Datasheet
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard A4079_ALA7D • 9/4/2018
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
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Snap-In Aluminum Electrolytic Capacitors – ALA7D, +85°C
Performance Characteristics
Item Performance Characteristics
Capacitance Range 240 – 820 µF
Rated Voltage 400 – 500 VDC
Operating Temperature −40 to +85°C
Storage Temperature −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)
25 10,000 16,000
30 13,000 21,000
35 15,000 24,000
End of Life Requirement UR > 100 VDC ∆ C/C < ±15%, ESR < 3 x initial ESR value, IL < initial specied 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 Specications
Procedure Requirements
D ≤ 35 mm
1.5 mm displacement amplitude
or 20 G maximum acceleration.
Vibration applied for three directions
of 4-hour sessions at 10 – 2,000 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%
Standards
AEC-Q200: aluminum electrolytic capacitors
IEC 60384-4 long life grade 40/85/56
Surge Voltage
Test Condition
Voltage (VDC)
400 450 500
≤ 30 s surge followed by a no load
period of 330 s, 1,000 cycles at +85°C
440 495 550
≤ 500 ms surge, 100 cycles at 20°C,
occurring randomly throughout the
life of the capacitor
520 550 600