Varenummer: | 126-627 |
Varekode: | LTO030FR0100FTE3 |
Produkt: | Modstand |
Modstand: | 0,01Ω |
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) |
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Technical Specifications |
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Tolerance: | ±1% |
Power Rating | |
Without Heatsink (25°C): | 2,25W |
With Heatsink1) (25°C): | 30W |
Operating Voltage, Max.: | 250V |
Dielectric Strength: | 1500Vrms |
Temperature Coefficient | |
to incl. 0,1Ohm: | ±250ppm/°C |
0,1...0,5Ohm: | ±150ppm/°C |
Thermal Resistance: | 4,2°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. | |
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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 |
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