對于電子元器件而言,在相對理想的工作溫度范圍內(nèi)會延長其使用壽命,那么在使用瓷片電容時,適合的溫度范圍是多少?超過會怎樣?
For electronic components, the service life will be prolonged in a relatively ideal working temperature range. What is the suitable temperature range for ceramic capacitor? What happens if we exceed it?
瓷片電容是在線路板中的一種藍色圓片形電容,精瑩透亮,產(chǎn)品上印字有容量和電壓。
Ceramic capacitor is a kind of blue round chip capacitor in circuit board. It is crystal clear and transparent. There are capacity and voltage printed on the product.
瓷片電容又分高壓瓷片電容及低壓瓷片電容。
The ceramic capacitor is divided into high-voltage ceramic capacitor and low-voltage ceramic capacitor.
選購瓷片電容的時候,從廠家提供的規(guī)格書可以看到很多的參數(shù),比如容量;電壓;誤差;耐壓;腳距;腳長等,那么工作溫度在哪?瓷片電容的工作溫度范圍是多少呢
When purchasing ceramic capacitor, many parameters can be seen from the specification provided by the manufacturer, such as capacity; voltage; error; withstand voltage; foot distance; foot length, etc. What is the working temperature? What is the working temperature range of ceramic capacitor
瓷片電容中,有分三種特性,Y5P;Y5U;Y5V,特性不同,對應(yīng)的工作溫度也會不同。詳見下圖。
There are three kinds of characteristics in ceramic capacitor: Y5P; Y5U; Y5V. Different characteristics will lead to different working temperature. See the figure below.
瓷片電容用Y5U及Y5P特性的,變化率為 22%-65% 。用Y5V特性的,變化率為 30%-80% 。-25℃ ~ 85℃ 都是瓷片電容的工作溫度。意思就是瓷片電容可以在兩種極端的溫度下工作。不受影響。
The change rate of Y5U and Y5P is 22% - 65%. With Y5V characteristic, the change rate is 30% - 80%. -25 ℃ ~ 85 ℃ are the working temperature of ceramic capacitor. This means that ceramic capacitors can work at two extreme temperatures. Not affected.
超過瓷片電容的工作溫度范圍使用,就是超過-40℃~+85℃這個溫度會怎樣呢?如果超過,使用壽命會縮短。
If the temperature exceeds the working temperature range of ceramic capacitor, that is, it is over - 40 ℃ ~ + 85 ℃. What will happen to this temperature? If exceeded, the service life will be shortened.
工作溫度過高或過低時,如果瓷片電容容量下降過多,就會影響性能,造成失效。電容器通常并不會壞,而是出現(xiàn)失效狀況,沒法工作。建議是在相對常溫環(huán)境下使用。
When the working temperature is too high or too low, if the capacitance of the ceramic chip drops too much, it will affect the performance and cause failure. Capacitors are usually not broken, but fail to work. It is recommended to be used at relatively normal temperature.