IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
Conducted emission according to EN 55011/55022, class A,
can be achieved by adding an external common mode choke
and an additional ceramic capacitor. The filter components
should be placed as close as possible to the input of the
converter; see figure 15.
07114c
Vi+
Li
+
Converter
Ci
Table 12: Input filter components
–
Vi–
Model
Common mode choke
Ceramic cap
L1 (Murata)
C1
20IMX35
40IMX35
70IMX35
110IMX35
70 µH / 3.6 A, PLH10AN7003R6P2
4.7 µF / 50 V
160 µH / 2.1 A, PLH10AN1612R1P2 2.2 µF / 100 V
Fig. 15
External filter circuitry
290 µH / 1.2A, PLH10AN2911R2P2
370 µH / 1.0A, PLH10AN3711R0P2
1 µF / 200 V
1 µF / 200 V
Immunity to Environmental Conditions
Table 13: Mechanical and climatic stress
Test method
Standard
Test conditions
Status
Cab
Damp heat
steady state
IEC/EN 60068-2-78
MIL-STD-810D section 507.2
Temperature:
Relative humidity:
Duration:
40 ±2 °C
Converter
not
operating
93 +2/-3
%
56 days
--
Salt mist test
EN 50155:2007
sect. 12.2.10
class ST3 2
Temperature:
Duration:
35±2 °C
48 h
Converter
not
operating
sodium chloride
(NaCl) solution 2
Eb
Fc
Bump
IEC/EN 60068-2-29
Acceleration amplitude:
Bump duration:
25 gn = 245 m/s2
6 ms
Converter
operating
(half-sinusoidal)
MIL-STD-810D section 516.3
Number of bumps:
6000 (1000 in each direction)
Vibration
(sinusoidal)
IEC/EN 60068-2-6
MIL-STD-810D section 514.3
Acceleration amplitude:
0.35 mm (10 – 60 Hz)
5 gn = 49 m/s2 (60 - 2000 Hz)
10 – 2000 Hz
Converter
operating
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h in each axis)
Fh
Random vibration
broad-band
(digital control) and
guidance
IEC/EN 60068-2-64
Acceleration spectral density: 0.05 gn2/Hz
Converter
operating
Frequency band:
Acceleration magnitude:
Test duration:
8 – 500 Hz
4.9 grms
1.5 h (0.5 h in each axis)
Ea
--
Shock
IEC/EN 60068-2-27
Acceleration amplitude:
Bump duration:
50 gn = 490 m/s2
Converter
operating
(half-sinusoidal)
MIL-STD-810D section 516.3
11 ms
Number of bumps:
18 (3 in each direction)
Shock
EN 50155:2007 sect. 12.2.11
EN 61373 sect. 10, class B,
body mounted1
Acceleration amplitude:
Bump duration:
Number of bumps:
5.1 gn
30 ms
18 (3 in each direction)
Converter
operating
--
Simulated long life EN 50155:2007 sect. 12.2.11
Acceleration spectral density: 0.02 gn2/Hz
Converter
operating
testing at
EN 61373 sect. 8 and 9,
Frequency band:
Acceleration magnitude:
Test duration:
5 – 150 Hz
increased random
vibration levels
Body mounted1
0.8 gn rms
15 h (5 h in each axis)
1
Body mounted = chassis of a railway coach
Models without option Z
2
BCD20009-G Rev AC, 06-May-2013
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