Datasheet

使用指南 Application Guidelines
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Index
溫度表現 Thermal Performance
使用時能量貯存單位上低內阻會使得低熱量產生。電子產品使用溫度越低，其工作時間越久。大多
數使用領域自然空氣對流都能提供足夠的冷卻環境。在惡劣環境中使用，還要求有最長的使用壽命
則需要添加一些空氣對流設備。
Low internal resistance of the energy storage units enables low heat generation within the units during use.
As with any electronic components, the cooler the operating environment the longer the service life. In most
applications, natural air convection should provide adequate cooling. In severe application requiring maximum
service life some forced airflow may be required.
針對耐熱來說，測量產品的Rth需在環境溫度 (–25˚C) 下進行并允許自然對流。數據表上的Rth值對
確定產品工作極限值是有用的。利用Rth值，可計算出任何電流和工作循環下的溫升。
The thermal resistance, Rth of the units have been experimentally determined assuming free convection at
ambient temperature (–25˚C). The Rth value provided on the data sheet is useful for determining the operating
limits for the units. Using the Rth value, a module temperature rise can be determined based upon any current
and duty cycle.
溫升可用以下公式計算：
∆T = Dc • Rth • l
2
• Resr
其中 Dc = 工作循環
Rth = 熱阻值 (˚C/W)
l = AC或DC電流 (A)
Resr = 等效串聯電阻，(Ohms) (使用直流電)
The temperature rise can be expressed by the following equation:
∆T = Dc • Rth • l
2
• Resr
where Dc = Duty Cycle
Rth = Thermal Resistance (˚C/W)
I = Current AC or DC (A)
Resr = Equivalent Series Resistance, (Ohms) (dc value used)
環境溫度加上溫升，∆T，應控制在最高工作溫度之下。如果使用冷卻方法，則產品可容許大電流工
作及增加循環壽命。
This temperature rise, ∆T, plus ambient temperature should remain below the specified maximum operating
temperature for the EDLC. If forced cooling methods are employed, it is possible to operate the units at higher
currents or duty cycles.