sfme28-461 Interpoint Corp., sfme28-461 Datasheet

sfme28-461

Manufacturer Part Number

sfme28-461

Description

Emi Input Filter

Manufacturer

Interpoint Corp.

Datasheet

1.SFME28-461.pdf (5 pages)

Current page: 1 of 5
Download datasheet (74Kb)

• Fully qualified to Class H or K

• Passive components for

• –55° to +125°C operation

• Up to 10 amps of

• Up to 50 dB attenuation

• Compliant to MIL-STD-461C, CE03

• Compatible with MIL-STD-704E

DESCRIPTION

The SFME28-461™ Series EMI filter modules are specifically

designed to reduce the reflected input ripple current of high

frequency DC/DC converters. SFME28-461 filters minimize electro-

magnetic interference (EMI) for Interpoint’s space applications

converters. These filters are intended for use in 28 volt applications

which must meet MIL-STD-461 levels of conducted emissions. One

filter can be used with multiple converters up to the rated throughput

current of the filter.

The SFME28-461 filter offers three screening options – Standard,

Class H, or Class K. See Section C2, Quality Assurance, pages C2-

7 through C2-9, for descriptions. Detailed reports on product

performance are also available and are listed on page C2-9.

Switching DC/DC converters naturally generate two noise compo-

nents on the power input line: differential noise and common mode

noise. Input ripple current refers to both of these components.

Differential noise occurs between the positive input and input

common. Most Interpoint converters have an input filter that reduces

differential noise which is sufficient for most applications.

Common mode noise occurs across stray capacitances between

the converter’s power train components and the baseplate (bottom

of the package) of the converter.

SFME28-461

EMI FILTER

10 AMP

NPUT

B1-13

EATURES

CREENING AND

maximum tolerance in space

environments

throughput current

at 500 kHz.

DC power bus

IPPLE AND

All technical information is believed to be accurate, but no responsibility is assumed

for errors or omissions. Interpoint reserves the right to make changes in products

or specifications without notice. SFME28+461 is a trademark of Interpoint.

EPORTS

EMI

Size (max.): 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16mm)

Weight:

Screening: Standard, Class H, or Class K (MIL-PRF-38534)

EMI I

See Section B8, case U1, for dimensions.

110 grams maximum

See Section C2 for screening options, see Section A5 for

28 V

ordering information.

NPUT

OLT

Where low noise currents are required to meet CE03 of MIL-STD-

461, a power line filter is needed. The SFME28-461 Series of EMI

power line filters reduces the common mode and differential noise

generated by the converters. SFME28-461 filters reduce input ripple

current by as much as 60 dB at 500 kHz and 55 dB at 1 MHz when

used in conjunction with Interpoint’s DC/DC converters.

The filter must be placed as close as possible to the converter for

optimum performance. The baseplates of the filter and the converter

should be connected with the shortest and widest possible conduc-

tors. For the best connection, mount the filter’s and converter’s

baseplates on or above a small ground plane.

All SFME28-461 Series filters are rated for full power operation from

–55°C to +125°C case temperature. Current is derated linearly to

zero at +135°C case temperature.

The maximum dc insertion loss at full load and nominal input voltage

represents a power loss of less than 4%.

SFME28-461filters are sealed in metal hermetic side-leaded pack-

ages.

For more information, contact your Interpoint representative

listed in Section A5.

NSERTION

ACKAGING

PERATION OVER

NPUT

ILTER

OSS

EMPERATURE

Input (V)

AND

NPUT

URRENT

OLTAGE

Current ( A)

Related parts for sfme28-461

sfme28-461 Summary of contents

Page 1

... See Section C2 for screening options, see Section A5 for ordering information. Where low noise currents are required to meet CE03 of MIL-STD- 461, a power line filter is needed. The SFME28-461 Series of EMI power line filters reduces the common mode and differential noise generated by the converters. SFME28-461 filters reduce input ripple current by as much 500 kHz and MHz when used in conjunction with Interpoint’ ...

Page 2

CASE CASE U 1.505 max (38.23) B8-36 C ASES Angled corner indicates pin one CASE U TOP VIEW (PIN SIDE) See Figures 55 and 56 for dimensions 3.005 (76.33) max. Note: Pins are shown for Case U1. Materials Header Cold ...

Page 3

MFL Series and MHP Series: Screening – Standard 883 MFLHP Series, FMD270 EMI Filter, and FMD28-461SL EMI Filters: Screening – Standard or ES SMFL, SMFLHP, SMHP, and SSP Series; SFCS, and SFME EMI Filters: Screening – Standard, Class ...

Page 4

... SLIM Module SFME120 EMI Filter SFME28 EMI Filter SFCS EMI Filter QA SCREENING SPACE PRODUCTS C LASS K P M/S P yes yes no yes no no yes yes no yes yes no yes no no ...

Page 5

... SFME120 EMI Filter C C LASS LASS yes yes yes yes yes yes yes no yes no yes yes yes no no yes no no yes yes yes yes yes yes yes yes yes SFME28 EMI Filter SFCS EMI Filter SFMC EMI Filter STF EMI Filter ...

Related keywords

sfme28-461 datasheet
sfme28-461 data sheet
sfme28-461 pdf datasheet
sfme28-461 component
sfme28-461 part
sfme28-461 distributor
sfme28-461 RoHS
sfme28-461 datasheet download