cui.com

date

01/03/2014

page

1 of 6

SERIES:

VFK400W │ DESCRIPTION: DC-DC CONVERTER

date

01/03/2014

page

1 of 6

FEATURES

• up to 400 W isolated output

• rugged metal enclosure with integrated heat sink

• 4:1 input range (10~36 Vdc, 18~75 Vdc)

• single output from 12~48 Vdc

• 1,500 Vdc isolation

• over current, over temperature, over voltage,

and short circuit protection

• remote on/off

• efficiency up to 87%

PART NUMBER KEY

Input Voltage

Output Voltage

Base Number

MODEL

input

voltage

output

voltage

output

current

output

power

ripple

efficiency

range

(Vdc)

(Vdc)

max

(A)

max

(W)

max

(mVp-p)

max

(%)

VFK400W-Q24-S12

10~36

12

33.3

400

200

87

VFK400W-Q24-S24

10~36

24

16.7

400

240

86

VFK400W-Q24-S48

10~36

48

8.3

398

480

86

20~75

12

33.3

400

200

87

VFK400W-Q48-S24

18~75

24

16.7

400

240

86

VFK400W-Q48-S48

18~75

48

8.3

398

480

86.5

Note:

1. Ripple and noise are measured at full load, 20 MHz BW with 10μF tantalum capacitor and 1μF ceramic capacitor across the output. The 48 Vdc output models require a

22uF aluminum capacitor and a 1uF ceramic capacitor across the output.

2. An external input capacitor of 470uF is recommended to reduce input ripple voltage.

For more information, please visit the product page.