A551EK461Q400C datasheet, PDF - EEWORLD Datasheet

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A551EK461Q400C: DescriptionFilm Capacitors 460.PF 400V; CategoryPassive components; File Size4MB，12 Pages; ManufacturerKEMET; Websitehttp://www.kemet.com

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A551EK461Q400C Overview

Film Capacitors 460.PF 400V

A551EK461Q400C Parametric

Parameter Name	Attribute value
Product Category	Film Capacitors
Manufacturer	KEMET
Factory Pack Quantity	100

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Snap-In Aluminum Electrolytic Capacitors

PEH536 Series, +105°C

Overview

Applications

Typical applications for KEMET's PEH536 capacitor include

switch mode power supplies (SMPS), drives, welding

equipment, uninterruptible power supplies (UPS), and other

power electronic applications where high current ratings

and compact size are important.

KEMET's PEH536 is a long-life electrolytic capacitor

designed to offer high ripple current capability and low

mounting cost. Low ESR is the result of a very low resistive

paper/electrolyte system. Low ESR, together with the TDC

thermal concept, gives the PEH536 a high ripple current

capability.

Benefits

•

Snap-In

4,600 hours at +105°C (V

, I

applied)

PCB mounting

Low ESR and ESL

High ripple current

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Part Number System

PEH536

Series

Snap-In type

Aluminum

Electrolytic

Rated Voltage (VDC)

J = 35

M = 63

P = 100

R = 200

S = 250

U = 350

V = 400

Y = 450

Size Code

See Dimension

Table

439

Capacitance Code

(µF)

The last two

digits represent

significant figures.

The first digit

indicates the total

number digits.

Version

0 = Standard

Capacitance

Tolerance

M = ±20%

Termination

See Termination

Table

One world. One KEMET

A4025_PEH536 • 2/7/2017

Snap-In Aluminum Electrolytic Capacitors – PEH536, +105°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

A4025_PEH536 • 2/7/2017

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