ISO-9001 CERTIFIED BY DSCC
M.S.KENNEDY CORP.
4707 Dey Road Liverpool, N.Y. 13088
3A
EMI FILTER
EFJ2803
(315) 701-6751
HIREL DESIGN
WELDED HERMETIC PACKAGE
ALL CERAMIC CAPACITORS
SURFACE MOUNT MAGNETICS
FEATURES
REPLACES APEX FDHC461
55º TO +125ºC OPERATION
40db MINIMUM DIFFERENTIAL MODE REJECTION
AT 200 KHz
60db MINIMUM DIFFERENTIAL MODE REJECTION
FROM 500 KHzTO 50 MHz
MEETS MILSTD461C CEO3 STANDARDS FOR
MSK DHC2800 SERIES DCDC CONVERTERS
MILSTD704A THROUGH E POWER BUS
COMPATABILITY
EQUIVALENT SCHEMATIC
V
IN
+Vout
CASE
GND
INPUT
COMMON
OUTPUT
COMMON
DESCRIPTION
The EFJ2803 is a high reliability EMI filter for use with the
DAC2800/DHC2800 series of DC-DC converters. This filter
has been designed to reduce the input line reflected ripple
current to within the limit of MIL-STD-461C, CE03.
EFJ2803 hybird EMI filters utilize all ceramic capacitors,
surface mount magnetics and ultrasonically bonded alumi-
num wires to provide reliable operation at all operating tem-
peratures while surviving very high G forces.
The 8-pin package is hermetically sealed and isolated from
the internal circuits. Heat sinking is recommended for full
power operation at elevated ambient temperatures. Multiple
DC-DC converters may use the same filter, up to the rated
throughput current of the filter.
EXTERNAL CONNECTIONS
1
2
3
4
5
6
7
8
+VIN
+VOUT
+VOUT
CASE GROUND
OUTPUT COMMON
OUTPUT COMMON
INPUT COMMON
CASE GROUND
TYPICAL APPLICATION
1
Rev. - 2/01
MSK [ M.S. KENNEDY CORPORATION ]
