Data Sheet
August 2000
HW125F Power Modules; dc-dc Converters:
36 Vdc to 75 Vdc Input, 3.3 Vdc Output; 83.5 W
Features
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Low pro鏗乴e: 10.7 mm (0.42 in.)
Small size: 83.8 mm x 59.7 mm x 10.7 mm
(3.30 in. x 2.35 in. x 0.42 in.)
High power density
High ef鏗乧iency: 87% typical
Low noise, low EMI
Constant frequency
Open frame design; no case or potting
2:1 input voltage range
Overvoltage and overcurrent protection
Overtemperature protection
Remote sense
Remote on/off
Adjustable output voltage
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The HW125F Power Modules use advanced surface-mount
technology and deliver high-quality, ef鏗乧ient, and compact
dc-dc conversion.
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Applications
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Distributed power architectures
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Communications equipment
Computer equipment
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UL*
1950 Recognized,
CSA
鈥?/div>
C22.2 No. 950-95
Certi鏗乪d,
VDE
鈥?/div>
0805 (EN60950, IEC950) Licensed
CE mark meets 73/23/EEC and 93/68/EEC
directives
摟
Options
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Choice of remote on/off logic con鏗乬uration
Short pins: 3.68 mm
鹵
0.25 mm
(0.145 in.
鹵
0.010 in.)
Description
The HW125F Power Modules are open frame (no case, no potting) dc-dc converters that operate over an input
voltage range of 36 Vdc to 75 Vdc and provide a precisely regulated 3.3 Vdc output. The outputs are fully iso-
lated from the inputs, allowing versatile polarity con鏗乬urations and grounding connections. The modules have
a maximum power rating of 83.5 W at a typical full-load ef鏗乧iency of 87%.
*
UL
is a registered trademark of Underwriters Laboratories, Inc.
鈥?/div>
CSA
is a registered trademark of Canadian Standards Association.
鈥?/div>
VDE
is a trademark of Verband Deutscher Elektrotechniker e.V.
摟 This product is intended for integration into end-use equipment. All the required procedures for CE marking of end-use equipment should
be followed. (The CE mark is placed on selected products.)
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