rev.
page
page
date
date
1 of 9
04/2008
PART NUMBER:
VHK50W
DESCRIPTION:
chassis mount dc-dc converter
description
The VHK50W series of rugged DC-DC
converters are designed for high
reliability applications, featuring integral
heat sink, over-temperature protection,
over-current protection and input
transient voltage protection. With an
external input fuse, the converter can
protect accidental input polarity reversal.
The wide 4:1 input range (9-36V or 18-
75V) is very useful to stabilize an input
source like batteries in various
discharging and charging conditions.
Additionally, high efficiency, fast
response, tight regulations, remote sense
and remote On/Off control make these
converters very useful in many industrial
and communications applications.
features
·25-50W isolated output
·Efficiency to 84%
·RoHS Compliant
·4:1 input range
·Regulated output
·Continuous short circuit
protection
·Metal enclosure with integrated
heatsink
·Rugged design
·Over-temperature shutdown
MODEL
VHK50W-Q24-S3R3
VHK50W-Q24-S5
VHK50W-Q24-S12
VHK50W-Q24-S15
VHK50W-Q24-S24
VHK50W-Q48-S3R3
VHK50W-Q48-S5
VHK50W-Q48-S12
VHK50W-Q48-S15
VHK50W-Q48-S24
notes:
input voltage
nominal
range
(V dc)
(V dc)
output
voltage
(V dc)
output
current
1
(A)
input current
no load
full load
(mA)
(mA)
efficiency
typ.
(%)
24
24
24
24
24
48
48
48
48
48
9.0~36.0
9.0~36.0
9.0~36.0
9.0~36.0
9.0~36.0
18.0~75.0
18.0~75.0
18.0~75.0
18.0~75.0
18.0~75.0
3.3
5
12
15
24
3.3
5
12
15
24
10
10
4.16
3.33
2.08
10
10
4.16
3.33
2.08
50
50
50
50
50
50
50
50
50
50
1785
2570
2510
2510
2510
880
1270
1240
1240
1240
77
81
83
83
83
78
82
84
84
84
1. see output derating curve (page 4)
INPUT
parameter
input voltage range
under voltage lockout
conditions/description
min
9
18
nom
24
48
8.8
8
17
16
max
36
75
units
V dc
V dc
V dc
V dc
V dc
V dc
24 Vin power up
24 Vin power down
48 Vin power up
48 Vin power down
section 15 in the application notes
PI type
2. add suffix “N” to the model number for negative logic on/off control
remote on/off control
2
input filter
notes:
*V-Infinity reserves the right to make changes to its products or to discontinue any product or service without notice, and to advise customers to verify the most up-to-
date product information before placing orders. V-Infinity assumes no liability or responsibility for customer’s applications using V-Infinity products other than repair
or replacing (at V-I’s option) V-Infinity products not meeting V-I’s published specifications. Nothing will be covered outside of standard product warranty.
20050
SW
112
th
Ave. Tualatin, Oregon
97062
phone
503.612.2300
fax
503.612.2382
CUI [ CUI INC ]
