NOV 28, 2006 revised to JAN 29, 2007

Page 10 of 13

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CPD Series Data Sheet

Immunity to Environmental Conditions

Table 9: Mechanical and climatic stress

Test method

Standard

Test conditions

Status

Ca

Damp heat

IEC/EN 60068-2-78

Temperature:

Converter

steady state

Relative humidity:

not

Duration:

56 days

operating

Ea

Shock

IEC/EN 60068-2-27

Acceleration amplitude:

Converter

(half-sinusoidal)

Bump duration:

11 ms

operating

Number of bumps:

18 (3 in each direction)

Eb

Bump

IEC/EN 60068-2-29

Acceleration amplitude:

Converter

(half-sinusoidal)

Bump duration:

6 ms

operating

Number of bumps:

6000 (1000 in each direction)

Fda

Random vibration

IEC/EN 60068-2-35

Converter

wide band

Frequency band:

20 – 500 Hz

operating

Reproducibility

Acceleration magnitude:

high

Test duration:

3 h (1 h in each axis)

Drop test

Converter in proper packing

0.75 m

3 directions

Not

operating

Temperatures

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

Temperature [°C]

Characteristics

Conditions

min

typ

max

min

typ

max

Ambient temperature

5

95

–25

50

5

95

–25

Storage temperature

Non operational

10

95

–40

85

Thermal resistance case to ambient in still air

2 K/W

1

See: Thermal Considerations.

2

≥105 °C

Reliability

Table 11: MTBF

Ratings at specified

Model

Ground

Ground fixed

Ground

Unit

case temperature

benign

mobile

40 °C

40 °C

70 °C

50 °C

MTBF acc. to

CPD250-4530

288 000

59 000

33 000

27 000

h

MIL-HDBK-217F, notice 2

3

Non condensing humidity