Owner's manual
GE
Data Sheet
SSTW005A0F Barracuda™ Series; DC-DC Converter Power Modules
36-75Vdc Input; 3.3Vdc, 5A, 15W Output
March 26, 2013 ©2012 General Electric Company. All rights reserved. Page 2
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings
only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations
sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.
Parameter Device Symbol Min Max Unit
Input Voltage (Continuous) All V
IN
-0.3 80 Vdc
Transient (100ms) All V
IN, trans
-0.3 100 Vdc
Operating Ambient Temperature All T
A
-40 85 °C
(see Thermal Considerations section)
Storage Temperature All T
stg
-55 125 °C
Altitude* All
4000 m
I/O Isolation Voltage (100% factory Hi-Pot tested) All
2250 Vdc
* For higher altitude applications, contact your GE Sales Representative for alternative conditions of use.
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter Device Symbol Min Typ Max Unit
Operating Input Voltage All V
IN
36 48 75 V
dc
Input No Load Current
V
IN
= 48V
dc
, (I
O
= 0, module enabled) All I
IN,No load
30 mA
Input Stand-by Current
All I
IN,stand-by
4 6 mA
(V
IN
= 48V
dc
, module disabled)
Maximum Input Current (V
IN
=36V
dc
, I
O
=I
O, max
) All I
IN,max
1.1 A
dc
Inrush Transient All I
2
t 0.05 A
2
s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
IN
=0V to 75V
dc
, I
O
= I
Omax
;
see Test configuration section)
All 30 mA
p-p
Input Ripple Rejection (120Hz) All 60 dB
EMC, EN55022 See EMC Considerations section
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to being part of
complex power architecture. To preserve maximum flexibility, internal fusing is not included; however, to achieve maximum safety
and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 3 A
(see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input
current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information.