Datasheet

2© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com A4031_ALS30_31 • 3/24/2017
Screw Terminal Aluminum Electrolytic Capacitors – ALS30/31 Series, +85°C
Performance Characteristics
Item Performance Characteristics
Capacitance Range 100 – 680,000 µF
Rated Voltage 25 – 500 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 ∆ C/C < ±10%, ESR < 2 x initial ESR value, IL < initial specied limit
Shelf Life 2,000 hours at +85°C or 30,000 hours at +40°C 0 VDC
Leakage Current
I = 0.006 CV or 6,000 (µA, whichever is smaller)
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: ∆ 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
≤ 30s Surge followed by a no load
period of 330s, 1,000 cycles at +85°C
28.75 46 72.5 115 230 288 385 440 495 550
≤ 500 ms surge, 100 cycles
at 20°C, occurring randomly
throughout the life of the capacitor
350 400 500 520 550 600