Seagate ST3250823SCE manual Electromagnetic immunity, Reliability, Radio frequency environments

2.11Electromagnetic 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 4:	Radio frequency environments
			Performance	Reference
Test		Description	level	standard
Electrostatic discharge		Contact, HCP, VCP: ± 4 kV; Air:	B	EN 61000-4-2: 95
		± 8 kV
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 com-	B	EN 61000-4-5: 95
		mon, AC mains
Conducted RF immunity		150 kHz to 80 MHz, 3 Vrms,	A	EN 61000-4-6: 97
		80% AM with 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

2.12	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)
Service Life		5 Years
Preventive maintenance		None required

12 DB35 Serial ATA Product Manual, Rev. E