14
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
earch.aspx
for details on testing, electrical, mechanical and
part number options.
PLEASE CONTACT THE DLA WEBSITE
http://www.landandmaritime.dla.mil/Programs/QmlQpl/ for
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
BP:
J = ±5%
K = ±10%
BX, BR & BQ:
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.
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
