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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 baseplate 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 environments 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 ferrite 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 100C
Max Baseplate Temp Limit: Storage Temperature:
- 40C to +125C
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
Technical Specification
w/ Baseplate
ATTACHING HEATSINKS
Follow the guidelines given below when attaching a heatsink to a PowerQor converter with baseplate. 1) A thermal interface material is required to assure proper heat transfer from the baseplate to the heatsink. Thermal grease may be used, or materials such as Thermalloy's Grafoil or Bergquist's HiFlow and SoftFace. Other similar products are available from many heatsink manufacturers. 2) Use four M3 threaded machine screws for attachment. The length of the screw will depend on the thickness of the heatsink baseplate. The maximum permissible screw length below the top surface of the baseplate is not to exceed 3.5mm (0.138") in order to prevent damage to any internal components. A recommended minimum screw length to ensure sufficient hold to the baseplate is 2.54mm (0.10"). 3) The screws should be tightened with a torque suitable to get a tight fitting of the heatsink against the thermal interface material and the baseplate. The applied torque per screw should not exceed 0.7 Nm (6 in-lb). Contact SynQor technical support for additional information.
Quarter -brick
Mega Series
PART NUMBERING SYSTEM
The part numbering system for SynQor's PowerQor DC/DC converters follows the format shown in the example below. For a complete listing of available part numbers, please refer to the SynQor web site.
PQ 60 033 Q M M 15 N K S Options Output Current Thermal Design Performance Level Package Size Output Voltage Input Voltage Product Family
The first 12 characters comprise the base part number and the last 3 characters indicate available options. Selected PowerQor modules are available with a baseplate. Before ordering basplated modules, one should consult the factory to ensure that the specific product is available in a baseplated version. The Mega series of single output quarter-bricks that have a baseplate should be designated with the letter "M" as the 10th character in the full 15 character part number. The other characters in the part number would follow the same format as a non-baseplated unit to indicate the desired input and output voltage, package size, performance level, rated current, enable logic, pin length and feature set. When ordering SynQor converters, please ensure that you use the complete 15 character part number.
Patents: SynQor is protected under various patents, including but not limited to U.S. Patent numbers 5,999,417; 6,222,742 B1; 6,594,159 B2; 6,545,890 B2.
Contact SynQor for further information:
Phone: Toll Free: Fax: E-mail: Web: Address:
978-849-0600 888-567-9596 978-849-0602 sales@synqor.com www.synqor.com 155 Swanson Road Boxborough, MA 01719
Phone 1-888-567-9596
Warranty SynQor offers a three (3) year limited warranty. Complete warranty information is listed on our web site or is available upon request from SynQor. Information furnished by SynQor is believed to be accurate and reliable. However, no responsibility is assumed by SynQor for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SynQor. Doc.# 005-2QMMXXE Rev. D 2/9/04 Page 2
Product # PQ60xxxQMMxx

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