MSK EFJ2803K, EFJ2803H, EFJ2803E, EFJ2803 Datasheet

V

IN

+V

out

CASE
GND

OUTPUT
COMMON

INPUT
COMMON

3A

ISO-9001 CERTIFIED BY DSCC

EMI FILTER

M.S.KENNEDY CORP.

4707 Dey Road Liverpool, N.Y. 13088

HIREL 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 MILSTD461C CEO3 STANDARDS FOR

MSK DHC2800 SERIES DCDC CONVERTERS

 MILSTD704A THROUGH E POWER BUS

COMPATABILITY

EFJ2803

[phone]

EQUIVALENT SCHEMATIC

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 alumi­num wires to provide reliable operation at all operating tem­peratures 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.

TYPICAL APPLICATION

EXTERNAL CONNECTIONS

1

+VIN

2

+VOUT

3

+VOUT

4

CASE GROUND

5

OUTPUT COMMON

6

OUTPUT COMMON

7

INPUT COMMON

8

CASE GROUND

Rev. - 2/011

EFJ2803

ABSOLUTE MAXIMUM RATINGS

SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

INPUT VOLTAGE RANGE 0-50Vdc
INPUT VOLTAGE TRANSIENT 80V @ 50ms
OUTPUT CURRENT
TEMPERATURE RANGE, storage –65 to 150°C.
OPERATING TEMPERATURE, case –55 to ±125°C.

2

3Adc

SPECIFICATIONS

PARAMETER TEST CONDITIONS MIN TYP MAX UNITS

INPUT VOLTAGE STEADY STATE 0 28 40 V
INPUT CURRENT DC 3A
OUTPUT VOLTAGE STEADY STATE V
OUTPUT CURRENT STEADY STATE 3 A
DC RESISTANCE (Rdc) T = 125°C 0.5 @ 25°C 0.85 Ohms
DIFFERENTIAL MODE REJECTION 200 Khz 40 db
DIFFERENTIAL MODE REJECTION 500KHz–50MHz 60 db
COMMON MODE REJECTION 2MHz–50MHz 40 db
CAPACITANCE ANY PIN TO CASE 4 nF
ISOLATION ANY PIN TO CASE, 500Vdc 100 MOhm
OPERATING TEMPERATURE RANGE CASE BASEPLATE –55 +125 ºC
STORAGE TEMPERATURE RANGE CASE BASEPLATE –65 +150 ºC
POWER DISSIPATION 1Adc, T=125°C 0.65 0.85 W
CASE TEMPERATURE RISE CASE TO AIR 38 °C/W

NOTES: 1. Tcase= -55°C to 125°C unless otherwise specified.

2. Typical Dissipation at 3 amps is 6 watts.

= Vin-Iin(RDC) Vdc

out

Rev. - 2/012