+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.

0.1 µF

50 V

0.015 µF

500 V

Positive

Input

Input

Common

Positive

Output

Output

Common

4.1 µH

4.1 µH

4.1 µH

135 µH

6 µF

50 V

10 µF

50 V

1.3 V

135 µH

0.015 µF

500 V

0.015 µF

500 V

Crane Aerospace & Electronics Power Solutions

Page 2 of 8

FMD28-461 eMi input Filters

28 Volt input – 7 aMp

FMD28 Rev AA - 2014.02.06

www.craneae.com/interpoint