ALC12E391EC450 datasheet, PDF - EEWORLD Datasheet

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ALC12E391EC450: DescriptionCAPACITOR, ALUMINUM ELECTROLYTIC, NON SOLID; CategoryPassive components capacitor; File Size1MB，13 Pages; ManufacturerKEMET; Websitehttp://www.kemet.com; Environmental Compliance

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ALC12E391EC450 Overview

CAPACITOR, ALUMINUM ELECTROLYTIC, NON SOLID

ALC12E391EC450 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	KEMET
package instruction	,
Reach Compliance Code	compliant
ECCN code	EAR99
capacitance	390 µF
Capacitor type	ALUMINUM ELECTROLYTIC CAPACITOR
diameter	40 mm
dielectric materials	ALUMINUM (WET)
ESR	379 mΩ
length	35 mm
Manufacturer's serial number	ALC12
negative tolerance	20%
Number of terminals	2
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package form	Snap-in
polarity	POLARIZED
positive tolerance	20%
Rated (DC) voltage (URdc)	450 V
ripple current	3350 mA
series	ALC12

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Snap-In Aluminum Electrolytic Capacitors

ALC12 Series, 85ºC

Overview

Applications

KEMET's ALC12 Series of capacitors is designed for applications

where high reliability and compact sizes are important, such as

switch mode power supplies (SMPS) and frequency converters.

KEMET's ALC12 Series of capacitors is a high CV snap-in

version of the ALC10 Series range. Both series are designed

for applications where high reliability and compact sizes are

important, such as switch mode power supplies (SMPS) and

frequency converters.

Benefits

•

Compact size

2,000 hours at +85°C (V

, I

applied)

Excellent surge voltage capability

Optimized designs available upon request

Part Number System

ALC12

Series

Snap-In type Aluminum

Electrolytic

Termination

See Termination Table

561

Capacitance Code (µF)

First 2 digits equals first 2

significant figures, 3rd digit

is the number of additional

zeros.

Size Code

See Dimension Table

200 = 200

250 = 250

350 = 350

400 = 400

450 = 450

200

Voltage (VDC)

One world. One KEMET

A4022_ALC12 • 4/15/2013

Snap-In Aluminum Electrolytic Capacitors – ALC12 Series, +85ºC

Shelf Life

The capacitance, ESR and impedance of a capacitor will not change significantly after extended storage periods, however the leakage

current will very slowly increase. KEMET products are particularly stable and allow a shelf life in excess of three years at 40°C. See

sectional specification under each product series for specific data.

Re-age (Reforming) Procedure

Apply the rated voltage to the capacitor at room temperature for a period of one hour, or until the leakage current has fallen to a steady

value below the specified limit. During re-aging a maximum charging current of twice the specified leakage current or 5 mA (whichever

is greater) is suggested.

Reliability

The reliability of a component can be defined as the probability that it will perform satisfactorily under a given set of conditions for a

given length of time.

In practice, it is impossible to predict with absolute certainty how any individual component will perform; thus, we must utilize probability

theory. It is also necessary to clearly define the level of stress involved (e.g. operating voltage, ripple current, temperature and time).

Finally, the meaning of satisfactory performance must be defined by specifying a set of conditions which determine the end of life of the

component.

Reliability as a function of time, R(t), is normally expressed as: R(t)=e-

λt

where R(t) is the probability that the component will perform satisfactorily for time t, and λ is the failure rate.

Failure Rate

The failure rate is the number of components failing per unit time. The failure rate of most electronic components follows the

characteristic pattern:

• Early failures are removed during the manufacturing process.

• The operational life is characterized by a constant failure rate.

• The wear out period is characterized by a rapidly increasing failure rate.

The failures in time (FIT) are given with a 60% confidence level for the various type codes. By convention, FIT is expressed as 1 x 10

-9

failures per hour. Failure rate is also expressed as a percentage of failures per 1,000 hours.

e.g., 100 FIT = 1 x 10

-7

failures per hour = 0.01%/1,000 hours

End of Life Definition

Catastrophic Failure: short circuit, open circuit or safety vent operation

Parametric Failure:

• Change in capacitance > ±10%

• Leakage current > specified limit

• ESR > 2 x initial ESR value

A4022_ALC12 • 4/15/2013

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