IMX4 Series Data Sheet
4 Watt DC-DC Converters
Features
• RoHS lead-free-solder and lead-solder-exempted
products are available.
• Input voltage ranges up to 121 VDC
• Voltage withstand test 1500 VAC
• 1 or 2 isolated outputs up to 48 V
• Extremely wide input voltage ranges
• Immunity according to IEC/EN 61000-4-2, -3, -4, -5, -6
• High efficiency (typ. 83%)
8.5
0.34"
32
1.25"
20
0.8"
• Flexible load distribution on outputs
• Outputs no-load, overload, and short-circuit proof
• High reliability
• Operating ambient temperature –40 to +85 °C
• Thermal protection
• Industrial and alternative pinout
• DIL 24 case with 8.5 mm profile
Safety-approved to IEC 60950-1 2nd Ed and CSA/UL
60950-1 2nd Ed.
2
2 70IMX4 models
Description
built according to the international safety standards IEC/EN
60950-1 2nd Ed. 70IMX4 models are CE-marked.
The IMX4 Series of board-mountable 4-watt DC-DC converters
has been designed according to the latest industry
requirements and standards. The converters are particularly
suitable for use in mobile or stationary applications in trans-
port, industry, or telecom, where variable input voltages or high
transient voltages are prevalent.
A special feature is their small case size, DIL 24 with only
8.5 mm profile. The circuit is comprised of integrated planar
magnetics, and all components are automatically assembled
and solidly soldered onto a single PCB without any wire
connection. Thanks to the rigid mechanical design, the
converters withstand an extremely high level of shock and
vibrations. Careful consideration of possible thermal stresses
ensure the absence of hot spots providing long life in
environments where temperature cycles are a reality. The
thermal design allows operation at full load up to an ambient
temperature of 85 °C in free air without using any potting
material.
Covering a total input voltage range from 8.4 VDC up to
121 VDC with three different models, the converters are
available with single or dual output from 3.3 up to ±24 VDC
with flexible load distribution. Features include efficient input
and output filtering with unsurpassed transient and surge
protection, low output ripple and noise, consistently high
efficiency over the entire input voltage range and high
reliability as well as excellent dynamic response to load and
line changes.
Several options, such as open-frame or an alternative industrial
pinout, provide a high level of application-specific engineering
and design-in flexibility.
The converters exhibit basic insulation and are designed and
Table of Contents
Page
Page
Description ............................................................................. 1
Model Selection ..................................................................... 2
Functional Description ........................................................... 3
Electrical Input Data ............................................................... 4
Electrical Output Data ............................................................ 6
Electromagnetic Compatibility (EMC) .................................... 8
Mechanical Data .................................................................... 9
Immunity to Environmental Conditions ................................ 10
Safety and Installation Instructions ...................................... 10
Description of Options ......................................................... 11
Copyright © 2015, Bel Power Solutions Inc. All rights reserved.
MELCHER
The Power Partners.
BCD20006-G Rev AE, 16-Sep-2015
Page 1 of 12
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