Load Life Test

Test

Mount the capacitor on a heat sink with a low thermal resistance path.

Apply the maximum rated voltage for 2000 hrs at +150°C with the

+150°C maximum ripple current applied to the capacitor. After the

test, measure the capacitance, ESR, and DCL at +20°C.

∆C

Capacitance will be within ±15% of the initial value

ESR

ESR will be less than 2 times the initial value

DCL

The leakage current will be within the specified value

Appearance No electrolyte leakage or other visible damage. The markings will be

legible.

Vibration Test

Surge Voltage Test

Storage at Low Temperature Test

Charge and Discharge Test

Test

Clamp the case to the test fixture.

Frequency range is 10 - 2000 Hz. Amplitude of 1.5mm or 20 g

acceleration.

Duration of test is 22 hours in each of three directions.

After the test, measure the capacitance at +20°C.

∆C

Capacitance change from the initial measurement must not exceed 5%.

Appearance No electrolyte leakage or other visible damage.

Test

Subject the capacitor to 1000 surge voltage cycles at +150°C. For each

cycle, apply 1.15 times the rated voltage for 30 seconds followed by no

voltage for 5 min. and 30 seconds. The time constant for charging is 0.1

seconds. After one to two hours, measure the capacitance and esr.

∆C

Capacitance change from the initial measurement must not exceed 15%.

ESR

The ESR will be < 2x initial value.

Appearance No electrolyte leakage or other visible damage.

Test

Subject the capacitor to 72 hours at -55°C. After 16 hours at room

temperature, measure the capacitance and DCL.

∆C

Capacitance change from the initial measurement must not exceed 10%.

DCL

Leakage current will meet the initial specification.

Appearance No electrolyte leakage or other visible damage. The markings are to be

legible.

Test

Subject the capacitor to 1 million charge/discharge cycles at +20°C. For

each cycle, apply the rated voltage for 0.5 seconds using a 0.1 second

charge/discharge time constant. After the test, the following will apply;

∆C

Capacitance will be within ±10% of the initial value.

Appearance No electrolyte leakage or other visible damage.

Type AXLH -40 ºC to +150 ºC

High Temperature Axial Leaded Aluminum Electrolytic Capacitors

CDM Cornell Dubilier • 140 Technology Place • Liberty, SC 29657 • Phone: (864)843-2277 • Fax: (864)843-3800