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International Rectifier Electronic Components Datasheet



AFH461

EMI FILTER



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AFH461 pdf
PD-95856C
EMI FILTER
HYBRID - HIGH RELIABILITY
AFH461 SERIES
Description
The AFH Series EMI filter has been designed to provide
full compliance with the input line reflected ripple current
requirement specified by CE03 of MIL-STD-461C over
the extended military temperature range while
operating in conjunction with the corresponding AMA,
AMF and AMR series of DC-DC converters. These
filters are offered as part of a family of high reliability
conversion products providing single, dual and triple
output voltages while operating from nominal +28 volt
input line. Other converters operating with a similar
switching frequency will also benefit by use of this
device.
These EMI filters are hermetically packaged in a seam
welded enclosure utilizing axially oriented copper-core
pins which minimize resistive DC losses. This package
has been configured to complement the AMA, AMF and
AMR packages as a convenience in system installation
and is fabricated with International Rectifier’s rugged
ceramic lead-to-package seal assuring long term
hermetic seal integrity in harsh environments.
Designed to meet the stringent requirements of military
and aerospace use, these devices are manufactured
in a facility fully qualified to MIL-PRF-38534, and are
available in two screening grades. The flight grade is
designed with the requirements of MIL-PRF-38534
for class K.
Typical Connection Diagram
AFH
Features
n Up to 2.0 A Output Current
n Attenuation > 60dB@500 kHz
n Low Profile Seam Welded Package
n Ceramic Insulated Copper Core Pins
n Operation Over Full Military Temp. Range
n No Derating for -55°C to +125°C
The EM grade is processed and screened to a
lower grade requirement. Flight grade are tested
to meet the complete group “A” test specifications
over the full military temperature range with no
derating. The design does not meet MIL-STD-
975 voltage derating requirements for some
ineternal components. Variations in electrical,
mechanical and screening requirements can be
accommodated. Contact IR San Jose for special
requirements.
System
Bus
+Vin
+Vout
AFH461
EMI Filter
Input Return
Output Return
+Vin
AMF28XX
+Vout
(or Other)
DC/DC Converter
Input Return
Output Return
RL
www.irf.com
+Vin
AMF28XX
+Vout
(or Other)
DC/DC Converter
Input Return
Output Return
RL
1
08/02/12
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AFH461 pdf
AFH461 Series
Specifications
Absolute Maximum Ratings, Note 1
Input Voltage
Input Curent
Lead Soldering Temperature
Case Temperature - Operating
Case Temperature - Storage
-80V to +80V, Note 2
3.0A
+300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Electrical Characteristics -55°CTCASE +125°C, 0VIN+50 unless otherwise specified
Parameter
Group A
Subgroup
Conditions
Min. Nom. Max. Unit
Input Voltage
1, 2, 3
IIN < 500 A
Transient, Note 2
0 +40
VDC
-50 +50
Output Current, Note 3
DC Resistant, Note 4
Power Dissipation
Noise Reduction
Isolation
Capacitance
1
4, 5, 6
1
1, 2, 3
TC = 25°C
Maximum Current, TC = 25°C
TC = 25°C
1.0 kHZ
200 kHz - 500 kHz
500 kHz - 10 MHz
Any Pin to Case, Tested @ 500VDC
Measured between any Pin and Case
2.0 ADC
150 250 m
1.0 W
-1.0 +1.0
-40 dB
-60
100 M
32 44 48 nF
Device Weight
Slight variation with Case Style
30 g
Notes to Specifications
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 .
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.
2 www.irf.com
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Part Number AFH461
Description EMI FILTER
Maker International Rectifier - International Rectifier
Total Page 5 Pages
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