电容寿命公式与电容纹波寿命测试

CapXon丰宾电容寿命计算公式与CapXon丰宾电容纹波计算测试方式

   CapXon丰宾电容
CAPXON ALUMINUM ELECTROLYTIC LIFE ESTIMATION CALCULATIONS (>160V)
Reference Designator Load Condition Part number Rated Voltage Series Uf size D*L (mm) Base lifetime of capacitor, Lo Maximum rated category temperature of capacitor, deg C, (To) Actual Surface temperature of Capacitor, deg C, (Ts) Delta To  (deg C) Actual Applied Voltage, Vx Rated Ripple Current, (A) Applied Ripple Current, (A) Freq. Coeff  . Vo / Vx Equivalent Rated Ripple Current (A) Delta T Estimated Lifetime, hrs Estimated Lifetime, yrs
Equation 2 (160V or higher, deltaT≤ 20) – NOTE:  If Vx <80% of Vo then Vx=80% of Vo
CAPXON C2 KM470M450K250 450 KM 47 18*25 2000 105 85 5 310 350 157.000 1 1.25 350.000 1.01        30,184 3.45
CAPXON
C19 KM4R7M400G125 400 HP 680 25*46 2000 105 58.7 5 190 2.3 4.000 1 1.25 2.300 15.12        54,991 6.28
Delta To: 85℃ Cap 10℃
105℃ Cap 5℃
125℃ Cap 5℃
Where : L=Assured lifetime(hours);This has been prescribed in the catalogs or product specifications.
额定寿命。一般在规格书或目录中有描述
To=Maximum rated operating temperature(°C) of the capacitor.
电容最高使用温度,即额定温度
T=Actual operating temperature(°C) which the capacitor is used at.
电容在电路中实际使用时的温度
△T=An increase(deg) in core temperature produced by internal heating due to actual operating ripple current.
实际纹波电流产生的温升
△To=Inside temperature increase of capacitor by permissible ripple current at the maximum operating temperature
电容最大允许温升
Io=Rated maximum permissible ripple current(Arms).
最大允许的纹波电流,即电容额定纹波电流
Ix=Operating ripple current(Arms) actually flowing into a capacitors.
实际电路纹波电流
Vx=Actual Applied Voltage
电路中实际使用的电压
V0=Rated Voltage
电容额定电压