VHK50W-Q24-S15 CUI Inc, VHK50W-Q24-S15 Datasheet - Page 4
![CONVERTER DC-DC 15V 3.33A 50W](/photos/8/90/89003/vhk50w-q24-s15_sml.jpg)
VHK50W-Q24-S15
Manufacturer Part Number
VHK50W-Q24-S15
Description
CONVERTER DC-DC 15V 3.33A 50W
Manufacturer
CUI Inc
Series
V-Infinity VHK50Wr
Type
Isolatedr
Datasheet
1.VHK50W-Q24-S15.pdf
(11 pages)
Specifications of VHK50W-Q24-S15
Output
15V
Number Of Outputs
1
Power (watts)
50W
Mounting Type
Chassis Mount
Voltage - Input
9 ~ 36V
Package / Case
Module
1st Output
15 VDC @ 3.33A
Size / Dimension
4.23" L x 4.01" W x 1.50" H (107.5mm x 101.8mm x 38mm)
Power (watts) - Rated
50W
Operating Temperature
-40°C ~ 85°C
Efficiency
82%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-
4th Output
-
Other names
102-1822
PART NUMBER: VHK50W
APPLICATION NOTES
1. OUTPUT DE-RATING
The operating ambient temperature range for VHK50W is -40 ~ +85°C, with the actual output power subject to the following de-rating
curves at free-air convection and at forced air conditions. To ensure long-term reliability, it is important to ensure proper cooling at
the worst operating conditions. Please note the derating curves may improve if the converter is mounted on a metal surface to allow
heat conduction.
2. INPUT VOLTAGE RANGE
It is important to ensure the input voltage measured at the converter input pins is within the range for that converter. Make sure wire
losses and voltage ripples are accounted for. One possible problem is driving the converter with a linear unregulated power supply.
For example, if the average voltage measured by a DMM is 9V, with a voltage ripple of 3Vpp, the actual input can swing from 7.5V to
10.5V. This will be outside the specified input range of 9-36V and the converter may not function properly. On the other end, make
sure the actual input voltage does not exceed the highest voltage of 36V or75V.
3. LEAD WIRES
Make sure the input and output wires are of adequate AWG size to minimize voltage drop, and ensure the voltage across the input
terminals is above the converter's rated minimum voltage at all times. It is recommended to have the wire pairs twisted, respectively
for the input pair and the output pair, so as to minimize noise pickup.
20050 SW 112
120%
100%
80%
60%
40%
20%
0%
-40
th
Ave. Tualatin, Oregon 97062
55
60
VHK50W Power Derating Curves @ Nominal Input
FIGURE 1. OUTPUT DERATING
Ambient Temperature - degrees C
65
phone
phone 503.612.2300 fax
DESCRIPTION: chassis mount dc-dc converter
70
fax 503.612.2383
75
80
www.v-infinity.com
85
page
date
08/2009
4 of 11
Natural
Convection
0.5 m/S
(100LFM)
1.0 m/S
(200LFM)
1.5 m/S
(300LFM)
2.0 m/S
(400LFM)
2.5 m/S
(500LFM)
3.0 m/S
(600LFM)
3.5 m/S
(700LFM)