GE Industrial Solutions NaOS NXA025 SMT - Manual (Page 18)

Data Sheet
October 5, 2009 Naos TM NXA025 SMT Non-isolated Power Modules:
10 – 14Vdc Input; 0.8Vdc to 5.5Vdc Output; 25A output current
LINEAGE POWER 18
Surface Mount Information
Packaging Details
The surface mount versions of the NXA025-S series
modules are supplied as standard in the plastic tray
shown in Figure 30. The tray has external
dimensions of 136mm (W) x 322.6mm (L) x 18.4mm
(H) or 5.35in (W) x 12.7in (L) x 0.72in (H).
Figure 30. Surface Mount Packaging Tray
Tray Specification
Material Antistatic coated PVC
Max temperature 65 o C
Max surface resistivity 10 12 Ω/sq
Color Clear
Capacity 15 power modules
Min order quantity 45 pcs (1box of 3 full trays)
Each tray contains a total of 15 power modules. The
trays are self-stacking and each shipping box will
contain 3 full trays plus one empty hold down tray
giving a total number of 45 power modules.
Pick and Place
The NXA025-S series of DC-to-DC power modules
use an open-frame construction and are designed for
surface mount assembly within a fully automated
manufacturing process.
The NXA025-S series modules are fitted with two
Kapton labels designed to provide a large flat surface
for pick and placing. The labels are located covering
the Center of Gravity of the power module. The labels
meets all the requirements for surface-mount
processing, as well as meeting UL safety agency
standards. The labels will withstand reflow
temperatures up to 300
°C. The labels also carry
product information such as product code, date and
location of manufacture. One of the two labels may
be used as a pick-and-place location.
Figure 31. Pick and Place Location.
Nozzle Recommendations
The module weight has been kept to a minimum by
using open frame construction. Even so, they have a
relatively large mass when compared with
conventional SMT components. Variables such as
nozzle size, tip style, vacuum pressure and placement
speed should be considered to optimize this process.
The minimum recommended nozzle diameter for
reliable operation is 6mm. The maximum nozzle outer
diameter, which will safely fit within the allowable
component spacing, is 9 mm.
Oblong or oval nozzles up to 11 x 9 mm may also be
used within the space available.
For further information please contact your local
Lineage Power technical representative.