| Varenummer: | 84-267 | 
| Varekode: | RTO50FE680 | 
| Vægt: | 3.2g | 


| Modstand: | 680Ω | 
| 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 | 
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| Technical Specifications | 
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| 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: | 2,6°C/W | 
| Temperature Range: | -55...+155°C | 
| Climatic Category: | 55/155/156 | 
| Derating: | See Curve | 
| 1) For calculation of heatsink please see values below Note | |
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| Note | 
| • You will find suitable heatsinks at product group G9511. | 
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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: 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 | 
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| Terms of Delivery | 
| Minimum order quantity: 1 PKU = 2 pieces Form of delivery: original PKU, 50 pieces in a tube | 
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| Manufacturer | 
| Vishay/Sfernice  | 
| http://www.vishay.com | 
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