VISHAY CWR11 Technical data

Solid Tantalum Chip Capacitors

TANTAMOUNT® Military, Surface Mount

MIL-PRF-55365/8 Qualified

FEATURES

• Molded case available in four case codes.

• Compatible with "High Volume" automatic pick and place

equipment.

• Weibull Failure Rates B and C.

• Termination: (H) Solder plate.

• Surge Current Option A

PERFORMANCE / ELECTRICAL CHARACTERISTICS

Operating Temperature: - 55°C to + 85°C. (To + 125°C with
voltage derating.)

Capacitance Range: 0.10µF to 100µF.

Capacitance Tolerance: ± 20%, ± 10% standard, ± 5%

available

Voltage Rating: 4 WVDC to 50 WVDC.

CWR11

Vishay Sprague

ORDERING INFORMATION

CWR11

TYPE

D

VOLTAGE

C = 4 V

D = 6 V

F = 10 V

H = 15 V

J = 20 V

K = 25 V

M = 35 V

N = 50 V

H

TERMINATION

FINISH

H = Solder Plate.

DIMENSIONS In inches [millimeters]

L

TH Min.

155

CAPACITANCE

This is expressed
in picofarads. The
first two digits are
the significant
figures. The third
is the number of
zeros to follow.

CAPACITANCE

TOLERANCE

M= ± 20%

K=± 10%

J=± 5%

TW

K

WEIBULL FAILURE

RATE 1%/1000 HOURS

H

B

SURGE CURRENT

B = 0.1

C = 0.01

W

A

OPTION

P

CASE
CODE

A

B

C

D

Document Number 40011
Revision 31-Jan-05

EIA

SIZE

3216

3528

6032

7343

L

0.126 ± 0.008
[3.2 ± 0.20]

0.138 ± 0.008
[3.5 ± 0.20]

0.236 ± 0.012
[6.0 ± 0.30]

0.287 ± 0.012
[7.3 ± 0.30]

For technical questions, contact [e-mail]

W

0.063 ± 0.008
[1.6 ± 0.20]

0.110 ± 0.008
[2.8 ± 0.20]

0.126 ± 0.012
[3.2 ± 0.30]

0.170 ± 0.012
[4.3 ± 0.30]

H

0.063 ± 0.008
[1.6 ± 0.20]

0.075 ± 0.008
[1.9 ± 0.20]

0.098 ± 0.012
[2.5 ± 0.30]

0.110 ± 0.012
[2.8 ± 0.30]

P

0.031 ± 0.012
[0.80 ± 0.30]

0.031 ± 0.012
[0.80 ± 0.30]

0.051 ± 0.012
[0.80 ± 0.30]

0.051 ± 0.012

[1.3 ± 0.30]

TW

0.047 ± 0.004
[1.2 ± 0.10]

0.087 ± 0.004
[2.2 ± 0.10]

0.087 ± 0.004
[2.2 ± 0.10]

0.095 ± 0.004
[2.4 ± 0.10]

TH (Min.)

0.028
[0.70]

0.028
[0.70]

0.039
[1.0]

0.039
[1.0]

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CWR11

Vishay Sprague

RATINGS AND CASE CODES

µF

0.10

0.15

0.22

0.33

0.47

0.68

1.0

1.5

2.2

3.3

4.7

6.8

10

15

22

33

47

68

100

4 V

A

A

B

B

B

C

D

D

6 V

A

A

A

B

B

B

C

C

D

D

10 V

A

A

A

B

B

B

C

D

D

15 V

A

A

A

B

B

B

C

D

D

20 V

A

A

A

B

B

B

C

C

D

D

25 V

A

A

B

B

B

C

C

C

D

D

D

35 V

A

A

A

A

B

B

B

C

C

C

D

D

50 V

A

B

B

B

C

C

C

D

D

D

D

CONSTRUCTION MARKING

Cathode

Termination ( - )

Tantalum
Capacitor

Element

CONSTRUCTION MARKING

Polarity Stripe ( + )

Epoxy Case

Anode Weld

Positive

Termination

Polarity

Band

B, C, and D

Cases

"JAN" Brand

Capacitance

J

Voltage

Polarity Band

105

35

Capacitance Code, pf

2

Vishay Sprague Logo

STANDARD RATINGS

CAPACITANCE

(µF)

CASE

CODE

PART NUMBER

Max. DC Leakage (µA) @

+ 85°C

4 WVDC @ + 85°C, SURGE = 5.2 V . . . 2.7 WVDC @ + 125°C, SURGE = 3.4 V

2.2 A CWR11CH225#* 0.5 5 6 6 9 9 8

4.7 A CWR11CH475#* 0.5 5 6 6 9 9 8

6.8 B CWR11CH685#* 0.5 5 6 6 9 9 5.5
10 B CWR11CH106#* 0.5 5 6 6 9 9 4
15 B CWR11CH156#* 0.6 6 7.2 6 6 9 3.5
33 C CWR11CH336#* 1.3 13.0 15.6 6 9 9 2.2
68 D CWR11CH686#* 2.7 27 32.4 6 9 9 1.1

100 D CWR11CH107#* 4 40 48 8 12 12 0.9

# = Tolerance: J = ± 5%, K = ± 10%, M = ± 20%. * = Weibull Failure Rate (%/1,000 hours): B = 0.1, C = 0.01, D = 0.001

Max. DF 120 Hz (%) @

+ 25°C+ 125°C+ 25°C

+ 85°C

+ 125°C

- 55°C

105J

"JAN" Brand

Max. ESR
@ + 25°C

100kHz
(Ohms)

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For technical questions, contact [e-mail]

Document Number 40011

Revision 31-Jan-05

Vishay Sprague

STANDARD RATINGS

Max. DF 120 Hz (%) @

CAPACITANCE

(µF)

1.5 A CWR11DH155#* 0.5 5 6 6 9 9 8

2.2 A CWR11DH225#* 0.5 5 6 6 6 9 8

3.3 A CWR11DH335#* 0.5 5 6 6 9 9 8

4.7 B CWR11DH475#* 0.5 5 6 6 9 9 5.5

6.8 B CWR11DH685#* 0.5 5 6 6 6 9 4.5
10 B CWR11DH106#* 0.6 6 7.2 6 9 9 3.5
15 C CWR11DH156#* 0.9 9.0 10.8 6 6 9 3.0
22 C CWR11DH226#* 1.4 14.0 16.8 6 9 9 2.2
47 D CWR11DH476#* 2.8 28 33.6 6 6 9 1.1
68 D CWR11DH686#* 4.3 43 51.6* 6 9 9 0.9

1 A CWR11FH105#* 0.5 5 6 4 6 6 10

1.5 A CWR11FH155#* 0.5 5 6 6 6 9 8

2.2 A CWR11FH225#* 0.5 5 6 6 9 9 8

3.3 B CWR11FH335#* 0.5 5 6 6 9 9 5.5

4.7 B CWR11FH475#* 0.5 5 6 6 9 9 4.5

6.8 B CWR11FH685#* 0.7 7 8.4 6 9 9 3.5

15 C CWR11FH156#* 1.5 15 18.0 6 6 9 2.5
33 D CWR11FH336#* 3.3 33 39.6 6 6 9 1.1
47 D CWR11FH476#* 4.7 47 56.4 6 9 9 0.9

0.68 A CWR11HH684#* 0.5 5 6 4 6 6 12
1 A CWR11HH105#* 0.5 5 6 4 6 6 10

1.5 A CWR11HH155#* 0.5 5 6 6 9 9 8

2.2 B CWR11HH225#* 0.5 5 6 6 9 9 5.5

3.3 B CWR11HH335#* 0.5 5 6 6 8 9 5

4.7 B CWR11HH475#* 0.7 7 8.4 6 9 9 4
10 C CWR11HH106#* 1.6 16 19.2 6 8 9 2.5
22 D CWR11HH226#* 3.3 33 39.6 6 8 9 1.1
33 D CWR11HH336#* 5.3 53 63.6 6 9 9 0.9

0.47 A CWR11JH474#* 0.5 5 6 4 6 6 14

0.68 A CWR11JH684#* 0.5 5 6 4 6 6 12
1 A CWR11JH105#* 0.5 5 6 4 6 6 10

1.5 B CWR11JH155#* 0.5 5 6 6 9 9 6

2.2 B CWR11JH225#* 0.5 5 6 6 8 9 5

3.3 B CWR11JH335#* 0.7 7 8.4 6 9 9 4

4.7 C CWR11JH475#* 1.0 10 12 6 8 9 3.0

6.8 C CWR11JH685#* 1.4 14 16.8 6 9 9 2.4
15 D CWR11JH156#* 3 30 36 6 8 9 1.1
22 D CWR11JH226#* 4.4 44 52.8 6 9 9 0.9

0.33 A CWR11KH334#* 0.5 5.0* 6 4 6 6 15

0.47 A CWR11KH474#* 0.5 5.0* 6 4 6 6 14

0.68 B CWR11KH684#* 0.5 5.0* 6 4 6 6 7.5
1 B CWR11KH105#* 0.5 5.0* 6 4 6 6 6.5

1.5 B CWR11KH155#* 0.5 5.0* 6 6 8 9 6.5

2.2 C CWR11KH225#* 0.6 6.0 7.2 6 9 9 3.5

3.3 C CWR11KH335#* 0.9 9.0 10.8 6 8 9 2.5

4.7 C CWR11KH475#* 1.2 12 14.4 6 9 9 2.5

6.8 D CWR11KH685#* 1.7 17.0* 20.4 6 9 9 1.4
10 D CWR11KH106#* 2.5 25.0* 30 6 8 9 1.2
15 D CWR11KH156#* 3.8 38.0* 45.6 6 9 9 1

0.1 A CWR11MH104#* 0.5 5 6 4 6 6 24

0.15 A CWR11MH154#* 0.5 5 6 4 6 6 21

0.22 A CWR11MH224#* 0.5 5 6 4 6 6 18

# = Tolerance: J = ± 5%, K = ± 10%, M = ± 20% *= Weibull Failure Rate (%/1,000 hours): B = 0.1, C = 0.01, D = 0.001

CASE
CODE

PART NUMBER

6 WVDC @ + 85°C, SURGE = 8 V . . . 4 WVDC @ + 125°C, SURGE = 5 V

10 WVDC @ + 85°C, SURGE = 13 V . . . 7 WVDC @ + 125°C, SURGE = 8 V

15 WVDC @ + 85°C, SURGE = 20 V . . . 10 WVDC @ + 125°C, SURGE = 12 V

20 WVDC @ + 85°C, SURGE = 26 V . . . 13 WVDC @ + 125°C, SURGE = 16 V

25 WVDC @ + 85°C, SURGE = 32 V . . . 17 WVDC @ + 125°C, SURGE = 20 V

35 WVDC @ + 85

°C, SURGE = 46 V . . . 23 WVDC @ + 125°C, SURGE = 28 V

Max. DC Leakage (µA) @

+ 25°C

+ 125°C+ 85°C

+ 25

°C

+ 85°C

+ 125°C

- 55

CWR11

Max. ESR

@ + 25°C

°C

100kHz

(Ohms)

Document Number 40011
Revision 31-Jan-05

For technical questions, contact [e-mail]

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49

CWR11

Vishay Sprague

STANDARD RATINGS

CAPACITANCE

µF)

(

0.33 A CWR11MH334#* 0.5 5 6 4 6 6 15

0.47 B CWR11MH474#* 0.5 5 6 4* 6 6 10

0.68 B CWR11MH684#* 0.5 5 6 4 6 6 8
1 B CWR11MH105#* 0.5 5 6 4 6 6 6.5

1.5 C CWR11MH155#* 0.5 5 6 6 8 9 4.5

2.2 C CWR11MH225#* 0.8 8 9.6 6 8 9 3.5

3.3 C CWR11MH335#* 1.2 12 14.4 6 8 9 2.5

4.7 D CWR11MH475#* 1.7 17 20.4 6 8 9 1.5

6.8 D CWR11MH685#* 2.4 24 28.8 6 9 9 1.3

0.1 A CWR11NH104#* 0.5 5 6 4 6 6 22

0.15 B CWR11NH154#* 0.5 5 6 4 6 6 17

0.22 B CWR11NH224#* 0.5 5 6 4 6 6 14

0.33 B CWR11NH334#* 0.5 5 6 4 6 6 12

0.47 C CWR11NH474#* 0.5 5 6 4 6 6 8

0.68 C CWR11NH684#* 0.5 5 6 4 6 6 7
1 C CWR11NH105#* 0.5 5 6 4 6 6 6

1.5 D CWR11NH155#* 0.8 8 9.6 6 8 9 4

2.2 D CWR11NH225#* 1.1 11 13.2 6 8 9 2.5

3.3 D CWR11NH335#* 1.7 17 20.4 6 9 9 2

4.7 D CWR11NH475#* 2.4 24 28.8 6 9 9 1.5

# = Tolerance: J = ± 5%, K = ± 10%, M = ± 20%.
* = Weibull Failure Rate (%/1,000 hours): B = 0.1, C = 0.01, D = 0.001

CASE

CODE - 55°C

35 WVDC @ + 85°C, SURGE = 46 V . . . 23 WVDC @ + 125°C, SURGE = 28 V

50 WVDC @ + 85°C, SURGE = 65 V . . . 33 WVDC @ + 125°C, SURGE = 40 V

Max. DC Leakage (µA) @

+ 125°C+ 85°CPART NUMBER* + 25°C

Max. DF 120 Hz (%) @

+ 85°C

+ 25°C

+ 125°C

Max. ESR

@ + 25

°C

100kHz
(Ohms)

PERFORMANCE CHARACTERISTICS

1. Operating Temperature: Capacitors are designed to

operate over the temperature range of - 55°C to + 85°C.

1.1 Capacitors may be operated to + 125°C with voltage

derating to two-thirds the + 85°C rating.

+ 85°C Rating + 125°C Rating

Working

Voltage

(V)

4

6.3
10
16
20
25
35

Surge

Voltage

(V)

5.2
8

13
20
26
32
46

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

maximum operating voltage for continuous duty at the
rated temperature.

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

voltage to which the capacitors may be subjected
under 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.

3.2 Following the surge voltage test, the dissipation factor

Working

Voltage

(V)

2.7
4
7

10
13
17
23

Surge

Voltage

(V)

3.4
5
8

12
16
20
28

and the leakage current shall meet the initial require­ments; the capacitance shall not have changed
more than ± 10%.

4. Capacitance Tolerance: The capacitance of all

capacitors shall be within the specified tolerance
limits of the normal rating.

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 reversal of polarity due to the AC component.
The maximum voltage applied to capacitors during
measurement shall be 2 volts rms at 120 Hz at
+ 25°C. If the AC voltage applied is less than one­half volt rms, no DC bias is required. Accuracy of the
bridge shall be within ± 2%.

5. Capacitance Change With Temperature: The

capacitance change with temperature shall not
exceed the following percentage of the capacitance
measured at + 25°C:

- 55°C

- 10%

+ 85°C

+ 10%

+ 125°C
+ 12%

6. Dissipation Factor: The dissipation factor,

determined from the expression 2πfRC, shall not
exceed values listed in the Standard Ratings Table.

6.1 Measurements shall be made by the bridge method

at, or referred to, a frequency of 120 Hz and a
temperature of + 25°C.

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Document Number 40011

Revision 31-Jan-05

CWR11

Vishay Sprague

PERFORMANCE CHARACTERISTICS (Continued)

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 a 1000 ohm resistor connected in series
with the capacitor under test to limit the charging
current. Leakage current shall then be measured.

Note that the leakage current varies with temperature and
applied voltage. See graph below for the appropriate
adjustment factor.

TYPICAL LEAKAGE CURRENT FACTOR RANGE

100

+ 125°C

+ 85°C

10

+ 55°C

+ 25°C

1.0

0°C

change shall not exceed ± 10%; the leakage
current shall not exceed 125% of the initial
requirement.

9. Vibration Tests: Capacitors shall be subjected to

vibration tests in accordance with the following
criteria.

9.1 Capacitors shall be secured for test by means of a

rigid mounting using suitable brackets.

9.2 Low Frequency Vibration: Vibration shall consist

of simple harmonic motion having an amplitude of

0.03" [0.76mm] and a maximum total excursion of

0.06" [1.52mm], in a direction perpendicular to the
major axis of he capacitors.

9.2.1 Vibration frequency shall be varied uniformly

between the approximate limits of 10 Hz to 55 Hz
during a period of approximately one minute,
continuously for 1.5 hours.

9.2.2 An oscilloscope or other comparable means shall

be used in determining electrical intermittency
during the final 30 minutes of the test. The AC
voltage applied shall not exceed 2 volts rms.

9.2.3 Electrical tests shall show no evidence of

intermittent contacts, open circuits or short circuits
during these tests.

0.1

Leakage Current Factor

- 55°C

0.01

0.001

0 10 20 30 40 50 60 70 80 90 100

Percent of Rated Voltage

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.

7.3 At + 125

°C, the leakage current shall not exceed 12

times the value listed in the Standard Ratings Table.

8. Life Test: Capacitors shall withstand rated DC

voltage applied at + 85°C or two-thirds rated voltage
applied at + 125°C for 2000 hours.

9.2.4 Following the low frequency vibration test,

capacitors shall meet the original requirements for
capacitance, dissipation factor and leakage current.

9.3 High Frequency Vibration: Vibration shall

consist of a simple harmonic motion having an
amplitude of 0.06" [1.52] ± 10% maximum total
excursion or 20 g peak whichever is less.

9.3.1 Vibration frequency shall be varied logarithmically

from 50 Hz to 2000 Hz and return to 50 Hz during
a cycle period of 20 minutes.

9.3.2 The vibration shall be applied for 4 hours in each

of 2 directions, parallel and perpendicular to the
major axis of the capacitors.

9.3.3 Rated DC voltage shall be applied during the

vibration cycling.

9.3.4 An oscilloscope or other comparable means shall

be used in determining electrical intermittency
during the last cycle. The AC voltage applied shall
not exceed 2 volts rms.

9.3.5 Electrical tests shall show no evidence of

intermittent contacts, open circuits or short circuits
during these tests.

8.1 Following the life test, the dissipation factor shall

meet the initial requirement; the capacitance

Document Number 40011
Revision 31-Jan-05

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9.3.6 There shall be no mechanical damage to these

capacitors as a result of these tests.

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CWR11

Vishay Sprague

PERFORMANCE CHARACTERISTICS (Continued)

9.3.7 Following the high frequency vibration test,

capacitors shall meet the original limits for
capacitance, dissipation factor and leakage
current.

10. Acceleration Test:

10.1 Capacitors shall be rigidly mounted by means of

suitable brackets.

10.2 Capacitors shall be subjected to a constant

acceleration of 100 g for a period of 10 seconds in
each of 2 mutually perpendicular planes.

10.2.1 The direction of motion shall be parallel to and

perpendicular to the longitudinal axis of the
capacitors.

10.3 Rated DC voltage shall be applied during

acceleration test.

10.3.1 An oscilloscope or other comparable means shall

be used in determining electrical intermittency
during test. The AC voltage applied shall not
exceed 2 volts rms.

10.4 Electrical tests shall show no evidence of

intermittent contacts, open circuits or short circuits
during these tests.

10.5 There shall be no mechancial damage to these

capacitors as a result of these tests.

10.6 Following the acceleration test, capacitors shall

meet the original limits for capacitance, dissipation
factor and leakage current.

11. Shock Test:

11.1 Capacitors shall be rigidly mounted by means of

suitable brackets. The test load shall be
distributed uniformly on the test platform to
minimize the effects of unbalanced loads.

11.1.1 Test equipment shall be adjusted to produce a

shock of 100 g peak with the duration of 6 mS and
sawtooth waveform at a velocity change of 9.7 ft./
sec.

11.2 Capacitors shall be subjected to 3 shocks applied

in each of 3 directions corresponding to the 3
mutually perpendicular axes of the capacitors.

11.3 Rated DC voltage shall be applied during test.

11.3.1 An oscilloscope or other comparable means shall

be used in determining electrical intermittency
during tests. The replacement voltage applied
shall not exceed 2 volts rms.

11.4 Electrical tests shall show no evidence of

intermittent contacts, open circuits or short circuits
during these tests.

11.5 There shall be no mechanical damage to these

capacitors as a result of these tests.

11.6 Following the shock test, capacitors shall meet the

original limits for capacitance, dissipation factor
and leakage current.

12. Moisture Resistance:

12.1 Capacitors shall be subjected to temperature

cycling at 90% to 95% relative humidity, from
+ 25°C to + 65°C to + 25°C (+ 10°C, - 2°C) over a
period of 8 hours per cycle for 1000 hours.

12.2 Following the moisture resistance test, the leakage

current and dissipation factor shall meet the initial
requirements, and the change in capacitance shall
not exceed ± 10%.

13. Thermal Shock:

13.1 Capacitors shall be conditioned prior to

temperature cycling for 15 minutes at + 25°C, at
less than 50% relative humidity and a barometric
pressure at 28 to 31 inches.

13.2 Capacitors shall be subjected to thermal shock in a

cycle of exposure to ambient air at - 65°C (+ 0°C,

- 5°C) for 30 minutes, then + 25°C (+10°C, - 5°C)
for 5 minutes, then + 125°C (+ 3°C, - 0°C) for 30
minutes, then + 25°C (+ 10°C, - 5°C) for 5 minutes
for 5 cycles.

13.3 Capacitors shall show no evidence of harmful or

extensive corrosion, obliteration of marking or
other visible damage.

13.4 Following the thermal shock test, capacitors shall

meet the original requirements for leakage current
and dissipation factor, capacitance change shall
not exceed ± 5% of the original measured value.

14. Soldering Compatibility:

14.1 Resistance to Solder Heat: Capacitors will

withstand exposure to + 260ºC + 5ºC for 10
seconds.

14.1.1 Following the resistance to soldering heat test,

capacitance, dissipation factor and DC leakage
current shall meet the initial requirement.

14.2 Solderability: Capacitors will meet the

solderability requirements of ANSI / J-STD-002,
Test B (MIL-STD-202, method 208 and Test S).

14.3 Solderability:

solderability requirements of (MIL-STD-202
method 208), ANSI/J-STD-002, Test B.

Capacitors will meet the

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Document Number 40011

Revision 31-Jan-05

CWR11

Vishay Sprague

GUIDE TO APPLICATION

1. A-C Ripple Current: The maximum allowable ripple

current shall be determined from the formula:

P

=

I

rms

where,

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

in the table in Paragraph Number 5 (Power
Dissipation).

= The capacitor Equivalent Series Resistance

R

ESR

at the specified frequency.

2. A-C Ripple Voltage: The maximum allowable ripple

voltage shall be determined from the formula:

V

rms

or, from the formula:

V

= I

rms

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

given in the table in Paragraph Number 5
(Power Dissipation).

= The capacitor Equivalent Series Resistance

R

ESR

at the specified frequency.

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.

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.

3. 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
+ 125°C.

4. 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:

Temperature Derating Factor

+ 25°C
+ 85°C

+ 125°C

5. Power Dissipation: Power dissipation will be

affected by the heat sinking capability of the mounting

R

= Z

x Z where,

rms

ESR

P
R

ESR

1.0

0.9

0.4

surface. Non-sinusoidal ripple current may produce
heating effects which differ from those shown. It is

Irms

important that the equivalent

value be
established when calculating permissible operating
levels. (Power Dissipation calculated using + 25°C
temperature rise.)

Maximum Permissible

Case Code

A

B

C

D

Power Dissipation

(Watts) in free air

@ + 25

0.075

0.085

0.110

0.150

°C

6. Printed Circuit Board Materials: Type CWR11

is compatible with commonly used printed circuit
board materials (alumina substrates, FR4, FR5,
G10, PTFE-fluorocarbon and porcelanized steel).

7. Attachment:

7.1 Solder Paste: The recommended thickness of the

solder paste after application is .007" ± .001"
[.178mm ± .025mm]. Care should be exercised in
selecting the solder paste. The metal purity should
be as 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 state of the solder.

7.2 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 time/temperature
conditions for soldering. Attachment with a
soldering iron is not recommended due to the
difficulty of controlling temperature and time at
temperature.

8. Cleaning (Flux Removal) After Soldering: The

CWR11 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.

8.1 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.

Document Number 40011
Revision 31-Jan-05

For technical questions, contact [e-mail]

www.vishay.com

53

CWR11

Vishay Sprague

GUIDE TO APPLICATION (Continued)

SOLDERING PROFILE

Recommended Solder Profile — Wave Solder

5 - 10 Sec.

300

Max. Recommended

260°C

250

200

150

100

Temperature Degrees Centigrade

130°C

50

0

0 50 100 150 200 250

Time (Seconds)

300

250

200

150

100

50

0

Temperature Degrees Centigrade

Recommended Solder Profile — Reflow

300

250

200

150

130

100

50

0

0 50 100 150 200 250

245°C Typical

°C Typical

Time (Seconds)

9. 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.

300

250

200

150

100

50

0

RECOMMENDED MOUNTING PAD GEOMETRIES In inches [millimeters]

Wave Solder Pads Reflow Solder Pads

Case

Code

A

B

C

D

B

A

(Min.)

0.034
[0.87]

0.061
[1.54]

0.061
[1.54]

0.066
[1.68]

D

C

Pad Dimensions

E

B

(Nom.)C(Nom.)D(Nom.)E(Nom.)

0.085
[2.15]

0.085
[2.15]

0.106
[2.70]

0.106
[2.70]

0.053
[1.35]

0.065
[1.65]

0.124
[3.15]

0.175
[4.45]

0.222
[5.65]

0.234
[5.95]

0.337
[9.55]

0.388
[9.85]

0.048
[1.23]

0.048
[1.23]

0.050
[1.28]

0.050
[1.28]

A

Case
Code

A

B

C

D

B

Pad Dimensions

A

(Min.)B(Nom.)C(Nom.)D(Nom.)E(Nom.)

0.071
[1.80]

0.110
[2.80]

0.110
[2.80]

0.118
[3.00]

0.085
[2.15]

0.085
[2.15]

0.106
[2.70]

0.106
[2.70]

D

EC

A

0.053
[1.35]

0.065
[1.65]

0.124
[3.15]

0.175
[4.45]

0.222
[5.65]

0.234
[5.95]

0.337
[9.55]

0.388
[9.85]

0.048
[1.23]

0.048
[1.23]

0.050
[1.28]

0.050
[1.28]

www.vishay.com
54

For technical questions, contact [e-mail]

Document Number 40011

Revision 31-Jan-05

TAPE AND REEL PACKAGING In inches [millimeters]

K

Max.

0.024

[0.600]

Max.

Max.

B

1

K

0

Top Cover Tape

0.059 + 0.004 - 0.0
[1.5 + 0.10 - 0.0]

0.157 ± 0.004

[4.0

A

0

B

0

P

Direction of Feed

± 0.10]

Vishay Sprague

0.069 ± 0.004

0.079 ± 0.002
[2.0 ± 0.050]

[1.75 ± 0.10]

CWR11

F

W

D1 Min.

TAPE

SIZE

8mm

12mm

B

1

(Max.)

0.165
[4.2]

0.323
[8.2]

D

1

(Min.)

0.039
[1.0]

0.059
[1.5]

F

0.138 ± 0.002
[3.5 ± 0.05]

0.217 ± 0.002
[5.5 ± 0.05]

Carrier

K

(Max.)

0.094
[2.4]

0.177
[4.5]

Standard orientation is with
the cathode (-) nearest to the
sprocket holes per EIA-481-1
and IEC 286-3.

Top Cover
Tape Thickness

Embossment

Cathode (-)

Direction of Feed

0.157 ± 0.004

0.315 ± 0.004

Anode (+)

P

[4.0 ± 1.0]

[8.0 ± 1.0]

W

0.315 ± 0.012
[8.0 ± 0.30]

0.472 ± 0.012

[12.0 ± 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 13" [330mm].
7" [178mm] reels are available.

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 and
packaging must be specified at the time of order
placement.

Case

Code

A

B

C

D

A0B0K

0

Notes: A0B0K0 are determined by component size.

The clearance between the component and the cavity
must be within 0.002" [0.05mm] minimum to 0.020"
[0.50mm] maximum for 8mm tape and 0.002" [0.05mm]
minimum to 0.026" [0.65mm] maximum for 12mm
tape.

Units Per Reel

Tape

Width

8mm

8mm

12mm

12mm

Component

Pitch

4mm

4mm

8mm

8mm

7" [178]

Reel

2000

2000

500

500

13" [330]

Reel

9000

8000

3000

2500

Document Number 40011
Revision 31-Jan-05

For technical questions, contact [e-mail]

www.vishay.com

55