+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 should be as low an impedance as possible to minimize EMI.

Direct contact of baseplate to chassis ground provides the lowest impedance.

x3

x2

0.1 F

0.01 F

0.001 F

x2

x2

4.7 F

150 

47 pF

1000 pF

50 

1000 pF

500 V

Positive

Input

Input

Common

Positive

Output

Output

Common

FMA-461

2.4 H

>150 H

4.7 F

3300 pF

500 V

Positive

Input

Input

Common

Positive

Output

Output

Common

FMB-461

3.5 H

9.4 F

0.65 

3.5 H

50 

47 pF

500V

P6KE47

18.8 F

FM-461, FMA-461

AND FMB-461

1.75 To 5 AMP

Page 3 of 9

FM/A/B Rev C 20100212

www.interpoint.com