开关电源电解电容寿命计算
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Measured current Ix (mA) 646 646 646 646
ripple Capacitor Life Lx (Hr) 91340 91340 2089 117424 Tx Ktemp 57.4 27.0958 57.4 27.0958 80.0 5.6569 54.4 33.3589 Kripple 1.1237 1.1237 0.1231 1.1733
Capacitor life time calculation worksheet (TAICON formula) Lx = Lo * Ktemp * Kripple Lx = Expected life time (hours) Lo = manufacturer estimated lifetime at maximum operating temperature Ktemp = 2^[(To-Tx)/10] = Temperature acceleration factor To = maximum operating temperature (105 deg C or 85 deg C) Tx = Ta + Tr = case temperature of capacitor Tr = Case temperature rise of capacitor with respect to ambient Kripple = 2^[d(1-Kripple1/Kripple2] = Ripple acceleration factor Kripple1 = (Ix/Io)^2 Kripple2 = 2^{(To-Tx)/30} d = ripple current coefficient Ix = actual rms ripple current Io = rated maximum rms ripple current Series VX VR VT VZ VL ST PM PW/PZ HD/HF PJ PS Max. Temp. 85 85 105 105 105 105 Rated Voltage 6.3~400 6.3~400 6.3~400 6.3~400 6.3~100 6.3~50 6.3~100 160~400 6.3~100 160~400 6.3~50 6.3~100 160~400 6.3~100 160~400 Coefficient 1.10 0.93 1.10 0.70 1.10 0.40 0.70 0.55 1.10 0.55 0.70 0.70 0.55 1.10 0.55 Series Max. Temp. SR 85 SM 85 ST 105 SP 85 SL 85 MA 85 MT/MU 105 NP 85 ET 105 BP 85 AS 105 HW 105 HI 105 HG 105 HH 105
Series PY PF PL AQ/AR SD HT BL TC TN TW TL
Max. Temp.
105 125 105 85 85 105 105
Rated Voltage Coefficient 6.3~500 1.10 6.3~100 0.70 6.3~63 0.70 200~450 0.55 6.3~50 0.40 10~50 0.70 160~450 0.70 4~50 0.40 6.3~50 0.40 4~50 0.25 6.3~35 0.25
Kripple1
源自文库
Kripple2
2.544221917 3.003545807 2.544221917 3.003545807
6.677056
1.781797436
2.544221917 3.21912069
Rated ripple current To (deg) Io (mA) 105 405 105 405 105 250 105 405
Nomina Coeffici Case temp. rise l life ent Lr 3000 3000 3000 3000 d 1.1 1.1 1.1 1.1 Tr 32.4 32.4 55 29.4
Rated Voltage Coefficient 6.3~50 0.40 4~50 0.40 6.3~50 0.40 6.3~50 0.25 6.3~50 0.25 4~50 0.25 4~50 0.40 6.3~100 1.05 6.3~160 0.70 50 max. 0.63 200~450 0.55 6.3~100 1.10 6.3~16 0.70 6.3~100 1.10 6.3~35 1.10
105 105
Ambinet temperature (Ta) : 25 deg Ref code Rated Value Brand name Rated voltage and dim Temp. Code C1 C2 C5 C17 Vrated Co(uF) 10V 1200uF KZE 10X20 250V 8.2 16V 330uF KZE8*11.5 50V 10 KME 5*11