Datasheet

cui.com
date 06/16/2014
page
1 of 6
SERIES: VFK400W-DIN │ DESCRIPTION: DC-DC CONVERTER
date 06/16/2014
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%
• comes with DIN-rail mount
VFK400W - QXX - SXX - DIN
Input Voltage Output Voltage
Mounting Type
DIN = DIN-rail mount
Base Number
MODEL
input
voltage
output
voltage
output
current
output
power
ripple
and noise
1
efciency
range
(Vdc) (Vdc)
max
(A)
max
(W)
max
(mVp-p)
max
(%)
VFK400W-Q24-S12-DIN 10~36 12 33.3 400 200 87
VFK400W-Q24-S24-DIN 10~36 24 16.7 400 240 86
VFK400W-Q24-S48-DIN 10~36 48 8.3 398 480 86
VFK400W-Q48-S12-DIN
2
20~75 12 33.3 400 200 87
VFK400W-Q48-S24-DIN 18~75 24 16.7 400 240 86
VFK400W-Q48-S48-DIN 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.
PART NUMBER KEY
MODEL
input
voltage
output
voltage
output
current
output
power
ripple
and noise
1
efciency
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
VFK400W-Q48-S12 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.