DONGGUAN CHANGJING ELECTRONICS CO.,LTD
铝 电 解 电 容 器 规 格 承 认 书
表1：承认项目 Type Dimensions
TABLE1 RATING&CHARACTERISTIC.
CONTENTS 产品系列表
SERIES
Case size Ø D*L (mm), RippleCURRENT [Ma rms] at 105℃ 120Hz NOTE:以上所提供的设计及特性参数谨供参考作用,任何修改不作预先通知.如果在使用上有疑问,请在采购前与我们联络,
以便提供技术上的协助!
LEAD FREE TYPE REFLOW SOLDERING CONDITION
无 铅 焊 料 产 品 的 回 流 焊 条 件
Recommended Conditions for Reflow Soldering 无铅焊料产品遵循的回流焊条件 （1） Preheat shall be made at 100℃~200℃ and for maximum 180 seconds. 100℃~200℃的预热时间不得超过180秒钟。
（2） Period that temperature at top of capacitor becomes more than 200℃and 230℃shall not
exceed t and t1 seconds, respectively.
电容器顶部温度高于200℃和230℃的时间，分别不得超过t和t1所限定的时间。
（3） Temperature at top of capacitor shall not exceed T(℃).
在回流焊接时，电容器顶部的最高温度不得超过T（℃）所限定的温度。
Temperature/Time profile 回流焊温度与时间曲线图
Temperature at Capacitors top(℃)
Peak temperature
t1 sec Max t sec Max
Preheat 180sec Max
Time (second)
Allowable Range of Peak Temperature 不同壳号的焊接温度及时间
Recommended Land Size 各种壳号的安装尺寸
(m m)
ALUMINUM ELECTROLYTIC CAPACITORS'LIFE
关于铝电解电容器的寿命
The life of non-solid aluminum electrolytic capacitors is mainly dependent on environmental conditions (e.g. ambient temperature, humidity etc.) and electrical factors(e.g. operating voltage, ripple current etc.).Generally, the wear-out mechanism of non-solid aluminum electrolytic capacitors is based on evaporation of electrolyte through the rubber seal. Consequently, the factor of temperature (ambient temperature and internal heating due to ripple current) is the most critical to electrolytic capacitor life. The effect of voltage on capacitor life is negligible, especially for low voltage electrolytic capacitors. The lifetime of non-solid aluminum electrolytic capacitors can be expressed as following equations:
非固体铝电解电容器的寿命主要依赖于使用环境条件(如环境温度,湿度等)和电负荷情况(如工作电压,纹波电流等)。通常而言,非固体铝电解电容器的失效机理被认为是电解液通过胶塞逐渐挥发导致的。因此,温度因素(环境温度及由于纹波电流而引起的内热)对电解电容器寿命有重大影响。相反,电压对电容器寿命的影响可以忽略，尤其对于低压电解电容器而言更是如此。非固体铝电解电容器的寿命可以用下列公式估算: Le=Lo·Kt·Kr Where 这里
Le expected life at operating temperature Te (h) 在工作温度Te℃下的预期寿命(h)
Lo specified life at maximum operating temperature To (h) 在最大工作温度To℃下的保证寿命(h)
Kt ambient temperature acceleration term 环境温度影响因子
Kr ripple current acceleration term 纹波电流影响因子
(To-Te)/10
Kt= Lo·A Where 这里
To maximum rated operating temperature(℃)
最大额定工作温度(℃)
Te actual ambient temperature(℃) 实际环境使用温度(℃)
A acceleration coefficient (For the range 35℃ to the maximum operating temperature, A≈
2)
加速系数(对于从35℃到最高工作温度的范围, A≈2)
Kr=2
Where 这里
△T an increase in core temperature by internal heating due to ripple current(℃)
由于纹波电流引起的内热造成电容器芯子的温升(℃)
(△T=core temperature-ambient temperature 芯子湿度-环境湿度)
(-△T/5)
△T can be estimated as follows △T可用以下公式估算:
△T= (i2·R)(β·S)
Where 这里
i ripple current (A rms)
通过电容器的纹波电流(A rms)
R equivalent series resistance of the capacitor(Ω) 电容器的等效串联电阻(Ω)
2
β heat radiation coefficient(W/℃·cm)
2
铝壳的热辐射系数(W/℃·cm)
2
S surface area of the capacitor (cm)
2
电容器的表面积(cm)
The expected life of the capacitor at lower temperature neglect of ripple current effect is shown in the following figure.
当忽略纹波电流影响时,电容器在较低温度下的预期寿命可参照下图.
Quick Reference Guide of the Expected Life 预期寿命快速参考图
Capacitor ambient temperature
Example: Where a 2000hrs/105℃ guaranteed product is used continuously at 60℃, it can be expected to
have a life of 5 years.
例 如: 对于105℃ 2000小时的产品,如果在60℃环境中连续使用,它的预期寿命约5年。
DONGGUAN CHANGJING ELECTRONICS CO.,LTD
铝 电 解 电 容 器 规 格 承 认 书
表1：承认项目 Type Dimensions
TABLE1 RATING&CHARACTERISTIC.
CONTENTS 产品系列表
SERIES
Case size Ø D*L (mm), RippleCURRENT [Ma rms] at 105℃ 120Hz NOTE:以上所提供的设计及特性参数谨供参考作用,任何修改不作预先通知.如果在使用上有疑问,请在采购前与我们联络,
以便提供技术上的协助!
LEAD FREE TYPE REFLOW SOLDERING CONDITION
无 铅 焊 料 产 品 的 回 流 焊 条 件
Recommended Conditions for Reflow Soldering 无铅焊料产品遵循的回流焊条件 （1） Preheat shall be made at 100℃~200℃ and for maximum 180 seconds. 100℃~200℃的预热时间不得超过180秒钟。
（2） Period that temperature at top of capacitor becomes more than 200℃and 230℃shall not
exceed t and t1 seconds, respectively.
电容器顶部温度高于200℃和230℃的时间，分别不得超过t和t1所限定的时间。
（3） Temperature at top of capacitor shall not exceed T(℃).
在回流焊接时，电容器顶部的最高温度不得超过T（℃）所限定的温度。
Temperature/Time profile 回流焊温度与时间曲线图
Temperature at Capacitors top(℃)
Peak temperature
t1 sec Max t sec Max
Preheat 180sec Max
Time (second)
Allowable Range of Peak Temperature 不同壳号的焊接温度及时间
Recommended Land Size 各种壳号的安装尺寸
(m m)
ALUMINUM ELECTROLYTIC CAPACITORS'LIFE
关于铝电解电容器的寿命
The life of non-solid aluminum electrolytic capacitors is mainly dependent on environmental conditions (e.g. ambient temperature, humidity etc.) and electrical factors(e.g. operating voltage, ripple current etc.).Generally, the wear-out mechanism of non-solid aluminum electrolytic capacitors is based on evaporation of electrolyte through the rubber seal. Consequently, the factor of temperature (ambient temperature and internal heating due to ripple current) is the most critical to electrolytic capacitor life. The effect of voltage on capacitor life is negligible, especially for low voltage electrolytic capacitors. The lifetime of non-solid aluminum electrolytic capacitors can be expressed as following equations:
非固体铝电解电容器的寿命主要依赖于使用环境条件(如环境温度,湿度等)和电负荷情况(如工作电压,纹波电流等)。通常而言,非固体铝电解电容器的失效机理被认为是电解液通过胶塞逐渐挥发导致的。因此,温度因素(环境温度及由于纹波电流而引起的内热)对电解电容器寿命有重大影响。相反,电压对电容器寿命的影响可以忽略，尤其对于低压电解电容器而言更是如此。非固体铝电解电容器的寿命可以用下列公式估算: Le=Lo·Kt·Kr Where 这里
Le expected life at operating temperature Te (h) 在工作温度Te℃下的预期寿命(h)
Lo specified life at maximum operating temperature To (h) 在最大工作温度To℃下的保证寿命(h)
Kt ambient temperature acceleration term 环境温度影响因子
Kr ripple current acceleration term 纹波电流影响因子
(To-Te)/10
Kt= Lo·A Where 这里
To maximum rated operating temperature(℃)
最大额定工作温度(℃)
Te actual ambient temperature(℃) 实际环境使用温度(℃)
A acceleration coefficient (For the range 35℃ to the maximum operating temperature, A≈
2)
加速系数(对于从35℃到最高工作温度的范围, A≈2)
Kr=2
Where 这里
△T an increase in core temperature by internal heating due to ripple current(℃)
由于纹波电流引起的内热造成电容器芯子的温升(℃)
(△T=core temperature-ambient temperature 芯子湿度-环境湿度)
(-△T/5)
△T can be estimated as follows △T可用以下公式估算:
△T= (i2·R)(β·S)
Where 这里
i ripple current (A rms)
通过电容器的纹波电流(A rms)
R equivalent series resistance of the capacitor(Ω) 电容器的等效串联电阻(Ω)
2
β heat radiation coefficient(W/℃·cm)
2
铝壳的热辐射系数(W/℃·cm)
2
S surface area of the capacitor (cm)
2
电容器的表面积(cm)
The expected life of the capacitor at lower temperature neglect of ripple current effect is shown in the following figure.
当忽略纹波电流影响时,电容器在较低温度下的预期寿命可参照下图.
Quick Reference Guide of the Expected Life 预期寿命快速参考图
Capacitor ambient temperature
Example: Where a 2000hrs/105℃ guaranteed product is used continuously at 60℃, it can be expected to
have a life of 5 years.
例 如: 对于105℃ 2000小时的产品,如果在60℃环境中连续使用,它的预期寿命约5年。