Seagate ST3400820SCE, ST3250820SCE Nonoperating shock Disc models, Vibration, Operating vibration

2.9.5.2Nonoperating shock

2 Disc models

The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 350 Gs based on a nonrepetitive half-sine shock pulse of 2 msec duration.

3 and 4 Disc models

The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 300 Gs based on a nonrepetitive half-sine shock pulse of 2 msec duration.

2.9.6Vibration

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive mounting screws. Vibration may be applied in the X, Y or Z axis.

2.9.6.1Operating vibration

The maximum vibration levels that the drive may experience while meeting the performance standards speci- fied in this document are specified below.

5–22 Hz	0.25	Gs (Limited displacement)
22–350 Hz	0.50 Gs
350–500 Hz	0.25	Gs

2.9.6.2Nonoperating vibration

The maximum nonoperating vibration levels that the drive may experience without incurring physical damage or degradation in performance when subsequently put into operation are specified below.

5–22 Hz	0.25 Gs (limited displacement)
22–350 Hz	5.0 Gs
350–500 Hz	1.0 Gs

DB35.3 Series Serial ATA Product Manual, Rev. D 19