HIREL DESIGN
REPLACES APEX FDB461
WELDED HERMETIC PACKAGE
ALL CERAMIC CAPACITORS
SURFACE MOUNT MAGNETICS
FEATURES
55 TO +125C OPERATION
50db MINIMUM DIFFERENTIAL MODE REJECTION AT 500 KHz
5.5 AMPS THROUGHPUT CURRENT
MEETS MIL-STD-461C CEO3 STANDARDS FOR MSK BBF2800
SERIES DC-DC CONVERTERS
MIL-STD-704A THROUGH E POWER BUS COMPATIBILITY
DESCRIPTION
The BFL2805 is a high reliability EMI filter for use with MSK
BBF2800 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.
BFL2805 hybrid 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 12-pin high profile dip package allows connection to a
heatsink and is hermetically sealed and isolated from the
internal circuits. Heat sinking is recommended for full power
operation at elevated ambient temperatures.
EQUIVALENT SCHEMATIC
EXTERNAL CONNECTIONS
TYPICAL APPLICATION
4707 Dey Road Liverpool, N.Y. 13088
M.S.KENNEDY CORP.
(315) 701-6751
BFL2805
ISO-9001 CERTIFIED BY DSCC
5A
EMI FILTER
Rev. - 3/01
1
1
2
3
4
5
6
+VIN
INPUT COMMON
N/C
N/C
N/C
N/C
12
11
10
9
8
7
N/C
N/C
N/C
CASE GROUND
+VOUT
OUTPUT COMMON
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
INPUT VOLTAGE
STEADY STATE
0
28
40
V
INPUT VOLTAGE
TRANSIENT 50 sec. MAX
50
V
INPUT CURRENT
DC
5.5
A
OUTPUT VOLTAGE
STEADY STATE
V
out
= V
in
-Iin(RDC)
Vdc
OUTPUT CURRENT
RIPPLE
0.3
A rms
OUTPUT CURRENT
STEADY STATE
5.5
A
DC RESISTANCE (Rdc)
T = 25C
0.20
0.35
Ohms
NOISE REDUCTION
200 Khz
35
40
db
NOISE REDUCTION
500 KHz
50
60
db
CAPACITANCE
ANY PIN TO CASE
4.7
F
ISOLATION
ANY PIN TO CASE, 500 Vdc
100
MOhm
OPERATING TEMPERATURE RANGE
CASE BASEPLATE
55
+125
C
STORAGE TEMPERATURE RANGE
CASE BASEPLATE
65
+150
C
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
BFL2805
ABSOLUTE MAXIMUM RATINGS
INPUT VOLTAGE RANGE
0-50Vdc
INPUT VOLTAGE TRANSIENT
50V @ 50s
TEMPERATURE RANGE, storage
65 to 150C.
OPERATING TEMPERATURE, case
55 to 125C.
NOTES: 1.
Tcase= 25C unless otherwise specified.
2.
Longterm operation at the maximum temperature will result in reduced product life. Derate internal power dissipation to achieve
high MTTF.
SPECIFICATIONS
TYPICAL PERFORMANCE GRAPHS
BBF2803S CONVERTER WITH BFL2805 FILTER
BBF2805S CONVERTER WITH BFL2805 FILTER
BBF2812S CONVERTER WITH BFL2805 FILTER
BBF2815S CONVERTER WITH BFL2805 FILTER
Rev. - 3/01
2
The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make
changes to its products or specifications without notice, however, and assumes no liability for the use of its products.
Please visit our website for the most recent revision of this datasheet.
M.S. Kennedy Corp.
4707 Dey Road, Liverpool, New York 13088
Phone (315) 701-6751
FAX (315) 701-6752
www.mskennedy.com
NOTE: ALL DIMENSIONS ARE 0.010 INCHES UNLESS OTHERWISE LABELED.
ESD Triangle indicates Pin 1.
BFL2805
The above example is an industrial grade 5 Amp EMI Filter
ORDERING INFORMATION
SCREENING
BLANK= INDUSTRIAL; E= EXTENDED RELIABILITY;
H= CLASS H; K= CLASS K
OUTPUT CURRENT
05=5 AMP
NOMINAL INPUT VOLTAGE
GENERAL PART NUMBER
Rev. - 3/01
3
MECHANICAL SPECIFICATIONS
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