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Resistor TO220 20W 5% 1R

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Inkl. moms
Kr. 72,50
v/10Kr. 68,75
v/25Kr. 62,50
v/100Kr. 50,00
RTO20FE001 Resistor TO220 20W 5% 1R Resistor 1R 20W 5%RTO20FE001 Resistor TO220 20W 5% 1R DimensionsRTO20FE001 Resistor TO220 20W 5% 1R Derating
Modstand: 1Ω
Tolerance: ±5%
Effekt, max.: 20W
Komponenthus: TO220

Gruppe: C1481
VISHAY Thick Film Resistors
Series: RTO20F
Power: 20W
Tolerance: 5%
Housing: TO220




• 20W at 25°C and heatsink mounted (optional)
• Low inductance
• Compact size
• Easy to mount due to TO220-package


Technical Specifications


Tolerance: ±5%
Power Rating
Without Heatsink (25°C): 2W
With Heatsink1) (25°C): 20W
Operating Voltage, Max.: 250V
Dielectric Strength: 2000Vrms
Temperature Coefficient
to incl. 0,1Ohm: ±250ppm/°C
0,1...0,5Ohm: ±150ppm/°C
Thermal Resistance: 6,5°C/W
Temperature Range: -55...+155°C
Climatic Category: 55/155/56
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

Ambient temperature 25°C, Power Rating: 10W
1) P = DT / [RTH(j-c) + RTH (c-a)]
2) DT = 155°C - 25°C = 130K
3) [RTH(j-c) + RTH (c-a)] = DT / P = 130K / 10W = 13K/W4) RTH (c-a) = 13K/W - 6,5K/W = 6,5K/W

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