T493X686J025AK6411 datasheet, PDF

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T493X686J025AK6411: DescriptionTantalum Capacitor, Tantalum (dry/solid),; CategoryPassive components capacitor; File Size1MB，26 Pages; ManufacturerKEMET; Websitehttp://www.kemet.com

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T493X686J025AK6411 Overview

Tantalum Capacitor, Tantalum (dry/solid),

T493X686J025AK6411 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Objectid	7006645879
package instruction	, 2917
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	ESR IS MEASURED AT 100 KHZ
capacitance	68 µF
Capacitor type	TANTALUM CAPACITOR
dielectric materials	TANTALUM (DRY/SOLID)
ESR	300 mΩ
high	4 mm
JESD-609 code	e0
leakage current	0.017 mA
length	7.3 mm
Installation features	SURFACE MOUNT
negative tolerance	5%
Number of terminals	2
Maximum operating temperature	125 °C
Minimum operating temperature	-55 °C
Package form	SMT
method of packing	TR, Embossed Plastic, 7 Inch
polarity	POLARIZED
positive tolerance	5%
Rated (DC) voltage (URdc)	25 V
size code	2917
surface mount	YES
Delta tangent	0.08
Terminal surface	Tin/Lead (Sn/Pb)
Terminal shape	J BEND
width	4.3 mm

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Tantalum Surface Mount Capacitors – High Reliability

T493 High Reliability Alternative MnO

(CWR11 Style)

Overview

The KEMET T493 is designed for the High Reliability

Series (HRA) requirements of military and aerospace

applications. The T493 is a surface mount product,

offering various lead-frame plating options, Weibull grading

options, surge current testing, F-Tech (an improved anode

manufacturing process), and Simulated Breakdown Voltage

(SBDV) screening options to improve long term reliability.

Standard, low, and ultra-low ESR options are available.

All lots of T493 are conditioned with MIL-PRF-55365

Group A testing. This series is also approved for DLA

drawing 07016 (please see part number list specific to this

drawing).

KEMET’s F-Tech eliminates hidden defects in the dielectric,

which continue to grow in the field, causing capacitor

failures. Based on the fundamental understanding of

degradation mechanisms in tantalum and niobium

capacitors, F-Tech incorporates multiple process

methodologies. Some minimize the oxygen and carbon

content in the anodes, which become contaminants

and can lead to the crystallization of the anodic oxide

dielectric. This process methodology reduces the

contaminants, improving quality of the dielectric. An

additional technology provides a stronger mechanical

connection point between the tantalum lead wire and

tantalum anode, enhancing robustness and product

reliability. The benefit of F-Tech is illustrated by a 2,000

hour, 85°C, 1.32 X rated voltage accelerated life test.

F-Tech parts see no degradation while standard tantalums

have 1.5 orders of magnitude degradation in leakage

current. F-Tech is currently available for T493 Series

(select D and X case capacitance values in 25 V and

higher rated voltage). Please contact KEMET for details on

ordering other part types with these capabilities.

The KEMET patented Simulated Breakdown Screening (SBDS)

is a nondestructive testing technique that simulates the

breakdown voltage (BDV) of a capacitor, without the damage

to its dielectric or to the general population of capacitors.

This screening identifies hidden defects in the dielectric,

providing the highest level of dielectric testing. SBDS is

based on the simulation of breakdown voltage (BDV), the

ultimate test of the dielectric in a capacitor.

Low BDV indicates defects in the dielectric, and therefore, a

higher probability of failure in the field. High BDV indicates

a stronger dielectric and high-reliability performance in the

field. This new screening method allows KEMET to identify

the breakdown voltage of each individual capacitor and

provide only the strongest capacitors from each lot.

SBDS is currently available on select part types in the T493

and T497. Please contact KEMET for details on ordering other

part types with these capabilities.

KEMET offers these technologies per the following options:

• F-Tech only

• SBDS only

• Combination of both F-Tech and SBDS for the ultimate

protection

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One world. One KEMET

Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com

T2007_T493 • 2/14/2020

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