Crane Aerospace & Electronics Power Solutions
FMCE-0328 EMI Input Filter
28 VOLT InPuT – 3 AMP
FEATuRES
• Operating temperature -55° to +125°C
Attenuation to 60 db at 500 kHz, typical
• Nominal 28 V input, -0.5 to 50 V operation
• Transient rating -0.5 to 80 V for 1 second
• Up to 3 A throughput current over the
full input voltage range of -0.5 to 50 V
• Compliant to
- MIL-STD-461C CE03
- MIL-STD-461C CS01
- MIL-STD-461D, E and F CE102
- MIL-STD-461D, E and F CS101
i
nPut
V
OLtAge
AnD
C
urrent
Input (V)
28
Current (A)
3
• Compatible with MIL-STD-704 A-E 28 VDC power bus
DESCRIPTIOn
Interpoint specifically designed the FMCE-0328™ EMI filter to
reduce the input line reflected ripple current of the following high
frequency DC/DC converters: MTR, MHF+ and MHV Series
converters. These filters are intended for use in 28 volt applica-
tions which must meet MIL-STD-461C CE03 and CS01 and/or
MIL-STD-461D, E and F CE102 and CS101 levels of conducted
emissions. At 50 VDC input (high line), the filter provides 150
watts of throughput power.
The FMCE-0328 filters are built using thick-film hybrid tech-
nology and are hermetically sealed in metal packages for military,
aerospace, and other high-reliability applications. Only ceramic
capacitors are used in the filters to ensure reliable high tempera-
ture operation.
The filters are offered with standard screening, “ES” screening,
or fully compliant to “883” MIL-PRF-38534 Class H screening.
Standard microcircuit drawings (SMD) are available.
MiL-StD n
OiSe
M
AnAgeMent
When used in conjunction with Interpoint converters, the FMCE-
0328 filters reduce input ripple current within the frequency band
of 100 kHz to 50 MHz. When used with an Interpoint converter,
performance exceeds the CEO3 test of MIL-STD-461C and
meets the requirements of CS01 of MIL-STD-461C. These filters
also meet CE102 and CS101 of MIL-STD-461D, E and F.
O
PerAting
t
eMPerAture
The filters are rated to operate, with no degradation of perfor-
mance, over the temperature range of -55°C to +125°C (as
measured at the baseplate). Above +125°C, current must be
derated as specified on the following page.
i
nSertiOn
L
OSS
Low DC resistance design results in a maximum power loss of
less than 2% with typical input voltage.
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • power@crane-eg.com
www.interpoint.com
Page 1 of 10
FMCE-0328 Rev D - 20100413
Crane Aerospace & Electronics Power Solutions
FMCE-0328 EMI Input Filter
28 VOLT InPuT – 3 AMP
Operating COnditiOns and CharaCteristiCs
Input Voltage Range
• Continuous -0.5 to 50 VDC
• Transient -0.5 to 80 V for 1 second
meChaniCal and envirOnmental
Size (maximum)
• Non-flanged, case E3
‣
1.460 x 1.130 x 0.330 (37.08 x 28.70 x 8.38 mm)
• Flanged, case G3
‣
2.005 x 1.130 x 0.330 inches (50.93 x 28.70 x 8.38 mm)
‣
See cases E3 and G3 for dimensions
Weight (maximum)
• 32 grams
Screening
Storage Temperature Range (Case)
• -65°C to +150°C
Case Operating Temperature (T
C
)
• -55°C to +125°C full power
Lead Soldering Temperature (10 sec per pin)
• 300°C
Electrostatic Discharge (ESD) Sensitivity per MIL-PRF-38534
• Classification 3B, 8000 V
Isolation (T
C
= 25°C)
• 100 megohm minimum at 500 V
• Any pin to case, except case pin
Input to Output Capacitance (T
C
= 25°C)
• 0.024 µF max, any pin to case
Derating Output Power/Current
• Linearly from 100% at 125°C to 80% at 135°C case
The FMCE-0328 EMI Input filter offers Standard, /ES or 883,
Class H, QML screening. See Screening Tables 1 and 2 for more
information.
EMI FILTER
+Vin
Case
Output
Input
Common Common
+Vout
DC/DC CONVERTER
+Vin
+Vout
RL
Case
Output
Input
Common Common
Chassis
ground
Multiple units
allowed up to
rated output
current of filter
RL
The case ground connection between the filter and the converter should be as
low an impedance as possible to minimize EMI. Direct contact of baseplate to
chassis ground provides the lowest impedance.
F
igure
1: c
onnection
D
iagram
Positive
Input
Positive
Output
Input
Common
Output
Common
F
igure
2: S
chematic
- Fmce-0328
www.interpoint.com
Page 2 of 10
FMCE-0328 Rev D - 20100413
Crane Aerospace & Electronics Power Solutions
FMCE-0328 EMI Input Filter
28 VOLT InPuT – 3 AMP
PIn OuT
Pin
1
2
3
4
5
1
Positive Input
Case Ground
Designation
Positive Output
Output Common
Input Common
Notes
1. All pins must be connected.
Dot on top of cover
indicates pin one.
1
5
BOTTOM VIEW
FMCE-0328
NON-FLANGED
3
AND FLANGED
4
2
Dotted line outlines flanged package option.
See cases E3 and G3 for dimensions.
F
igure
3: P
in
O
ut
www.interpoint.com
Page 3 of 10
FMCE-0328 Rev D - 20100413
Crane Aerospace & Electronics Power Solutions
FMCE-0328 EMI Input Filter
28 VOLT InPuT – 3 AMP
MODEL nuMbERIng kEy
Base Model
FMCE -
03
28
-
F
/ 883
DScc D
rawing
(5915)
10015-01HXC
10015-01HZC
DSCC nuMbERS
Fmce-0328
S
imilar
P
art
FMCE-0328/883
FMCE-0328-F/883
Output Current
Input Voltage
Case Option
(Non-flanged case has no designator in
this position)
Screening
(Standard screening has no designator
in this position.)
For exact specifications for a DSCC product, refer to the
DSCC drawing. DSCC drawings can be downloaded
from: http://www.dscc.dla.mil/programs/smcr
o
n
the lineS below
,
enter one Selection From unDer each category
to Determine the moDel number
.
MODEL SELECTIOn
CATEgORy
FMCE-0328
bASE MODEL AnD InPuT
VOLTAgE
“FMCE-0328” is the only
available selection
–
_______
CASE OPTIOn
1
(nOn-FLAngED leave blank)
F (FLAngED)
/
______
SCREEnIng
2
Standard (leave blank)
ES
883 (Class H, QML)
SELECTIOn
1. Case Options: For the standard case, case E3, leave the case option blank. For the flanged case option, case G3, insert the letter F in the
Case Option position.
2. Screening: For standard screening leave the screening option blank. For other screening options, insert the desired screening level. For
more information see Screening Tables 1 and 2.
www.interpoint.com
Page 4 of 10
FMCE-0328 Rev D - 20100413
Crane Aerospace & Electronics Power Solutions
FMCE-0328 EMI Input Filter
28 VOLT InPuT – 3 AMP
Electrical Characteristics: -55°C to +125°C T
C
, nominal Vin, unless otherwise specified.
MODEL
PArAMeter
inPut VOLtAge
nOiSe reJeCtiOn
DC reSiStAnCe (r
DC
)
CAPACitAnCe
At MAXiMuM Current
COnDitiOnS
trAnSient 1
sec
1,
2
500
k
H
z
1 MH
z
25°C
t
C
= -55 AnD +125°C
1
AnY Pin tO CASe
t
C
= 25°C
SteADY StAte
SteADY StAte
V
in
= -0.5 - 50 V
t
C
= 125°C
t
C
= 25°C
COntinuOuS
MIN
-0.5
-0.5
50
55
—
—
—
FMCE-0328
TYP
28
—
60
60
0.170
0.200
22,000
MAX
50
80
—
—
0.200
0.250
24,000
unitS
VDC
V
dB
Ω
pF
VDC
A
W
OutPut VOLtAge
3
OutPut Current
POWer DiSSiPAtiOn
At MAXiMuM Current
1
V
OUT
= V
IN
- I
IN
(R
DC
)
—
—
—
—
1.5
—
3
1.8
2.25
Notes
1. guaranteed by design, not tested.
2. 0.5 ohm source impedance.
3. Typical applications result in Vout within 2% of Vin.
www.interpoint.com
Page 5 of 10
FMCE-0328 Rev D - 20100413
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