USB-Disk Module
3.0
AP-UMxxxxAUXXX-XXXTX
7
© 2015 Apacer Technology, Inc. Rev. 1.2
4.3 Environmental Specifications
Environmental specification of the USB-Disk Module (UDM) product family which follows the MIL-STD-
810F standards is available as shown in Table 4-3.
Table 4-3: Environmental Specifications
0°C to 70°C (Std.); -40°C to 85°C (Ext.)
Sine wave 10 Hz to 500 Hz, 50 m/s
2
, 3 axes (IEC 68-2-6, non-operating)
Half sine wave 50G, 6 axes, 18 times (IEC 68-2-27, non-operating)
4.4 MTBF
Mean Time Between Failures (MTBF) is predicted based on reliability data for the individual components
in this device. The measurement assumes that device failure rate can be generated by the sum of failure
rates in each component and a steady state failure rate can be predicated as equal to or greater than
1,000,000 hours.
Notes about the MTBF:
The MTBF is predicated and calculated based on “Bellcore Analysis Method 1”.