Lineage Power 15
Data Sheet
April 2008 Converter: 36 Vdc to 75 Vdc Input, Dual Positive Outputs; 50W
JHW050 Dual Positive Output-Series Power Modules: dc-dc
Surface Mount Information
Packaging Details
The surface mount version, JHW050XX-S power mod-
ules are supplied as standard in the plastic tray shown
in Figure 28. The tray has external dimensions of
234mm (W) x 334mm (L) x 21.5mm (H). The tray is
designed to allow the use of either vacuum pick up or
mechanical grippers to automatically place the power
module.
Figure 28.Surface Mount Packaging Tray
Tray Specification
Material Antistatic coated PVC
Max temperature 65 °C
Max surface resistivity 10
12
Ω/sq
Colour Clear
Capacity per tray 12 power modules
Stacking pitch 12.98mm (0.511”)
Min order quantity 48 pcs (1box of 4 full trays)
Each tray contains a total of 12 power modules. The
trays are self-stacking and each shipping box will con-
tain 4 full trays plus one empty hold down tray giving a
total number of 48 power modules.
Pick and Place
All JHW050-S power modules come assembled with a
clip-on, removable “Cradle” which has a large flat sur-
face in its center to serve as a pick and place point for
automated vacuum equipment.
Figure 29.Removable Pick and Place Cradle
The cradle is molded out of high temperature plastic,
which is able to withstand the reflow process. Once sol-
dered onto the end-board assembly the cradle should
simply be removed by compressing the two edge clips.
The cradle material is electrically insulative. Hence,
standard-handling methods for ESD prevention, such
as specified in JEDEC JESD625-A, should be followed
while removing the cradle.
The module weight has been kept to a minimum be
using open frame construction. Even so, these mod-
ules have a large mass when compared with conven-
tional smt components. Variables such as nozzle size,
tip style, vacuum pressure and placement speed
should be considered to optimize this process.
The power module can also be automatically handled
using odd form placement equipment such as mechan-
ical grippers. the parallel edges of the modules PCB
offer suitable gripping points.
Pick and Place Cradle Specification
Material Questra™ EA 535
Vicat softening point 260 °C
Dielectric const IEC250 3.2
Volume resistivity 1.3x10
18
Colour Black
Recycling designation 7, sPS
