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BCD.00197 Rev AG, 09-Mar-2021

Page 9 of 11

IBX15 Series

Boost Converters

© 2021 Bel Power Solutions & Protection

Immunity to Environmental Conditions

Table 9: 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:

Converter

not operating

Relative humidity:

Duration:

56 days

Ad

Cooling test

steady state

EN 50155:2007, clause 12.2.3

IEC/EN 60068-2-1

Temperature, duration:

-40 °C, 2 h

Converter

not operating

Performance test:

+25 °C

Bd

Dry heat test

steady state

EN 50155:2007, clause 12.2.4

IEC/EN 60068-2-2

Temperature:

70 °C

Converter

operating

Duration:

6 h

Ka

Salt mist test

sodium chloride

(NaCl) solution

EN 50155:2007, clause 12.2.10

IEC/EN 60068-2-11

class ST2

Temperature:

Converter

not operating

Duration:

16 h

Fc

Vibration

(sinusoidal)

IEC/EN 60068-2-6

MIL-STD-810D section 514.3

Acceleration amplitude:

0.35 mm (10 – 60 Hz)

5 g

2

(60 - 2000 Hz) Converter

operating

Frequency (1 Oct/min):

10 – 2000 Hz

Test duration:

7.5 h (2.5 h in each axis)

Fh

Random vibration

broad band (digital

control) & guidance

IEC/EN 60068-2-64

Acceleration spectral density: 0.05 g

n

2

/Hz

Converter

operating

Frequency band:

8 – 500 Hz

Acceleration magnitude:

4.9 g

n rms

Test duration:

1.5 h (0.5 h in each axis)

Ea

Shock

(half-sinusoidal)

IEC/EN 60068-2-27

MIL-STD-810D section 516.3

Acceleration amplitude:

50 g

2

Converter

operating

Bump duration:

11 ms

Number of bumps:

18 (3 in each direction)

Shock

EN 50155:2007, clause 12.2.11

EN 61373 sect. 10

Acceleration amplitude:

5.1 g

n

Converter

operating

Bump duration:

30 ms

Number of bumps:

18 (3 in each direction)

Simulated long life

testing at increased

random vibration

levels

EN 50155:2007, clause 12.2.11

EN 61373 sect. 8 and 9

Acceleration spectral density: 0.02 g

n

2

/Hz

Converter

operating

Frequency band:

5 – 150 Hz

Acceleration magnitude:

0.8 g

n rms

Test duration:

18 (3 in each direction)

1

Body mounted = chassis of a railway coach

Temperatures

Table 10: Temperature specifications, valid for an air pressure of 800 – 1200 hPa (800 – 1200 mbar)

Model

-0G (with case)

-0ZG (open frame)

Unit

Characteristics

Conditions

min

typ

max

min

typ

max

T

A

Ambient temperature

Converter operating

- 40

70

- 40

70

°C

T

- 40

100

- 40

120

T

S

Storage temperature

Not operational

- 55

85

- 55

85

Reliability

Table 11: MTBF and device hours

Ratings

Model

Ground benign

Ground fixed

Ground mobile

Unit

Case temperature

40 °C

40 °C

70 °C

50 °C

MTBF accord. to Bellcore SR-332, issue 1

36IBX15-50

850 000

425 000

160 000

104 000

h