255D157X06R3D2T045 [VISHAY]

Organic Polymer, Low ESR, Tantalum Capacitors Commercial, Surface Mount Capacitors for Switch Mode Power Supplies and Converters; 有机聚合物，低ESR的钽电容器商业，表面贴装电容器的开关电源和转换器


型号：	255D157X06R3D2T045
厂家：	VISHAY
描述：	Organic Polymer, Low ESR, Tantalum Capacitors Commercial, Surface Mount Capacitors for Switch Mode Power Supplies and Converters 有机聚合物，低ESR的钽电容器商业，表面贴装电容器的开关电源和转换器转换器开关电容器钽电容器
文件：	总6页 (文件大小：178K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Type 255D

Vishay Sprague

Organic Polymer, Low ESR, Tantalum Capacitors

Commercial, Surface Mount Capacitors for

Switch Mode Power Supplies and Converters

FEATURES

• Conductive polymer cathode technology

• Low ESR

• No-ignition failure mode

• EIA standard case sizes

• 100% surge current tested

PERFORMANCE CHARACTERISTICS

Operating Temperature: - 55°C to + 105°C

Capacitance Range: 100µF to 220µF

Capacitance Tolerance: ± 20% standard

Voltage Rating: 4WVDC to 10WVDC

DIMENSIONS in inches [millimeters]

TH Min.

CASE

EIA

TH(Min.)

7343

0.287 ± 0.012

[7.3 ± 0.3]

0.170 ± 0.012

[4.3 ± 0.3]

0.110 ± 0.012

[2.8 ± 0.3]

0.051 ± 0.012

[1.3 ± 0.3]

0.095 ± 0.012

[2.4 ± 0.1]

0.039

[1.0]

www.vishay.com

Document Number: 40052

Revision 04-Feb-03

Type 255D

Vishay Sprague

ORDERING INFORMATION

004

227

255D

REEL SIZE AND

PACKAGING

TERMINATION

CAPACITANCE DC VOLTAGE RATING CASE CODE

CAPACITANCE

MODEL

TOLERANCE

@ + 85°C

2 = Solderable

coating.

This is expressed

T = Tape and

reel*

7" [178mm] reel

W =13" [330mm]

reel

This is expressed

in volts. To

complete the

three-digit block,

zeros precede the

voltage rating. A

decimal point is

indicated by an "R"

(6R3 = 6.3 volts).

X0 = ± 20%

See Ratings

and Case

Codes Table.

in picofarads. The first

two digits are the

significant figures.

The third is the

number of zeros to

follow.

Standard.

*Cathode nearest

sprocket hole.

Note: Preferred Tolerance and Reel size are in bold.

Last three characters designate ESR max. Limit in milliohms.

RATINGS AND CASE CODES

µF

6.3V

10V

220

150

100

*Preliminary values, contact factory for availability.

STANDARD RATINGS

CAPACITANCE

CASE

CODE

PART

NUMBER

MAX

DCL

@ +25°C

MAX DF

@ + 25°C

MAX ESR

MAX RIPPLE

(µF)

@ 100K Hz

100K Hz

IRMS

(mΩ)

(AMPS)

4WVDC @ + 85°C, 3.2WVDC @ + 105°C, SURGE = 5.2V @ + 85°C, 4.2V @ + 105°C

220*

220

255D227X_004D2_055*

255D227X_004D2_045*

255D227X_004D2_040

88*

55*

45*

2.0*

2.0

6.3WVDC @ + 85°C, 5WVDC @ + 105°C, SURGE = 8V @ + 85°C, 5V @ +105°C

150

255D157X_6R3D2_055

255D157X_6R3D2_045

2.0

10WVDC @ + 85°C, 8WVDC @ + 105°C, SURGE = 13V @ + 85°C, 8V @ +105°C

100

255D107X_010D2_065

255D107X_010D2_050

100

2.0

*Preliminary values, contact factory for availability.

Document Number: 40052

Revision 04-Feb-03

www.vishay.com

Type 255D

Vishay Sprague

PERFORMANCE CHARACTERISTICS

5. Capacitance Change With Temperature: The

capacitance change with temperature shall not exceed

the following percentage of the capacitance measured

at + 25°C: at

1. Operating Temperature: Capacitors are designed to

operate over the temperature range of - 55°C to

+105°C.

1.1 Capacitors may be operated to + 105°C with voltage

derating to 0.8 times the + 85°C rating.

+ 85°C

±20%

+ 105°C

±30%

- 55°C

±20%

+ 85°C

WORKING

VOLTAGE

(V)

+ 105°C RATING

SURGE

VOLTAGE

(V)

WORKING

SURGE

VOLTAGE

(V)

VOLTAGE

(V)

6. Dissipation Factor: The dissipation factor, determined

from the expression 2πfRC, shall not exceed values listed

in the Standard Ratings Table.

4.0

6.3

10.0

5.2

8.0

13.0

3.2

5.0

8.0

4.3

6.5

10.4

6.1 Measurements shall be made by the bridge method at,

or referred to, a frequency of 120Hz and a temperature

of + 25°C.

2. DC Working Voltage: The DC working voltage is the

maximum operating voltage for continuous duty at the

rated temperature.

7. Leakage Current: Capacitors shall be stabilized at the

rated temperature for 30 minutes. Rated voltage shall

be applied to capacitors for 5 minutes using a steady

source of power (such as a regulated power supply) with

1000 ohm resistor connected in series with the capaci-

tor under test to limit the charging current. Leakage cur-

rent shall then be measured.

3. Surge Voltage: The surge DC rating is the maximum

voltage to which the capacitors may be subjected un-

der any conditions, including transients and peak ripple

at the highest line voltage.

3.1 Surge Voltage Test: Capacitors shall withstand the

surge voltage applied in series with a 33 ohm ± 5%

resistor at the rate of one-half minute on, one-half minute

off, at + 85°C, for 1000 successive test cycles.

7.1 At + 25°C, the leakage current shall not exceed the value

listed in the Standard Ratings Table.

7.2 At + 85°C, the leakage current shall not exceed 10 times

the value listed in the Standard Ratings Table.

3.2 Following the surge voltage test, the dissipation factor

shall meet the initial requirements; the capacitance shall

not have changed more than ± 20%. The leakage cur-

rent shall not exceed 150% of the initial value.

7.3 At + 105°C, the leakage current , while measured at 0.8

times the rated voltage, shall not exceed 10 times the

value listed in the Standard Ratings Table.

8. ESR

4. Capacitance Tolerance: The capacitance of all capaci-

tors shall be within the specified tolerance limits of the

normal rating.

8.1 ESR (Equivalent Series Resistance) shall not exceed

the values listed in the Ratings Table. Measurement shall

be made by the bridge method at a frequency of 100kHz

and a temperature of + 25°C.

4.1 Capacitance measurements shall be made by means

of polarized capacitance bridge. The polarizing voltage

shall be of such magnitude that there shall be no rever

sal of polarity due to the AC component. The maximum

voltage applied to capacitors during measurement shall

be 2 volts rms at 120Hz at + 25°C. If the AC voltage

applied is less than one-half volt rms, no DC bias is re-

quired. Accuracy of the bridge shall be within ± 2%.

9. Life Test: Capacitors shall withstand rated DC voltage

applied at + 85°C for 1000 hours.

9.1 Following the life test, the dissipation factor shall not

exceed 1.5 times the initial requirement; the capacitance

change shall not exceed ±20%; the leakage current shall

not exceed 0.1 CV (3uA).

www.vishay.com

Document Number: 40052

Revision 04-Feb-03

Type 255D

Vishay Sprague

PERFORMANCE CHARACTERISTICS (Continued)

10. Solderability: Capacitors will meet the solderability

requirements of (MIL-STD-202, method 208),

ANSI/J-STD-002, Test B.

14. Capacitor Failure Mode: The predominant failure

mode for solid tantalum capacitors is increased leak-

age current resulting in a shorted circuit. Capacitor

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 Ta2O5 dielecric. For

additional information on leakage failure of solid tan-

talum chip capacitors, refer to Vishay Sprague Tech-

nical Paper, “Leakage Failure Mode in Solid Tantalum

Chip Capacitors.”

11. Resistance to Solder Heat: Capacitors will with stand

reflow soldering @ + 240°C + 5°C for 10 seconds max.

Capacitors should be allowed to remain at ambient

conditions for a period of up to 24 hours prior to

electrical measurements.

11.1 Following the resistance to solder heat test,

capacitance, be within ± 20% of the initial value, the

dissipation factor and the DC leakage current shall not

exceed the initial value.

15 Humidity Test: Capacitors shall withstand 500 hours at

+ 60°C, 90% to 95% relative humidity, with no voltage

applied.

12. Terminal Strength: Per IEC-384-3, minimum of 3N

15.1 Following the humidity test, capacitance change shall

notexceed-20%to+40%oftheinitialvalue,dissipation

factor shall not exceed 150% of the initial requirement;

leakage current shall not exceed 0.1CV (9uA).

shear force.

13. Flammability: Encapsulant materials meet UL94 VO

with an oxygen index of 32%.

GUIDE TO APPLICATION

2.2 The sum of the negative peak AC voltage plus the

applied DC voltage shall not allow a voltage reversal

exceeding 10% of the DC working voltage at + 25°C.

A-C Ripple Current: The maximum allowable ripple

current shall be determined from the formula:

R_ESR

I_rms

2.3 Temperature Derating: 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 as shown:

where,

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

the table in Paragraph Number 5 (Power

Dissipation).

DERATING FACTOR

TEMPERATURE

+25°C

1.0

0.9

0.4

R_ESR=The capacitor Equivalent Series Resistance at the

+ 85°C

specified frequency.

+ 105°C

A-C Ripple Voltage: The maximum allowable ripple

voltage shall be determined from the formula:

2.4 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. It is important

that the equivalent Irms value be established when

calculating permissible operating levels. (Power

Dissipation calculated using +25°C temperature rise).

R_ESR

V_rms

or, from the formula:

V_rms= I_rmsx Z

where,

CASE CODE

MAXIMUM PERMISSIBLE

POWER DISSIPATION

@ + 25C (Watts) IN FREE AIR

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

the table in Paragraph Number 5 (Power

Dissipation).

0.150

R_ESR=The capacitor Equivalent Series Resistance at the

specified frequency.

Reverse Voltage: These capacitors are capable of

withstanding peak voltages in the reverse direction

equal to 10% of the DC rating at + 25°C, 5% of the DC

rating at + 85°C and 1% of the DC rating at +105°C.

Z = The capacitor impedance at the specified frequency.

2.1 The sum of the peak AC voltage plus the DC voltage

shall not exceed the DC voltage rating of the capacitor.

Document Number: 40052

Revision 04-Feb-03

www.vishay.com

Type 255D

Vishay Sprague

GUIDE TO APPLICATION

Recommended rated working voltage guidelines:

Recommended Mounting Pad Geometries: Proper

mounting pad geometries are essential for successful

solder connections. These dimensions are highly

process sensitive and should be designed to minimize

component rework due to unacceptable solder joints.

The dimensional configurations shown are the

recommended pad geometries for both wave and reflow

soldering techniques. These dimensions are intended

to be a starting point for circuit board designers and

may be fine tuned if necessary based upon the

peculiarities of the soldering process and/or circuit

board design.

APPLICATION VOLTAGE

(V)

RECOMMENDED

CAPACITOR VOLTAGE

RATING (V)

2.5

4.0

6.0

4.0

6.3

10.0

Printed Circuit Board Materials: The 255D is

compatible with commonly used printed circuit board

materials (alumina substrates, FR4, FR5, G10, PTFE-

fluorocarbon and porcelainized steel).

REFLOW SOLDER PADS*

in inches [millimeters)

Attachment:

6.1 Solder Paste: The recommended thickness of the

solder paste after application is .007" ± .001" [.178mm

± 0.025mm]. Care should be exercised in selecting

the solder paste. The metal purity should be high as

practical. The flux (in the paste) must be active enough

to remove the oxides formed on the metallization prior

to the exposure to soldering heat. In practice this can

be aided by extending the solder preheat time at

temperatures below the liquidous of the solder.

6.2 Soldering: Capacitors can be attached by

conventional soldering techniques - vapor phase,

infrared reflow, wave soldering and hot plate methods.

The Soldering Profile chart shows maximum

recommended mended time/temperature conditions for

soldering. Attachment with a soldering iron is not

recommended due to the difficulty of controlling

temperature and time at temperature. If hand soldering

is necessary, the soldering iron must never come in

contact with the capacitor.

Pad

Case

Code

Width

(A)

Metallization

(B)

Separation

(C)

.118

[3.0]

.106

[2.70]

.175

[4.45]

Cleaning (Flux Removal) After Soldering: The 255D

is compatible with all commonly used solvents such as

TES, TMS, Prelete, Chlorethane, Terpene and aqueous

cleaning media. However, CFC/ODS products are not

used in the production of these devices and are not

recommended. Solvents containing methylene chloride

or other epoxy solvents should be avoided since these

will attack the epoxy encapsulation material.

REFLOW SOLDERING PROFILE

300

250

200

240°C Typical

250

200

130°C Typical

150

100

150

100

9.1 When using ultrasonic cleaning, the board may

resonate if the output power is too high. This vibration

can cause cracking or a decrease in the adherence-

of the termination. DO NOT EXCEED 9W/L @ 40kHz

for 2 minutes.

100

150

200

250

Time (Seconds)

www.vishay.com

Document Number: 40052

Revision 04-Feb-03

Type 255D

Vishay Sprague

TAPE AND REEL PACKAGING in inches [millimeters]

.157 ± .004

[4.0 ± .10]

Max.

.059 + .004 - 0.0

[1.5 + .10 - 0.0]

.069 ± .004

[1.75 ± .10]

.079 ± .002

[2.0 ± .050]

.024

[.600]

Max.

A₀

K₀

B₁Max.

Top Cover Tape

D₁Min.

Direction of Feed

A₀B₀K₀

TAPE SIZE

D₁(Min.)

B₁(Max.)

K (Max.)

12mm

0.323

[8.2]

0.059

0.217 ± 0 .002

[5.5 ± .05]

0.177

[4.5]

0.315

± 0 .004

[8.0 ± 1.0]

0.472

Notes: A₀B₀K₀are determined by component size.

The clearance between the component and the cavity

must be within .002" [.05mm] minimum to .020"

[.50mm] maximum for 8mm tape and .002" [.05mm]

minimum to .026" [.65mm] maximum for 12mm tape.

[1.5

]

+ 0.012

[12.0+.30

]

Tape and Reel Specifications: All case codes are

available on plastic embossed tape per EIA-481-1. Tape

reeling per IEC 286-3 is also available. Standard reel

diameter is 7" [178mm]. 13” [330mm] reels are available.

Standard orientation is with

the cathode (-) nearest to the

sprocket holes per EIA-481-1

and IEC 286-3.

Top Cover

Tape Thickness

The most efficient packaging quantities are full reel

increments on a given reel diameter. The quantities

shown allow for the sealed empty pockets required to be

in conformance with EIA-481-1. Reel size must be

specified in the Vishay Sprague^®part number.

Carrier

Embossment

Cathode (-)

Units Per Reel

Anode (+)

Tape

Width

Case

Code

Component 7" [178]

13" [330]

Reel

Pitch

Direction of Feed

12mm

4mm

500

2500

Document Number: 40052

Revision 04-Feb-03

www.vishay.com

255D157X06R3D2T045 [VISHAY]

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