
Board Mountable
DC-DC Converters
IMS 7 Series
Edition 6/4.2000
11/16
Table 10: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar)
Temperature
Standard -9
Characteristics
Conditions
min
max
Unit
TA
Ambient temperature 1
Operational 2
–40
71
°C
TC
Case temperature
–40
95
TS
Storage temperature 1
Non operational
–40
100
1 MIL-STD-810D section 501.2 and 502.2
2 See Thermal Considerations
Table 11: MTBF
MTBF
Ground Benign
Ground Fixed
Ground Mobile
according to MIL-HDBK-217F
TC = 40°C
TC = 70°C
TC = 50°C
24 IMS 7-05-7
1'671'000 h
248'000 h
83'800 h
84'800 h
48 IMS 7-15-15-7
1'640'000 h
214'000 h
83'000 h
77'000 h
Immunity to Environmental Conditions
Table 9: Environmental testing
Test Method
Standard
Test Conditions
Status
Ca
Damp heat
IEC/DIN IEC 60068-2-3
Temperature:
40 ±2
°C
Unit not
steady state
MIL-STD-810D section 507.2
Relative humidity:
93 +2/-3 %
operating
Duration:
56 days
Ea
Shock
IEC/EN/DIN EN 60068-2-27
Acceleration amplitude:
50 gn = 490 m/s2
Unit
(half-sinusoidal)
MIL-STD-810D section 516.3
Bump duration:
11 ms
operating
Number of bumps:
18 (3 each direction)
Eb
Bump
IEC/EN/DIN EN 60068-2-29
Acceleration amplitude:
25 gn = 245 m/s2
Unit
(half-sinusoidal)
MIL-STD-810D section 516.3
Bump duration:
11 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)
MIL-STD-810D section 514.3
5 gn = 49 m/s2 (60...2000 Hz)
operating
Frequency (1 Oct/min):
10...2000 Hz
Test duration:
7.5 h (2.5 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