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SMPS Stacked MLC Capacitors

(SM Style) SM Military Styles MIL-PRF-49470

AVX IS QUALIFIED TO MIL-PRF-49470/1

AND MIL-PRF-49470/2

The SMPS capacitors are designed for high current, high-

power and high-temperature applications. These capacitors

have very low ESR (Equivalent Series Resistance) and ESL

(Equivalent Series Inductance). SMPS Series capacitors offer

design and component engineers a proven technology

specifically designed for programs requiring high reliability

performance in harsh environments.

MIL-PRF-49470 SMPS Series capacitors are primarily used

in input/output filters of high-power and high-voltage power

supplies as well as in bus filters and DC snubbers for high

power inverters and other high-current applications. These

capacitors are available with through-hole and surface

mount leads. The operating temperature is -55°C to +125°C.

The MIL-PRF-49470 capacitors are preferred over the

DSCC drawing 87106 capacitors. MIL-PRF-49470 specifi-

cation was created to produce a robust replacement for

DSCC 87106. MIL-PRF-49470 offers two product levels.

Level “B” is the standard reliability. Level “T” is the high relia-

bility suitable for space application.

AVX is qualified to supply MIL-PRF-49470/1 parts. These

are unencapsulated ceramic dielectric, switch mode power

supply capacitors. AVX is also qualified to supply MIL-PRF-

49470/2 parts. These are encapsulated ceramic dielectric,

switch mode power supply capacitors.

PLEASE CONTACT THE DLA WEBSITE

http://www.landandmaritime.dla.mil/programs/milspec/DocS

part number options.

PLEASE CONTACT THE DLA WEBSITE

the latest QPL (Qualified Products List).

M49470

Performance

specification

indicating

MIL-PRF-49470

R

Characteristic

P = BP

Q = BQ

R = BR

X = BX

01

Performance

specification

sheet number

01 – indicating

MIL-PRF-49470/1

02 – indicating

MIL-PRF-49470/2

474

Capacitance

K

Capacitance

Tolerance

K = 10%

M = 20%

C

Rated Voltage

Z = 25V

A = 50V

B = 100V

C = 200V

E = 500V

N

Configuration

(Lead Style)

See chart for

Lead configurations

HOW TO ORDER

LEAD CONFIGURATION

millimeters (inches)

For “T” level parts, replace the “M” in the pin with “T” (for

example M49470R01474KCN becomes T49470R01474KCN)

MIL-PRF-49470 contains additional capacitors that are not

available in 87106, such as additional lead configurations

and lower profile parts.

"T" level for 25V under qualification. Availability and updates

upon request.

On the pages to follow is the general dimensional outline

along with a cross reference from 87106 parts to MIL-PRF-

49470 parts.

Not RoHS Compliant

Symbol (Last digit of military PN,

Lead Style

Height Profile

Formed lead length,

12th digit of AVX PN)

(Dimension A)

L

N

N (straight)

Standard

N/A

L

L (formed)

Standard

1.78 ± 0.25 (0.070 ± 0.010)

M

L (formed)

Standard

1.14 ± 0.25 (0.045 ± 0.010)

J

J (formed)

Standard

1.78 ± 0.25 (0.070 ± 0.010)

K

J (formed)

Standard

1.14 ± 0.25 (0.045 ± 0.010)

A

N (straight)

Low

N/A

B

L (formed)

Low

1.78 ± 0.25 (0.070 ± 0.010)

D

L (formed)

Low

1.14 ± 0.25 (0.045 ± 0.010)

C

J (formed)

Low

1.78 ± 0.25 (0.070 ± 0.010)

F

J (formed)

Low

1.14 ± 0.25 (0.045 ± 0.010)

Note: Lead options available marked with a “-” as a place holder. See lead configuration column for available lead options to replace the “-”.

Performance of SMPS capacitors can be simulated by downloading SpiCalci software program -

http://www.avx.com/SpiApps/default.asp#spicalci