50W 厚膜 TO-220 功率电阻器 - RTO 50 系列Vishay Sfernice RTO50 系列厚膜非感应电阻器，采用 TO-220 外壳 电阻器安装在散热片上时，允许 50W 的耗散 （散热片安装 25°C 时标称功率为 50 W） 装在散热器上 25°C 时的功耗： | 50 W ---|--- 在空气中 25°C 时的功耗： | 2.25 W 容差： | ±5% 温度系数： | ±150 ppm / °C（0R1 除外：±250 ppm / °C） 最大服务电压： | 300 V 热阻： | 2.6°C / W 工作温度： | –55 °C → +155 °C 外壳： | TO-220 AC ### 非电感 - 通孔封装
Because of the knowledge and experience in Thick Film technology, Vishay Sfernice has been able to develop a high power resistor in a TO 220 package called RTO 50. The special design of this component allows the dissipation of 50 W when mounted on a heatsink. The ohmic value is adjusted by sand trimming. This process does not generate hot spots as in laser trimming, which could lead to microcracks on each side of the curve. This process improves the reliability and the stability of the resistor and at the same time gives a good overload capability.
**Features**
* 50 W at 25°c Heatsink Mounted
* Adjusted By Sand Trimming
* Leaded or Surface Mount Versions
* High Power to Size Ratio
* Non Inductive Element