Seagate ST3500841NS manual Electromagnetic immunity, Reliability, Radio frequency environments

2.10Electromagnetic immunity

When properly installed in a representative host system, the drive operates without errors or degradation in performance when subjected to the radio frequency (RF) environments defined in the following table:

Table 3:	Radio frequency environments
Test		Description	Performance level	Reference standard
Electrostatic discharge		Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV	B	EN 61000-4-2: 95
Radiated RF immunity		80 to 1,000 MHz, 3 V/m,	A	EN 61000-4-3: 96
		80% AM with 1 kHz sine		ENV 50204: 95
		900 MHz, 3 V/m, 50% pulse modulation @
		200 Hz
Electrical fast transient		± 1 kV on AC mains, ± 0.5 kV on	B	EN 61000-4-4: 95
		external I/O
Surge immunity		± 1 kV differential, ± 2 kV common, AC	B	EN 61000-4-5: 95
		mains
Conducted RF immunity		150 kHz to 80 MHz, 3 Vrms, 80% AM with	A	EN 61000-4-6: 97
		1 kHz sine
Voltage dips, interrupts		0% open, 5 seconds	C	EN 61000-4-11: 94
		0% short, 5 seconds	C
		40%, 0.10 seconds	C
		70%, 0.01 seconds	B

2.11	Reliability
Nonrecoverable read errors		1 per 1014 bits read, max
Annualized Failure Rate (AFR)		0.34% (nominal power, 25°C ambient temperature)
Contact start-stop cycles		50,000 cycles
		(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty
		cycle)
Warranty		5 years on distribution units.
		To determine the warranty for a specific drive, use a web browser to access the fol-
		lowing web page:
		www.seagate.com/support/service/
		From this page, click on the “Verify Your Warranty” link. You will be asked to provide
		the drive serial number, model number (or part number) and country of purchase.
		The system will display the warranty information for your drive.
Preventive maintenance		None required.

10 NL35 Series 7200.2 SATA Product Manual, Rev. C