www.vishay.com

95

591D

Vishay Sprague

Document Number 40012

Revision 22-Nov-04

For technical questions, contact tantalum@vishay.com

P = Power Dissipation in Watts @ + 25°C as given

in the table in Paragraph Number 6.0 (Power

Dissipation)

at the specified frequency.

3.

A-C Ripple Voltage: The maximum allowable ripple

voltage shall be determined from the formula:

or, from the formula:

where,

P = Power Dissipation in Watts @ + 25°C as given in

the table in Paragraph Number 6.0 (Power

Dissipation).

at the specified frequency.

7.1

At + 25

the value listed in the Standard Ratings Table.

7.2

At + 85

times the value listed in the Standard Ratings Table.

7.3

At + 125

12 times the value listed in the Standard Ratings

Table.

8.

Equivalent Series Resistance: Measurements shall

be made by the bridge method at, or referred to, a

frequency of 100 KHz and a temperature of + 25°C.

8.1

The Equivalent Series Resistance shall not exceed the

value listed in the Standard Ratings Table.

9.

Life Test: Capacitors shall withstand rated DC

voltage applied at + 85°C for 2000 hours or derated

DC voltage applied at + 125°C for 1000 hours.

9.1

Following the life test, the dissipation factor and

leakage shall meet the initial requirement; the

capacitance change shall not exceed ± 10% of the

initial value.

10

Humidity Test: Capacitors shall withstand 1000 hours

at + 40°C, 90% to 95% relative humidity, with no

voltage applied

10.1

Following the humidity test, capacitance change shall

not exceed ± 10% of the initial value, dissipation factor

shall not exceed 150% of the initial requirement;

leakage currrent shall not exceed 200% of the initial

requirement at + 25°C

11.

Solderability: Capacitors will meet the solderability

requirements of ANSI/J-STD-002, test B category 1.

PERFORMANCE CHARACTERISTICS (Continued)

12.

Resistance to Soldering Heat: Capacitors mounted

on a substrate will withstand + 260°C for 5 seconds.

12.1

Following the resistance to soldering heat test,

capacitance, dissipation factor and DC leakage

current shall meet the initial requirement.

13.

Marking: The small body area of these capacitors

does not allow elaborate marking schemes. All

required information is present on the carton or

package in which the parts are shipped; in addition,

part number, quantity and data code are indicated on

the reels.

14.

Terminal Strength: Per IEC-384-3, minimum of

5N shear force.

15.

Environmental: Mercury, CFC and ODS materials

are not used in the manufacture of these capacitors.

16.

Flammability: Encapsulant materials meet UL94 V0

17.

Capacitor Failure Mode: The predominant failure

mode for solid tantalum capacitors is increased

leakage current resulting in a shorted circuit. Capaci-

tor failure may result from excess forward or reverse

DC voltage, surge current, ripple current, thermal

shock or excessive temperature.

The increase in leakage is caused by a breakdown of

the Ta

For additional information on

leakage failure of solid tantalum chip capacitors, refer

to Vishay Sprague Technical Paper, “Leakage Failure

Mode in Solid Tantalum Chip Capacitors.”

P

P

GUIDE TO APPLICATION

1.0

Recommended rated working voltage guidelines:

(-55°C to + 85°C)

Application Voltage

Recommended Capacitor

(V)

Voltage Rating (V)

2.5

4

4

6.3

58

610

10

16

12

20

18

25

2.

A-C Ripple Current: The maximum allowable ripple

current shall be determined from the formula:

where,