Datasheet

2© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard A4075_ALS70_71 • 7/15/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Screw Terminal Aluminum Electrolytic Capacitors – ALS70/71, High CV, +85°C
Performance Characteristics
Item Performance Characteristics
Capacitance Range 180 – 1,300,000 µF
Rated Voltage 25 – 630 VDC
Operating Temperature −40 to +85°C
Storage Temperature Range −55 to +85°C
Capacitance Tolerance ±20% at 100 Hz/+20°C
Operational Lifetime
D (mm)
Rated Voltage and Ripple
Current at +85°C (hours)
Rated Voltage at +85°C (hours)
36 11,000 22,000
51 18,000 36,000
63.5, 66 19,000 38,000
77, 90 20,000 40,000
End of Life Requirement
25 ≤ UR ≤ 100 VDC ΔC/C < ±20%, UR > 100 VDC ΔC/C < ±15%
ESR < 3 x initial limit
Shelf Life 2,000 hours at +85°C or 30,000 hours at +40°C 0 VDC
Leakage Current
If rated capacitance is < 330,000 µF, then I = 0.006 CV or 6,000 µA (whichever is smaller)
If rated capacitance is ≥ 330,000 µF, then I = 16,000 µA
C = rated capacitance (µF), V = rated voltage (VDC) Voltage applied for 5 minutes at +20°C
Vibration Test Specications
Procedure Requirements
Case Length < 220 mm
0.75 mm displacement amplitude
or 10 G maximum acceleration
Vibration applied for three 2-hour
sessions at 10 – 55 Hz
(Capacitor clamped by body)
No leakage of electrolyte
or other visible damage
Deviations in capacitance from
initial measurements must not
exceed Δ C/C < 5%
Case Length ≥ 220 mm
0.35 mm displacement amplitude
or 5 G maximum acceleration
Vibration applied for three
0.5-hour sessions at 10 – 55 Hz
(Capacitor clamped by body)
Standards IEC 60384–4 long life grade 40/85/56
Surge Voltage
Test Condition
Voltage (VDC)
25 40 63 100 200 250 350 400 450 500 550 600 630
≤ 30 seconds surge followed
by a no load period of 330
seconds, 1,000 cycles at +85°C
28.75 46 72.5 115 230 288 385 440 495 550 605 660 690