cui.com
date 09/05/2012 │ page 2 of 6CUI Inc │ SERIES: VWRBS1 │ DESCRIPTION: DC-DC CONVERTER
INPUT
parameter conditions/description min typ max units
input surge voltage for 1,000 ms
5 Vdc model
12 Vdc model
24 Vdc model
48 Vdc model
-0.7
-0.7
-0.7
-0.7
12
25
50
100
Vdc
Vdc
Vdc
Vdc
internal power dissipation 1.6 W
short circuit input power 1W
input fi lter C fi lter
OUTPUT
parameter conditions/description min typ max units
voltage accuracy
positive
negative
refer to recommended circuit
±1
±2
±3
±5
%
%
line regulation measured from low line to high line ±0.2 ±0.5 %
load regulation measured from 10% to 100% full load ±0.5 ±0.75 %
transient recovery time 25% load step change 8 10 ms
transient response deviation 25% load step change ±3 ±5 %
ripple & noise
all other models
15 V model
25
80
75
150
mVp-p
mVp-p
switching frequency 100% load, nominal input voltage 300 kHz
temperature coeffi cient ±0.03 %/°C
PROTECTIONS
parameter conditions/description min typ max units
short circuit protection continuous, automatic recovery
SAFETY AND COMPLIANCE
parameter conditions/description min typ max units
isolation voltage tested for 1 minute at 1 mA max. 1,500 Vdc
insulation resistance at 500 Vdc 1,000
MΩ
isolation capacitance input to output 35
pF
RoHS compliant yes
MTBF MIL-HDBK-217F, 25°C 1,000,000 hours
ENVIRONMENTAL
parameter conditions/description min typ max units
operating temperature -40 85 °C
storage temperature -50 125 °C
storage humidity non-condensing 95 %
temperature rise
at full load, 25°C
all other models
15 V model
15
80
35
150
°C
°C
lead temperature 1.5 mm from case for 10 seconds 300 °C
For more information, please visit the product page.
