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参数资料
| 型号： | DSR2005-6 |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 20 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 8/11页 |
| 文件大小： | 394K |
| 代理商： | DSR2005-6 |
SR Series
DC-DC Converters <40 Watt
Industrial Environment
Edition 4/6.99
6/11
MELCHER
The Power Partners.
Immunity to Environmental Conditions
Table 4: Mechanical stress
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:
100 gn = 981 m/s2
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:
40 gn = 392 m/s2
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)
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)
Table 5: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar)
Temperature
Standard -7 3
Option -6 4
CharacteristicsConditions
min
max
min
max
Unit
TA
Ambient temperature 1
Operational 2
–25
71
–25
71
°C
TC
Case temperature
–25
85
–25
85
TS
Storage temperature 1
Non operational
–40
85
–40
85
1 MIL-STD-810D section 501.2 and 502.2
2 See: Thermal Considerations
3 Plastic semiconductor devices
4 Hermetic semiconductor devices
Table 6: MTBF and device hours
MTBF
Ground Fixed
Ground Mobile
MTBF acc. to MIL-HDBK-217D
TC = 40°C
TC = 70°C
TC = 40°C
TC = 70°C
Standard -7
155'000 h
69'000 h
31'500 h
13'000 h
Option -6
100'000 h
46'000 h
28'000 h
18'000 h
1Statistical values, based on an average of 4300 working hours per year and in general field use
Thermal Considerations
If a converter is located in free, quasi-stationary air (con-
vection cooling) at the indicated maximum ambient tem-
perature
TA max (see table: Temperature specifications) and
is operated at its nominal input voltage and output current,
the temperature measured at the
Measuring point of case
temperature TC (see: Mechanical Data) will approach the
indicated value
TC max after the warm-up phase. However,
the relationship between
TA and TC depends heavily on the
conditions of operation and integration into a system. The
thermal conditions are influenced by input voltage, output
current, airflow and temperature of surrounding compo-
nents and surfaces.
TA max is therefore, contrary to TC max,
an indicative value only.
Caution: The installer must ensure that under all operat-
ing conditions
TC remains within the limits stated in the
table:
Temperature specifications.
Note: Sufficient forced cooling or an additional heat sink al-
lows
TA to be higher than 71
°C (e.g. 85°C) as long as
TC max is not exceeded.
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