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2017年10月17日 · Ta是指电源最佳工作温度极限值，Tc表标整个驱动温度最高的地方。 比如标示Ta=50度，意思是工作在50度环境以内，寿命是最高的，每超过10度，寿命降低一倍。

2023年4月3日 · 有UL认证的LED驱动Ta、Tc定义： Ta：表示LED驱动能宣称的最大工作环境温度； Tc：表示LED驱动宣称的一个壳温点，LED驱动在终端工作时，这个壳温点超过Tc温度时就有火灾的风险。 Ta和Tc到底有何逻辑关系呢： 1、Ta是指驱动电源的实际工作环境温度；Tc只是外壳 …

Ta is the best working temperature limit value of the power supply, Tc table marks the highest temperature of the entire drive. For example, the label Ta = 50 degrees, meaning that work within the 50-degree environment, life is the highest, every more than 10 degrees, life is reduced by two.

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Ta : Actual ambient temperature 实际环境温度 Tc : Surface Temperature of body 物体的表面温度

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2011年4月19日 · Ta : Actual ambient temperature 实际环境温度 Tc : Surface Temperature of body 物体的表面温度 这个和缩写无关，是一个专用的表示符号而已