B45020E6869K157 datasheet, PDF

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B45020E6869K157: DescriptionCAPACITOR, TANTALUM, SOLID, POLARIZED, 20V, 68uF, SURFACE MOUNT, 2917, CHIP, ROHS COMPLIANT; CategoryPassive components capacitor; File Size636KB，6 Pages; ManufacturerEPCOS (TDK); Environmental Compliance

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B45020E6869K157 Overview

CAPACITOR, TANTALUM, SOLID, POLARIZED, 20V, 68uF, SURFACE MOUNT, 2917, CHIP, ROHS COMPLIANT

B45020E6869K157 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	EPCOS (TDK)
package instruction	, 2917
Reach Compliance Code	compliant
ECCN code	EAR99
capacitance	68 µF
Capacitor type	TANTALUM CAPACITOR
dielectric materials	TANTALUM (DRY/SOLID)
JESD-609 code	e3
leakage current	0.0136 mA
Manufacturer's serial number	B450
Installation features	SURFACE MOUNT
negative tolerance	10%
Number of terminals	2
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Package shape	RECTANGULAR PACKAGE
method of packing	TR, 7 INCH
polarity	POLARIZED
positive tolerance	10%
Rated (DC) voltage (URdc)	20 V
size code	2917
surface mount	YES
Delta tangent	0.06
Terminal surface	Tin (Sn)
Terminal shape	J BEND

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Tantalum Chip Capacitors

SpeedPower ll, Low ESR

Ordering code:

Date:

B45006E337*+806

July 2006

information contained therein without EPCOS' prior express consent is prohibited.

Tantalum Chip Capacitors

SpeedPower ll, Low ESR

Cautions and warnings

B45006E337*+806

When using tantalum capacitors with a manganese dioxide coating, the following cautions and

warnings should be taken into account:

Polarity

Because tantalum capacitors are

polar capacitors,

it is important to observe their polarity

markings (positive pole on the anode, negative pole on the cathode). Any incorrect polarity

resulting from the sum of the AC and DC voltage components must be smaller than or equal to

the permitted

polarity reversal voltage

(see “General technical information”, section 4.6 and

section 4.8 under www.epcos.com/tantalum_capacitors). To avoid reducing their reliability, this

voltage may only occur for a short time, at most five times for a duration of one minute per hour.

Voltage

The

maximum continuous voltage

depends on the ambient temperature. Within the temperature

range of 55 to +85

°C,

the rated voltage is equal to the maximum continuous voltage. Between

+ 85 and + 125

°C

the maximum continuous voltage must be reduced linearly from the full rated

voltage to 2/3 of it (derating). At 150

°C

(only B4519*P series) the voltage must be reduced to 1/2

and at 175

°C

(only B4519*T series) to 1/3 of the rated voltage. Operation below the maximum

continuous voltage has a positive effect on the capacitor’s failure rate. The maximum continuous

voltage must not be exceeded (see“Quality and environment”, section 1.11 under

www.epcos.com/tantalum_capacitors).

All unfavourable operating conditions (such as possible line overvoltages, unfavourable

tolerances of the transformation ratio of the line transformer in the equipment, repeated

overvoltages when the equipment is switched on, high ambient temperatures) must be taken into

account when determining the

operating voltage.

The

surge voltage

is the maximum voltage (peak value) that may be applied to the capacitor for

short periods, at most five times for a total duration of up to 1 minute per hour. The surge voltage

must not be applied for periodic charging and discharging in the course of normal operation and

cannot be part of the operating voltage. The permissible surge voltage for all capacitors in this

data book is 1.3 x the rated voltage. The occurrence of voltage impulses (transient voltages) that

exceed the surge voltage may lead to irreparable damage.

Capacitance

The actual

capacitance

of a capacitor can deviate from the rated capacitance by as much as the

full magnitude of the tolerance at delivery. The capacitance varies with the temperature (at

+125

°C

+12% up to +20%) and decreases with increasing frequency (see “General technical

information”, section 5 under www.epcos.com/tantalum_capacitors).

Please read

Important notes

and

Cautions and warnings

at the end of this document.

Page 4 of 6

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