Cassette Style

100 Watt AC-DC Converters

S Series PFC

Edition 01/01.2001

17/27

Table 11: MTBF

Values at Specified

Type

Ground Benign

Ground Fixed

Ground Mobile

Unit

Case Temperature

40

°C40°C70°C50°C

LS 4000/5000

514'000

88'000

38'000

35'000

h

Table 10: Temperature specifications, values given are for an air pressure of 800...1200 hPa (800...1200 mbar)

Temperature

Standard -7

Option -9

Characteristics

Conditions

min

max

min

max

Unit

Ambient temperature

–25

71

–40

71

°C

Case temperature

–25

95

–40

95

Storage temperature

Not operational

–40

100

–55

100

Immunity to Environmental Conditions

Table 9: Environment specifications

Test method

Standard

Test conditions

Status

Ca

Damp heat

IEC/DIN IEC 60068-2-3

Temperature:

°C

Unit not

steady state

MIL-STD-810D section 507.2

Relative humidity:

operating

Duration:

56 days

Ea

Shock

IEC/EN/DIN EN 60068-2-27

Acceleration amplitude:

Unit

(half-sinusoidal)

MIL-STD-810D section 516.3

Bump duration:

6 ms

operating

Number of bumps:

18 (3 each direction)

Eb

Bump

IEC/EN/DIN EN 60068-2-29

Acceleration amplitude:

Unit

(half-sinusoidal)

MIL-STD-810D section 516.3

Bump duration:

6 ms

operating

Number of bumps:

6000 (1000 each direction)

Fc

Vibration

IEC/EN/DIN EN 60068-2-6

Acceleration amplitude:

0.35 mm (10...60 Hz)

Unit

(sinusoidal)

operating

Frequency (1 Oct/min):

10...2000 Hz

Test duration:

7.5 h (2.5 h each axis)

Fn

Vibration

IEC 60068-2-64

Unit

broad band

DIN 40046 part 23

Frequency band:

5...500 Hz

operating

random

MIL-STD-810D section 514.3

Acceleration magnitude:

(digital dontrol)

Test duration:

3 h (1 h each axis)

Kb

Salt mist, cyclic

IEC/EN/DIN IEC 60068-2-52

Concentration:

5% (30

°C)

Unit not

(sodium chloride

Duration:

2 h per cycle

operating

NaCl solution)

Storage:

40

°C, 93% rel. humidity

Storage duration:

22 h per cycle

Number of cycles:

3