489D686X06R3D1A datasheet(7/9 Pages) VISHAY

Part #	489D686X06R3D1A

Description	Resin-Coated, Radial-Lead Solid Tantalum Capacitors

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Manufacturer	VISHAY [Vishay Siliconix]

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7 / 9 page

489D, 499D

Vishay Sprague

Resin-Coated, Radial-Lead

Solid Tantalum Capacitors

www.vishay.com

For technical questions, contact: eurotant@vishay.com

Document Number: 42070

7

Revision: 12-Jun-06

GUIDE TO APPLICATION

1.

A-C Ripple Current: The maximum allowable ripple

current shall be determined from the formula:

where,

P =

Power Dissipation in Watts at + 25 °C as

given below

RESR =

The capacitor Equivalent Series

Resistance at the specified frequency.

2.

A-C Ripple Voltage: The maximum allowable ripple

voltage shall be determined from the formula:

where,

Z =

The capacitor Impedance at the specified

frequency.

3.

AC ripple current or voltage derating factor: If

these capacitors are to be operated at temperatures

above + 25 °C, the permissible rms ripple current or

voltage shall be calculated using the derating factors

in the table below:

4.

Power

dissipation:

Power

dissipation

will

be

affected by the heat sinking capability of the mounting

surface. Non-sinusoidal ripple current may produce

heating effects which differ from those shown in the

following table. It is important that the equivalent IRMS

value be established when calculating permissible

operating levels.

5.

Cleaning: These capacitors are compatible with all

commonly used solvents, such as TES, TMS, Prelete

and Chloretane. Solvents containing methylene

chloride or other epoxy solvents should be avoided

since these will attack the epoxy encapsulation

material.

TEMPERATURE

DERATING FACTOR

+ 25 °C

1.0

+ 55 °C

0.9

+ 85 °C

0.8

+ 125 °C

0.4

I

rms

P

R

ESR

----------------

=

V

rms

P

R

ESR

-----------------

Z

×

=

CASE CODE

POWER DISSIPATION

AT + 25 °C (WATTS)

A

0.080

B

0.090

C

0.100

D

0.110

E

0.120

F

0.130

H

0.140

M

0.150

N

0.160

R

0.180

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