4700FTE3
Vægt:2.2g
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Inkl. moms:
Kr. 66,18
v/10Kr. 55,44
v/25Kr. 51,15
LTO030FR4700FTE3LTO030FR4700FTE3 DimensionsLTO030FR4700FTE3 Derating
Produkt: Modstand
Modstand: 0,47Ω
Tolerance: ±1%
Effekt, max.: 30W
Komponenthus: TO220
Features
• 30W at 25°C and heatsink mounted (optional)
• Low inductance
• Compact size
• Easy to mount due to TO220-package
• direct ceramic mounting design (no metal tab)
Technical Specifications
    Resistance Value: Row E12 Tolerance: ±1% Power Rating Without Heatsink (25°C): 2,25W With Heatsink1) (25°C): 30W Operating Voltage, Max.: 250V Dielectric Strength: 1500Vrms Temperature Coefficient ³0,1W: ±250ppm/°C ³0,5W: ±150ppm/°C Thermal Resistance: 4,2K/W Temperature Range: -55...+150°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: 10W
1) P = DT / [RTH(j-c) + RTH (c-a)]
2) DT = 155°C - 30°C = 125K
3) [RTH(j-c) + RTH (c-a)] = DT / P = 125K / 10W = 12,5K/W4) RTH (c-a) = 12,5K/W - 4,2K/W = 8,3K/W
Manufacturer
Vishay/Sfernice
http://www.vishay.com
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