02/16/10
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EMI FILTER
HYBRID-HIGH RELIABILITY
AME28461 SERIES
Description
nUp to 15 Ampere Output Current
nAttenuation > 35dB @ 200 KHz
nLow Profile (0.38”) Seam Welded Package
nCeramic Feedthru Copper-Core Pins
nOperation Over Full Military Temp. Range
nStandard Military Drawings Available
Features
AME
Typical Connection Diagram
The AME Series of EMI filters have been designed to
provide full compliance with the input line reflected
ripple current requirement specified by CE03 of MIL-
STD-461C over the full military temperature range while
operating in conjunction with the corresponding AFL
series of DC-DC converters. These filters are offered
as part of a complete family of conversion products
providing single and dual output voltages while
operating from nominal +28 or +270 input line voltage.
Other converters operating with a similar switching
frequency will also benefit by use of this device.
These EMI filters are hermetically packaged in two
enclosure variations, utilizing copper-core pins to
minimize resistive DC losses. Three lead styles are
available, each fabricated with International Rectifier’s
rugged ceramic lead-to-package seal assuring long
term hermetic seal integrity in harsh environments.
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are available in four screening
grades to satisfy a wide range of applications. The CH
grade is fully compliant to the requirements of MIL-
PRF-38534 for class H. The HB grade is fully processed
and screened to the class H requirement, but does not
include element evaluation to the class H requirement.
Both grades are tested to meet the complete
group “A” test specification over the full military
temperature range with no derating. Two grades
with more limited screening are also available
for use in less demanding applications. Variations
in electrical, mechanical and screen requirements
can be accommodated. Contact IR San Jose for
special requirements.
AME28461
EMI Filter
AFL28XX
or Other
DC/DC Converter
+Vin
+Vin
Input Return
Input Return
+Vout
+Vout
Output Return
Output Return
To Additional Converters up to Total
of Filter Rated Output Current
RL
RL
System
Bus
AFL28XX
or Other
DC/DC Converter
+Vout
Output Return
+Vin
Input Return
Note: Filter and Converter
Cases Should be
Electrically Connected
PD-94597A
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AME28461 Series
Specifications
Electrical Characteristics -55°C ≤ TCASE ≤ +125°C, -40V ≤ VIN ≤ +40V unless otherwise specified
Notes to Specifications
ABSOLUTE MAXIMUM RATINGS, Note 1
Input Voltage -100V to +100V Note 2
Input Current 30A
Lead Soldering Temperature 300°C for 10 seconds
Case Temperature Operating -55°C to +125°C
Storage -65°C to +135°C
Parameter
Group A
Subgroups
Test Conditions
Min
Max
Unit
Leakage Current Note 3 1, 2, 3 ± 100V DC Input Voltage 0 50 µA
DC Resistance Note 4 1, 2, 3 TC = 25°C
TC = 125°C
40
70 mΩ
Noise Reduction 4, 5, 6
200 KHz - 500 KHz
500 KHz - 1 MHz
1 MHz – 10 MHz
35
60
65
dB
Isolation 1 Any Pin to Case, Tested @ 500VDC 100 MΩ
Capacitance
1
2, 3 Measured Between Any Pin and Case
34
30
56
62 nF
1. Operation above maximum ratings may cause permanent damage to the device. Operation at maximum ratings
may degrade performance and affect reliability.
2. Device can tolerate ± 100 Volt transient whose duration is ≤ 100 ms when RS ≥ 0.5 Ω.
3. Derate Output Current linearly from 100% at 125°C to 0 at 135°C.
4. DC resistance is the total resistance of the device and includes the sum of the input to output resistance and the
return in to return out resistance paths.
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AME28461 Series
Block Diagram
Refer to last page for Pin Designation
Circuit Operation and Application Information
The AME series of filters employ three stages of
filtering in a low pass configuration designed to
attenuate the higher frequency components of ripple
currents generated by high frequency switching DC-
DC converters. The Block Diagram describes the
general arrangement of the principal elements which
have been connected to provide both differential and
normal mode buffering between the input and output
terminals.
When a single AME filter is used in conjunction with
multiple DC-DC converters, the use will be limited to
the maximum output current capability specified in
the AME electrical table.1 A typical connection
utilizing one filter to drive two converters is illustrated
on page 1.
1 To calculate the input current (iin) requirement of any one converter, first determine the maximum output power by
multiplying output voltage by maximum load current, divide this power by the efficiency to obtain input power and then divide
input power by input voltage to obtain the input current (iin). Note that to obtain worst case input current, you must use
maximum load current, minimum efficiency and minimum line voltage in this calculation.
7
121
6
22 µF 11 µF
20 nF
20 nF
Case
Output
Output
Return
Input
Input
Return
2
3
5
4
11
10
8
9
Employing only passive elements, AME filter
operation is initiated simply by insertion into the input
power path between one or more DC-DC converters
and their input DC voltage bus. In this connection,
output pins of the filter will be connected to input
pins of the converters.
Although expressly designed to complement the AFL
series of DC-DC converters, when operated within
their specified limits the AME filters can be
successfully operated in conjunction with other
converters in the Advanced Analog line including
the ASA, AHF, AHV and ATR series.
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AME28461 Series
Requirement
MIL-STD-883
Method
No
Suffix
ES
Suffix
HB
Suffix
CH
Suffix
Temperature Range -20 to +85°C -55°C to +125°C -55°C to +125°C -55°C to +125°C
Element Evaluation MIL-PRF-38534
Internal Visual 2017
Yes Yes Yes
Temperature Cycle 1010 Cond B Cond C Cond C
Constant Acceleration 2001 500g Cond A Cond A
Burn-in 1015 48hrs@ 85°C 48hrs@ 125°C 160hrs @ 125°C 160hrs @ 125°C
Final Electrical
(Group A)
MIL-PRF-38534
& Specification
25°C 25°C -55, +25, +125°C -55, +25, +125°C
Seal, Fine & Gross 1014 Cond A Cond A, C Cond A, C Cond A, C
External Visual 2009
Yes Yes Yes
Available Screening Levels and Process Variations
Available Standard Military Drawing (SMD) Cross Reference
* Per Commercial Standards
Standard
Military Drawing
PIN
Vendor
CAGE
Code
Vendor
similar
PIN
98027-01HUA 52467 AME28461W/CH
98027-01HUC 52467 AME28461W/CH
98027-01HXA 52467 AME28461X/CH
98027-01HXC 52467 AME28461X/CH
98027-01HYA 52467 AME28461Y/CH
98027-01HYC 52467 AME28461Y/CH
98027-01HZA 52467 AME28461Z/CH
98027-01HZC 52467 AME28461Z/CH
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AME28461 Series
Mechanical Diagrams
Case X
Case W
Pin Variation of Case Y
1.260 1.500
2.500
2.760
3.000
ø 0.128
0.250
1.000
Ref 0.200 Typ
Non-cum
0.050
0.220
Pin
ø 0.040
0.238 max
0.380
Max
2.975 max
16
712
0.050
0.220
0.250
1.000
Pin
ø 0.040
0.525
0.380
Max
2.800
0.42
Case Y Case Z
Pin Variation of Case Y
1.500 1.750
2.500
0.25 typ
1.150
0.050
0.220
16
712
1.750 0.375
2.00
0.250
1.000
Ref 0.200 Typ
Non-cum
Pin
ø 0.040
0.300
ø 0.140
0.238 max
0.380
Max
2.975 max
0.050
0.220
0.250
1.000
Ref
Pin
ø 0.040
0.525
0.380
Max
2.800
0.36
Tolerances, unless otherwise specified: .XX = ±0.010
.XXX = ±0.005
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AME28461 Series
Pin Designation
Pin No. Designation
1 Positive Input
2 Positive Input
3 Positive Input
4 Input Return
5 Input Return
6 Input Return
7 Output Return
8 Output Return
9 Output Return
10 Positive Output
11 Positive Output
12 Positive Output
Part Numbering
AME 28 461 X / CH
Model
Input Voltage
28 = 28V
50 = 50V
270 = 270V Applicable
Military Test
Standard
Case Style
W, X, Y, Z
Screening
— , ES, HB, CH
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105
IR SAN JOSE: 2520Junction Avenue, San Jose, California 95134, Tel: (408) 434-5000
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 02/2010
