ISO-9001 CERTIFIED BY DSCC
M.S.KENNEDY CORP.
4707 Dey Road Liverpool, N.Y. 13088
5A
EMI FILTER
BFL2805
(315) 701-6751
HIREL DESIGN
REPLACES APEX FDB461
WELDED HERMETIC PACKAGE
ALL CERAMIC CAPACITORS
SURFACE MOUNT MAGNETICS
FEATURES
55º TO +125ºC 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
TYPICAL APPLICATION
EXTERNAL CONNECTIONS
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
1
Rev. - 3/01
BFL2805
ABSOLUTE MAXIMUM RATINGS
INPUT VOLTAGE RANGE
INPUT VOLTAGE TRANSIENT
TEMPERATURE RANGE, storage
OPERATING TEMPERATURE, case
ABSOLUTE MAXIMUM RATINGS
SPECIFICATIONS
0-50Vdc
50V @ 50µs
–65 to 150°C.
–55 to 125°C.
SPECIFICATIONS
PARAMETER
INPUT VOLTAGE
INPUT VOLTAGE
INPUT CURRENT
OUTPUT VOLTAGE
OUTPUT CURRENT
OUTPUT CURRENT
DC RESISTANCE (Rdc)
NOISE REDUCTION
NOISE REDUCTION
CAPACITANCE
ISOLATION
OPERATING TEMPERATURE RANGE
STORAGE TEMPERATURE RANGE
TEST CONDITIONS
STEADY STATE
TRANSIENT 50 µ sec. MAX
DC
STEADY STATE
RIPPLE
STEADY STATE
T = 25ºC
200 Khz
500 KHz
ANY PIN TO CASE
ANY PIN TO CASE, 500 Vdc
CASE BASEPLATE
CASE BASEPLATE
MIN
0
TYP
28
V
out
= V
in
-Iin(RDC)
0.20
40
60
0.3
5.5
0.35
4.7
100
–55
–65
+125
+150
MAX
40
50
5.5
UNITS
V
V
A
Vdc
A rms
A
Ohms
db
db
µF
MOhm
°C
°C
35
50
NOTES: 1.
2.
Tcase= 25°C unless otherwise specified.
Longterm operation at the maximum temperature will result in reduced product life. Derate internal power dissipation to achieve
high MTTF.
TYPICAL PERFORMANCE GRAPHS
BBF2803S CONVERTER WITH BFL2805 FILTER
BBF2805S CONVERTER WITH BFL2805 FILTER
BBF2812S CONVERTER WITH BFL2805 FILTER
BBF2815S CONVERTER WITH BFL2805 FILTER
2
Rev. - 3/01
MECHANICAL SPECIFICATIONS
NOTE: ALL DIMENSIONS ARE ±0.010 INCHES UNLESS OTHERWISE LABELED.
ESD Triangle indicates Pin 1.
BFL2805
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
The above example is an industrial grade 5 Amp EMI Filter
4707 Dey Road, Liverpool, New York 13088
Phone (315) 701-6751
FAX (315) 701-6752
www.mskennedy.com
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.
3
Rev. - 3/01
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