Seagate ST340810ACE, ST320410ACE, ST380020ACE, ST360020ACE Electromagnetic immunity, Reliability

14 U Series CE Family Product Manual, Rev. A

1.10 Electromagnetic 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:

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

1.11 Reliability

Nonrecoverable read errors	1 per 1013 bits read, max
Mean time between failures	600,000 power-on hours (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)
Preventive maintenance	None required

1.12Agency certification 1.12.1 Safety certification

The drives are recognized in accordance with UL 1950 and CSA C22.2

(950)and meet all applicable sections of IEC950 and EN 60950 as tested by TUV North America.