Technical Specification
w/ Baseplate
Quarter -brick
Mega Series
High Efficiency, Isolated DC/DC Converter, with Baseplate
This technical addendum contains additional specifica-
Top View
Bottom View
tions for the baseplated verison of the PowerQor Mega
series of low profile quarter-brick converters. This unit is
manufactured by adding an industry standard size base-
plate to the non-baseplated quarter-brick converter using
standard mounting techniques. The baseplated version
PQ60xxxQMMxx
DC/DC Converter
allows for optional heatsinking in severe thermal environ-
ments or for mounting to a cold plate. Please refer to the
QMLxx specification sheets for all specifications that are
not included in this addendum.
(58.9)
2.32
MECHANICAL DIAGRAM
(47.2)
0.23
1.86
(5.8)
0.22
(5.6)
Side View
0.412 + 0.021
(10.46 + 0.53)
(11.1)
0.44
0.150 0.300 0.450
(11.43)
(3.81) (7.62)
(15.24)
0.600
0.300
(7.62)
0.019 +.013
(0.48 +0.33)
Bottom side
Clearance
See Note 12
Lowest
Component
Load Board
(3.68)
See Note 6
(15.24)
0.600
(26.2)
1.03
0.145
Top View
Pin farside typical
(37.3)
1.47
NOTES
1) M3 screws used to bolt unit’s baseplate to other surfaces (such as heatsink)
must not exceed 0.138” (3.50 mm) depth below the surface of the baseplate
2) Applied torque per screw should not exceed 6in-lb. (0.7 Nm)
3) Baseplate flatness tolerance is 0.004” (.10mm) TIR for surface
4) Pins 1-3, 5-7 are 0.040” (1.02mm) diameter with 0.080” (2.03 mm) diameter
standoff shoulders.
5) Pins 4 and 8 are 0.062” (1.57 mm) diameter with 0.100” (2.54 mm)
diameter standoff shoulders.
6) Other pin extension lengths available. Recommended pin length is 0.03”
(0.76mm) greater than the PCB thickness.
7) All Pins: Material - Copper Alloy; Finish - Tin/Lead over Nickel plate
8) Undimensioned components shown are for visual reference only.
9) Weight: 2.1 oz. (61 g) typical
10) All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
11) Workmanship: Meets or exceeds IPC-A-610C Class II
12)
UL/TUV standards require a clearance greater than 0.04” (1.02mm)
between input and output for Basic insulation. This issue should be considered
if any copper traces are on the top side of the user’s board. Note that the fer-
rite cores are considered part of the input/primary circuit.
0.15
(3.8)
(50.8)
2.00
M3 Threaded Insert
4 Places
See Note 1 & 2
SPECIFICATIONS
(that differ from QMLxx specs)
Weight:
add 0.94 oz. (27 g)
to
non-baseplated unit weight
100°C
Max Baseplate Temp Limit:
Storage Temperature:
- 40°C to +125°C
All other specifications are identical to non-baseplated
PowerQor converters of equivalent input voltage, output
voltage and output current.
Doc.# 005-2QMMXXE Rev. D
2/9/04
Page 1
Product # PQ60xxxQMMxx
Phone 1-888-567-9596
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