A359SP372M450A datasheet, PDF - EEWORLD Datasheet

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A359SP372M450A: DescriptionKEMET; Categoryunclassified; File Size5MB，12 Pages; ManufacturerKEMET; Websitehttp://www.kemet.com

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A359SP372M450A Parametric

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Screw Terminal Aluminum Electrolytic Capacitors

PEH200 Series, +85°C

Overview

Applications

Typical applications for KEMET's PEH200 capacitor include

uninterruptible power supplies (UPS), ground power units

(GPU), welding equipment, and drives where high current

ratings and compact size are important.

KEMET's PEH200 Series of capacitors has a polarized

all-welded design, heavy duty screw terminals, extended

cathode construction, safety vent, and plastic insulation.

The sealing system is designed for electrolyte leakage-free

operation and a very low gas-diffusion rate of electrolyte.

Mechanical contact between the winding and aluminum

case allows excellent heat transfer from the winding hot-

spot to the ambient, which means cooler operation and

very high current ratings.

Benefits

•

High CV value

Long life, up to 29,000 hours at +85°C (V

, I

applied)

Low ESR and ESL

Compact size

Optimized designs available upon request

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Part Number System

PEH200

Series

Screw Terminal

Aluminum

Electrolytic

Rated Voltage (VDC)

H = 25

K = 40

M = 63

P = 100

S = 250

U = 350

X = 385

V = 400

O = 420

Y = 450

Z = 500

Size Code

See Dimension

table

515

Capacitance Code

(µF)

The last two

digits represent

significant

figures. The

first digit

specifies the

total number of

digits.

Version

0 = Standard

Capacitance

Tolerance

M = ±20%

Stud Option

U2 = Plain Can

B2 = Threaded

mounting stud

One world. One KEMET

A4034_PEH200 • 2/7/2017

Screw Terminal Aluminum Electrolytic Capacitors – PEH200 Series, +85°C

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

A4034_PEH200 • 2/7/2017

Screw Terminal Aluminum Electrolytic Capacitors – PEH200 Series, +85°C

MTBF

The mean time between failures (MTBF) is simply the inverse of the failure rate.

MTBF= 1/λ

early failures

wear out

Failure Rate

operational life

Time

The failure rate is derived from our periodic test results. The failure rate (λ

) is, therefore, only given at test temperature for

life tests. An estimation is also given at 60°C.

The expected failure rate for this capacitor range is based on our periodic test results for capacitors with structural

similarity.

Failure Rate per Hour

85°C 1,000 FIT

60°C 100 FIT

Failure rate per hour includes both catastrophic and parametric failures.

Environmental Compliance

As an environmentally conscious company, KEMET is working continuously with improvements concerning the environmental

effects of both our capacitors and their production. In Europe (RoHS Directive) and in some other geographical areas like

China, legislation has been put in place to prevent the use of some hazardous materials, such as lead (Pb), in electronic

equipment. All products in this catalog are produced to help our customers’ obligations to guarantee their products and fulfill

these legislative requirements. The only material of concern in our products has been lead (Pb), which has been removed

from all designs to fulfill the requirement of containing less than 0.1% of lead in any homogeneous material. KEMET will

closely follow any changes in legislation world wide and makes any necessary changes in its products, whenever needed.

Some customer segments such as medical, military and automotive electronics may still require the use of lead in electrode

coatings. To clarify the situation and distinguish products from each other, a special symbol is used on the packaging labels

for RoHS compatible capacitors.

Because of customer requirements, there may appear additional markings such as LF = Lead Free or LFW = Lead Free Wires

on the label.

A4034_PEH200 • 2/7/2017

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