FMC EMI Input Filters

Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filters
28 VOLT INPUT – 2.7 AMP
FEATURES
• –55°C to +125°C operation
• Up to 50 dB attenuation
400 kHz to 50 MHz
• Transient suppression
• Compliant to
MIL-STD-461C, CE03
and MIL-STD-461D, CE102
• Compatible with
MIL-STD-704 A-E
DC power bus
MODEL
FMC-461
FMC-461NT
2.7 Amp
2.7 Amp
DESCRIPTION
The FMC-461™ and SFMC EMI filters have been specifically
designed to reduce the input line reflected ripple current of
Interpoint’s MHF, MTR, MTO, MHV, MHF+, MHD, MTW, MHE, and
MLP series of DC/DC converters including their space counterparts.
The filter can be used to filter combinations of the lower power
converters up to two MTR/SMTR series converters and a single
MFL/SMFL series converters. They are intended for use in applications which have high frequency switch-mode DC/DC converters
and which must meet MIL-STD-461C or MIL-STD-461C levels of
conducted and radiated noise.
The FMC/SFC filters are built using thick-film hybrid technology and
is hermetically sealed in metal packages for military, aerospace, and
other high-reliability applications. The filters use only ceramic
capacitors for reliable high temperature operation.
MIL-STD NOISE MANAGEMENT
When used in conjunction with Interpoint converters, the FMC-461,
FMC-461 NT and SFMC-461 filters reduce input ripple current within
the frequency band of 100 kHz to 50 MHz. This gives the
filter/converter combination a performance which exceeds the
CEO3 test of MIL-STD-461C and the CE102 test of MIL-STD-461D.
Typical FMC-461 filter frequency response and output impedance
behavior are shown in Figures 4 and 5. CEO3 performance of a
typical converter with the FMC-461 filter connected is shown in
Figure 3.
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • [email protected]
www.craneae.com
TRANSIENT SUPPRESSION - FMC-461 ONLY
The FMC-461 filter also features an optional fast-reacting (1 pico
second) transient suppressor (transorb) which begins clamping the
input voltage at approximately 47 VDC, protecting the DC/DC
converter from damage from induced line transients.
The FMC-461NT does not have the transorb option.
OPERATING TEMPERATURE
The filters are rated to operate, with no degradation of performance,
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.
INSERTION LOSS
The maximum DC insertion loss for the FMC/SFMC filters (at a load
of 22 watts) represents a power loss of less than 2% at typical input
voltage.
LAYOUT REQUIREMENT
The case pin, and ideally the case, should be tied to the case of the
converter through a low-inductance connection.
Page 1 of 10
Rev C - 20060508
Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filters
28 VOLT INPUT – 2.7 AMP
OPERATING CONDITIONS AND CHARACTERISTICS
MECHANICAL AND ENVIRONMENTAL
Input Voltage Range
• 0 to 50 VDC continuous
• 16 to 40 VDC continuous for 40 W load
Lead Soldering Temperature (10 sec per pin)
• 300°C
Storage Temperature Range (Case)
• –65°C to +150°C
Case Operating Temperature (Tc)
• –55°C to +125°C full power
Derating Output Power/Current
• DC input and output current
Derate linearly from 100% at 125°C to 0%
at 135°C case
Input to Output Capacitance
• 0.038 μF max, any pin to case
Isolation
• 100 megohm minimum at 500 V
• Any pin to case, except case pin
277
IN5649A
Size (maximum)
Non-flanged
2.125 x 1.125 x 0.400 inches (53.98 x 28.58 x 10.16 mm)
See case H1 for dimensions.
Flanged
2.910 x 1.125 x 0.400 inches (73.91 x 28.58 x 10.16 mm)
See case K2 for dimensions.
Weight (maximum)
48 grams typical
Screening
Standard, ES, or 883 (Class H). See “883, Class H, QML Products – Element
Evaluation” and “883, Class H, QML Products – Environmental
Screening” for more information.
H
35.6
H
Positive
Output
Positive
Input
6
1
6
68
F
1
F
F
4.7
1
Output
Common
Input
Common
1 3300 pF / 500 V
FMC-461
FMC-461/883
6800 pF / 500 V
(4 times)
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.
FIGURE 1: SCHEMATIC – TYPICAL VALUES
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Page 2 of 10
Rev C - 20060508
Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filters
28 VOLT INPUT – 2.7 AMP
PINS NOT IN USE
PIN OUT
Pin
1
2
3
4
5
Case ground (pin 3)
Designation
Positive Input
Positive Output
Case Ground
Output Common
Input Common
optimum filtering
Dot on top of package indicates pin one
1
2
BOTTOM VIEW
FMC
NON-FLANGED AND FLANGED
5
3
4
Dotted line outlines flanged package option.
See case H1 and case K2 for dimensions.
FIGURE 2: PIN OUT
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Connect to case ground for
Page 3 of 10
Rev C - 20060508
Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filters
28 VOLT INPUT – 2.7 AMP
MODEL NUMBERING KEY
FMC - 461
NT
DSCC NUMBER
F
DSCC DRAWING
(5915)
/ 883
Base Model
FMC-461 FILTER
SIMILAR PART
94010-01HXC
FMC-461/883
94010-01HZC
FMC-461F/883
94010-02HXC1
FMC-461NT/8831
94010-02HZC1
FMC-461NTF/8831
1. No transorb (NT)
MIL-STD-461 Reference
No Transorb Option
(Standard FMC-461 has no designator
in this position)
Case Option
(Non-flanged case has no designator in
this position)
Flanged SMDs have the suffix HZC instead of HXC.
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
Screening
(Standard screening has no designator
in this position.)
Model Selection
FMC
Base model
461
MIL-STD-461 ref.
No Transorb option
case option
Screening
Choose one from each of the following rows
No Transorb option
NT or leave blank
Case option
non-flanged (case H1, leave blank)
or F (flanged, case K2)
Screening
standard screening, leave blank
/ES (ES screening), /883 (Class H, QML)
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Page 4 of 10
Rev C - 20060508
Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filters
28 VOLT INPUT – 2.7 AMP
Electrical Characteristics: 25°C Tc, nominal Vin, unless otherwise specified.
PARAMETER
INPUT VOLTAGE
INPUT CLAMPING
VOLTAGE
INPUT CURRENT
DIFFERENTIAL MODE
NOISE REJECTION
COMMON MODE
NOISE REJECTION
DC RESISTANCE (RDC)
FMC-461
TYP
28
45.1
47.0
49.5
—
—
—
MAX
40
49.4
49.4
54.2
2.7
—
—
MIN
0
—
—
—
—
40
50
FMC-461NT1
TYP
28
—
—
—
—
—
—
MAX
40
—
—
—
2.7
—
—
UNITS
VDC
200 kHz
400 kHz - 50 MHz
MIN
0
40.8
44.7
44.7
—
40
50
2 MHz - 50 MHz
TC = 25°C
40
—
—
—
—
0.20
40
—
—
—
—
0.20
dB
Ω
CONDITIONS
CONTINUOUS
–55°C
25°C
125°C
VDC
A
dB
OUTPUT VOLTAGE2
STEADY STATE
OUTPUT CURRENT
RIPPLE
—
VOUT = VIN - IIN (RDC)
—
1.0
—
STEADY STATE
—
—
2.7
—
—
2.7
A
MAXIMUM CURRENT
—
—
1.6
—
—
1.6
W
INTERNAL POWER
DISSIPATION
Notes
1. The FMC-461NT does not have a transorb and does not clamp the input voltage
2. Typical applications result in Vout within 2% of Vin.
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Page 5 of 10
Rev C - 20060508
VOUT = VIN - IIN (RDC)
—
1.0
VDC
A rms
Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filters
28 VOLT INPUT – 2.7 AMP
Typical Performance Curves: 25°C Tc , nominal Vin, unless otherwise specified.
EMISSION LEVEL (dmA)
90
70
50
30
10
.015
0.1
1
10
50
FREQUENCY (MHz)
DC/DC Converter Typical Worst Case
EMI With FMC-461 Filter
FIGURE 3
5
Attenuation (dB)
-15
-35
-55
-75
-95
1K
10 K
100 K
1M
FREQUENCY (Hz)
FMC-461 Typical Amplitude
Response vs. Frequency
FIGURE 4
dB Ohms = 20 log Zout
10
0
-10
-20
1K
10 K
100 K
1M
FREQUENCY (Hz)
Typical Output Impedance (Z)
With Input Shorted
FIGURE 5
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Page 6 of 10
Rev C - 20060508
Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filter Cases
28 VOLT INPUT – 2.7 AMP
BOTTOM VIEW CASE H1
Seam Seal
Squared corner and dot on top
of case indicate pin one.
0.040 dia
(1.02)
1.110 max. (28.19)
0.955 (24.26)
1
2
3
5
4
0.245 (6.22)
1.845 (46.86)
0.555 (14.1)
0.155 (3.94)
Seal hole: 0.120 ±0.002 (3.05 ±0.05)
2.090 max. (53.01)
0.000
0.25 ±0.01
(6.4 ±0.3)
0.000
0.400 max.
(10.16)
0.000
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device.
Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header
Cold Rolled Steel/Nickel/Gold
Cover
Kovar/Nickel
Pins
#52 alloy/Gold ceramic seal
Case H1, Rev C, 20060110
Please refer to the numerical dimensions for accuracy. All information is believed to be accurate,
but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make
changes in products or specifications without notice.
Copyright © 1999-2006 Interpoint Corp. All rights reserved.
FIGURE 6: CASE H1
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Page 7 of 10
Rev C - 20060508
Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filter Cases
28 VOLT INPUT – 2.7 AMP
BOTTOM VIEW CASE K2
Flanged cases: Designator “F” required in Case Option position of model number.
Seam Seal
0.040 dia
(1.02)
Dot on top of case indicates pin one
1.110 max. (28.19)
0.955 (24.26)
1
2
0.162 dia
(4.11)
3
5
4
0.245 (6.22)
1.845 (46.86)
0.555 (14.1)
0.155 (3.94)
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device.
Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins
#52 alloy/Gold ceramic seal
Case K2, Rev C, 20060110
Please refer to the numerical dimensions for accuracy. All information is believed to be accurate,
but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make
changes in products or specifications without notice.
Copyright © 1999-2006 Interpoint Corp. All rights reserved.
FIGURE 7: CASE K2
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Page 8 of 10
Rev C - 20060508
2.320 (58.93)
2.910 max. (73.91)
Seal hole: 0.120 ±0.002 (3.05 ±0.05)
2.090 (53.01)
0.000
0.230 (5.84)
0.25 ±0.03
(6.4 ±0.8)
0.000
0.400 max.
(10.16)
0.000
Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filters
28 VOLT INPUT – 2.7 AMP
883, CLASS H, QML PRODUCTS – ELEMENT EVALUATION
ELEMENT EVALUATION
STANDARD
(NON-QML)1
M/S2
P3
TEST PERFORMED
(COMPONENT LEVEL)
CLASS H,
QML
M/S2
P3
Element Electrical (probe)
yes
no
yes
yes
Element Visual
no
no
yes
yes
Internal Visual
no
no
yes
no
Final Electrical
no
no
yes
yes
Wire Bond Evaluation4
no
no
yes
yes
SLAM™/C-SAM:
Input Capacitors only
(Add’l test, not req. by H or K)
no
no
no
yes
Definitions:
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SLAM™: Scanning Laser Acoustic Microscopy
C-SAM: C - Mode Scanning Acoustic Microscopy
Notes:
1. Non-QML products do no meet all of the requirements of MIL-PRF-38534
2. M/S = Active components (Microcircuit and Semiconductor Die)
3. P = Passive components
4. Not applicable to EMI filters that have no wire bonds
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Page 9 of 10
Rev C - 20060508
Crane Aerospace & Electronics Power Solutions
FMC EMI Input Filters
28 VOLT INPUT – 2.7 AMP
883, CLASS H, QML PRODUCTS – ENVIRONMENTAL
SCREENING
TEST
125°C
STANDARD
non-QML
125°C
/ES
non-QML
Class H
/883
QML
Pre-cap Inspection
Method 2017, 2032
yes
yes
yes
Temperature Cycle (10 times)
Method 1010, Cond. C, -65°C to 150°C, ambient
Method 1010, Cond. B, -55°C to 125°C, ambient
no
no
no
yes
yes
no
Constant Acceleration
Method 2001, 3000 g
Method 2001, 500g
no
no
no
yes
yes
no
Burn-In
Method 1015, 160 hours at 125°C case, typical
96 hours at 125°C case, typical
no
no
no
yes
yes
no
Final Electrical Test MIL-PRF-38534, Group A
Subgroups 1 through 6: -55°C, +25°C, +125°C case
Subgroups 1 and 4: +25°C case
no
yes
no
yes
yes
no
Hermeticity Test
Fine Leak, Method 1014, Cond. A
Gross Leak, Method 1014, Cond. C
Gross Leak, Dip (1 x 10-3)
no
no
yes
yes
yes
no
yes
yes
no
Final Visual Inspection
Method 2009
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
FMC EMI Input Filters Rev C - 20060508. This revision supercedes all previous releases. All technical information is believed to be accurate, but no responsibility is
assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. FMC Series is a trademark of Interpoint.
Copyright © 1999 - 2006 Interpoint Corporation. All rights reserved. www.craneae.com
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