Operating COnditiOns and

CharaCteristiCs

input Voltage range

0 to 50 VDC continuous

•

Transient +100 V for 100 ms

•

lead soldering temperature (10 sec per lead)

300°C

•

storage temperature range (case)

-65°C to +150°C

•

-55°C to +125°C full power

•

-55°C to +135°C absolute

•

Derating input/output current

Linearly from 100% at 125°C to 0% at 135° C

•

isolation

100 megohm minimum at 500 VDC

•

meChaniCal and envirOnmental

size (maximum)

Case J4, FMD28-461

•

2.720 x 1.350 x 0.505 inches (69.09 x 34.29 x 12.83 mm)

‣

Shown on page 1 in Case J4 (down-leaded).

‣

Case U, FMD28-461SL

•

3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm)

Weight (maximum)

Case J4: 55 grams typical

•

Case U: 77 grams typical

•

screening

FMD28 is offered with 125°C Standard and /ES, non-QML

screening. See Standard and /ES (non-QML) screening tables for

more information on page 8.

Positive

Input

Input

Common

Positive

Output

Output

Common

FMD28-461

+Vin

+Vout

Input

Common

Output

Common

Case

RL

RL

EMI FILTER

DC/DC CONVERTER

+Vin

+Vout

Input

Common

Output

Common

Case

Chassis

ground

Multiple units

allowed up to

rated output

current of filter

The case ground connection between the filter and the converter should be as

low an impedance as possible to minimize EMI. Direct contact of baseplate to

chassis ground provides the lowest impedance.

Crane Aerospace & Electronics Power Solutions

www.interpoint.com

Page 2 of 8

FMD28-461 eMi input Filters

28 Volt input – 7 aMp

FMD28 Rev C - 20100226