40IMX7-05-8 Datasheet, PDF (14/14 Pages) Power-One – IMX7, IMS7 Series Data Sheet 7-Watt DC-DC Converters

IMX7, IMS7 Series Data Sheet
®
7-Watt DC-DC Converters
Installation Instruction
Installation of the converters must strictly follow the national
safety regulations in compliance with the enclosure,
mounting, creepage, clearance, casualty, markings, and
segregation requirements of the end-use application.
Connection to the system shall be made via a printed circuit
board; see Mechanical Data.
The converters should be connected to a secondary circuit.
Do not open the converter.
Ensure that a converter failure does not result in a hazardous
conditions.
To prevent excessive current flowing through the input lines in
case of a short-circuit, an external fuse specified in section
Input Fuse and Reverse Polarity Protection should be
installed in the non-earthed input supply line.
Standards and Approvals
The converters are approved according to UL/CSA 60950-1
and IEC 60950 -1 2^nd Edition.
The converters have been evaluated for:
• Building-in
• Basic insulation input to output, based on their maximum
input voltage
• Pollution degree 2 environment
• Connecting the input to a secondary circuit, which is
subject to a maximum transient rating of
- 1500 V for 20IMX7, 24IMS7, 40IMX7, 48IMS7
- 2000 V for 70IMX7
- 2500 V for 110IMX7.
The converters are subject to manufacturing surveillance in
accordance with the above mentioned standards.
Railway Applications
To comply with railway standards, all components are coated
with a protective lacquer (except option Z).
Protection Degree
The protection degree of the converters is IP 30, except open-
frame models (option Z).
Cleaning Liquids
IIn order to avoid possible damage, any penetration of
cleaning fluids should be prevented, since the power
supplies are not hermetical sealed.
However, open-frame models (option Z) leave the factory
unlacquered; they may be lacquered by the customer, for
instance together with the mother board. Cleaning agents are
not permitted – except washing at room temperature with
isopropyl alcohol. If necessary, the mother board must be
cleaned, before fitting the open-frame converter.
Note: Cleaning liquids may damage the adhesive joints of the
ferrite cores.
Isolation
The electric strength test is performed in the factory as a
routine test in accordance with EN 50116 and IEC/EN 60950,
and should not be repeated in the field. Power-One will not
honor any warranty claims resulting from electric strength
field tests.
Table 12: Electric strength test voltages
Characteristic
Input to output
20/40IMX 70IMX 110IMX
24/48IMS
Factory test >1 s
1.2
1.5
2.0
Equivalent DC volt. 1.5
2.0
2.5
Coupling
capacitance
1.2
1.2
1.2
Insulation resist.
at 500 VDC
>100
>100 >100
1 _{Between the outputs of double-output models}
o/o¹
0.1
0.15
-
-
Unit
kVAC
kVDC
nF
MΩ
Description of Options
Option M: SMD pins
This option allows surface mounting of the converters.
Option Z: Open Frame
For applications, where the protection by a housing is not
necessary or in the case that the motherboard should be
lacquered after fitting the converter; see Cleaning Liquids.
Option G: RoHS-6
Converters with a type designation ending by G are RoHS-
compliant for all six substances.
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical
components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written
consent of the respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
BCD20007-G Rev AE, 14-May-2012
Page 14 of 14
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