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EMI FILTER

HYBRID - HIGH RELIABILITY

Description

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

Features

AFH

Typical Connection Diagram

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.

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.

08/02/12

AFH461 SERIES

AFH461

EMI Filter

AMF28XX

(or Other)

DC/DC Converter

+Vin

+Vin

Input Return

Input Return

+Vout

+Vout

Output Return

Output Return

R

L

R

L

System

Bus

AMF28XX

(or Other)

DC/DC Converter

+Vout

Output Return

+Vin

Input Return

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.

PD-95856C