VRX3-DIP [CUI]
DC-DC CONVERTER;
CUI INC 
For more information, please visit the product page.
date 09/11/2012
page 1 of 5
SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
FEATURES
• 3 W isolated output
• short circuit protection
• wide input (2:1)
• wide temperature (-40~85°C)
• industry standard 10 pin DIP package • efficiency up to 80%
• no heatsink required
• unregulated outputs
• 1,500 V isolation
RoHS
input
voltage
output
voltage
output
current
output
ower
mx
ripe
efficiency
MODEL
and oise1
typ
range
min
max
typ
typ
(Vdc)
(Vdc)
(Vdc)
±5
±9
±12
±15
±5
±9
12
±1
±5
±9
±12
±5
±5
±9
±12
±15
5
(mA)
±30
±16
±12
±10
±30
16
±1
±10
±30
±16
±12
±10
±30
±16
±12
±10
60
(m
(W
(mVp-p)
(%)
VRA3-D5-D5-DIP
VRA3-D5-D9-DIP
VRA3-D5-D12-DIP
VRA3-D5-D15-DIP
VRA3-D12-D5-DIP
VRA3-D12-D9-DIP
VRA3-D12-D12-DIP
VRA3-D12-D15-DIP
VRA3-D24-D5-DIP
VRA3-D24-D9-DIP
VRA3-D24-D12-DIP
VRA3-D24-D15-DIP
VRA3-D48-D5-DIP
VRA3-D48-D9-DIP
VRA3-D48-D12-DIP
VRA3-D48-D15-DIP
VRB3-D5-S5-DIP
VRB3-D5-S9-DIP
VRB3-D5-S12-DIP
VRB3-D5-S15-DI
VRB3-D12-S5-DIP
VRB3-D19-DIP
VRB3-D12-S1-DIP
VRB3-D12-S15-DP
S5-DIP
-DIP
2-DIP
V15-DIP
VRB38-S5-DIP
VRB3-D48-S9-DIP
VRB3-D48-S12-DIP
VRB3-D48-S15-DIP
5
4.5~9.0
±20
±167
±125
±0
±200
±167
±125
±100
±200
±167
±125
±100
±200
±167
±125
±100
600
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
68
70
72
73
74
76
78
79
77
78
79
80
77
78
79
80
68
70
72
73
74
76
78
77
77
78
79
80
77
78
79
80
5
4.5~9.0
5
4.5~9.0
5
4.5~9.0
12
12
12
12
24
24
24
24
48
48
48
48
5
9.0~18.0
9.0~18.0
9.0~18.0
9.0~18.0
18.0~36.
18.0~36.0
18.0~36.0
36.0~72.0
4.5~9.0
5
.5~9.0
9
33
333
5
4.5~9.0
12
15
5
25
250
5
4.5~9.0
20
200
12
12
12
12
24
24
24
24
48
48
48
48
9.0~18.0
9.0~18.0
9.0~18.0
9.0~18.0
18.0~36.0
18.0~36.0
18.0~36.0
18.0~36.0
36.0~72.0
36.0~72.0
36.0~72.0
36.0~72.0
60
600
9
33
333
12
15
5
25
250
20
200
60
600
9
33
333
12
15
5
25
250
20
200
60
600
9
33
333
12
15
25
250
20
200
Notes:
1. ripple and noise are measured at 20 MHz BW
cui.com
For more information, please visit the product page.
CUI Inc │ SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/11/2012 │ page 2 of 5
PART NUMBER KEY
VR X 3 - DXX - X XX -DIP
Base Number:
Output:
S = single
D = dual
Packaging Style
Output Voltage
A = dual output voltage
Ex: VRA3-D5-D5-DIP
B = single output voltage
Ex: VRB3-D5-S5-DIP
Input Voltage
INPUT
parameter
conditions/description
min
tp
max
units
5 V model
12 V model
24 V model
48 V model
4.5
0
18.0
6.0
5
9.0
Vdc
Vdc
Vdc
Vdc
12
4
48
18.0
36.0
72.0
operating input voltage
OUTPUT
parameter
line regulation
conditions/description
min
typ
max
units
input voltage from low to high
±0.2
±0.5
%
measured from 10%
load to full load
VRA3 models
VR3 models
±0.5
±0.5
±1.0
±0.75
%
%
load regulation
positive
negative
±1
±3
±3
±5
%
%
voltage accuracy
ripple and noise
20 MHz bandwidth
50
300
100
mVp-p
kHz
switching frequency
temperature coefficient
100% load, input voltage nge
±0.03
%/°C
PROTECTIONS
parameter
onditionn
min
typ
max
max
units
short circuit protection
continuous
SAFETY AND COMPLIANCE
parameter
nditios/description
min
typ
units
Vdc
isolation voltage
isolation resistanc
isolation cacitance
MTBF
for 1 minute at 1 mA max.
at 500 Vdc
1,500
1,000
MΩ
input to output at 100 kHz / 1 V
85
pF
1,000,000
hours
RoHS compliant
yes
MENTAL
conditions/description
min
-40
-55
typ
max
85
units
°C
omperature
storaemperature
storage humidity
125
95
°C
non-condensing
%
temperature rise
at full load
15
°C
lead temperature
1.5 mm from case for 10 seconds
300
°C
cui.com
For more information, please visit the product page.
CUI Inc │ SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/11/2012 │ page 3 of 5
DERATING CURVES
1. output power vs. ambient temperature
100
80
60
40
20
-40
-20
0
20
40
60 71
85
100
120
Ambient Temperature (°C)
MECHANICAL
parameter
dimensions
conditions/description
min
yp
max
units
1.252 x 0.787 x 0.394 (31.80 x 20.00 x 100 mm)
stainless steel
inch
case material
weight
14
g
MECHANICAL DRAWING
units: mm [inches]
tolerance: ±0.25 [±0.010]
pin section tolerance: ±0.10 mm [±0.004]
∅1.00 [0.039]
31.80 [1.252]
3
2
23 22
16 15 14
(ottom View)
2
3
9 10 11
23 2
16 15 14
2[0.100]
2.54 [0.100]
22.86 [0.900]
22.86 ]
4.47 [0.176]
PIN CONNECTIONS
SERIES
PIN
2,3
VRA3
FUNCTION
GND
NC
VRB3
FUNCTION
GND
0 V
9
10,15
11
NC
NC
(Side View)
0.50 [0.020]
NC
-Vo
14
+Vo
+Vo
16
0 V
0 V
22,23
+Vin
+Vin
cui.com
For more information, please visit the product page.
CUI Inc │ SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/11/2012 │ page 4 of 5
APPLICATION NOTES
1. Requirement on Output Load
In order to ensure the product operates efficiently and reliably, make sure the specified range of input voltage is not exc
the minimum output load is not less than 10% load. If the actual load is less than the specified minimum load, the out
increase sharply while its efficiency and reliability will reduce greatly. If the actual output power is very small, please ad
appropriate resistor as extra loading.
2. Recommended Circuit
All VRX3 converters have been tested according to the following recommended testing circuit before leavinhe facty. This sers
should be tested under load, never under no load (Figure 1).
VRA3
VRB3
Figure 1
+Vo
0V
Vin
Vin
+Vo
0V
Cout
Cout
Cin
Cin
ut
DC DC
DC DC
GND
GND
-Vo
However, the capacitance of the output filter capacitor must be proper. If the capacitance is to big, a rtuproblem might arise.
For every channel of output, provided the safe and reliable operation is ensured, the greatest cpacitance of its filter capacitor see
(Table 1).
General:
5, 12 V
24, 48 V
100 μF
10 ~ 22 μF
VRA3 Vout
(Vdc)
Cout
μF)
VRB3 Vout
(Vdc)
Cout
(μF)
Cin
Cout
10 μF / 100 mA
5
±9
680
470
330
220
5
9
1,000
680
Tabl1
±1
±15
12
15
470
330
3. Input Current
While using unstable power source, please ensure e put volte and ripple voltage do not excced indexes of the converter. The
preceding power source must be able to provide for onverter fint starting current Ip.
General: Ip ≤1.4*Iin-max
Ip
Input Voltage
Range
Input Voltage (V)
4. No parallel connetion oplug and ply
cui.com
For more information, please visit the product page.
CUI Inc │ SERIES: VRX3-DIP │ DESCRIPTION: DC-DC CONVERTER
date 09/11/2012 │ page 5 of 5
REVISION HISTORY
rev.
description
date
1.0
initial release
05/09/2012
09/11/012
1.01
V-Infinity branding removed
The revision history provided is for informational purposes only and is believed to be accurate.
Headquarters
20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.
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