Seagate ST9200421AS manual Electromagnetic immunity, Reliability, Radio frequency environments

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2.12Electromagnetic 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 6:

Radio frequency environments

 

 

 

 

 

 

 

 

 

 

Performance

Reference

Test

 

Description

level

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 external I/O

B

EN 61000-4-4: 95

 

 

 

 

Surge immunity

± 1 kV differential, ± 2 kV common, AC mains

B

EN 61000-4-5: 95

 

 

 

 

Conducted RF immunity

150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz

A

EN 61000-4-6: 97

 

 

sine

 

 

 

 

 

 

Power Frequency H-field

1 A/m, 50Hz/60Hz, 3 axes

A

EN 61000-4-8: 97

immunity

 

 

 

 

 

 

 

 

Voltage dips, interrupts

30% Reduction for 25 cycles

C

EN 61000-4-11: 94

 

 

>95% Reduction for 250 cycles

C

 

 

 

>95%, 0.5 cycles

B

 

 

 

 

 

 

2.13

Reliability

 

 

 

Measurement type

Specification

 

 

Nonrecoverable read errors

1 per 1014 bits read, max.

Annualized Failure Rate (AFR)

<0.48%

 

 

Load/Unload (U/UL)

 

25°C, 50% relative humidity

600,000 software-controlled power on/off cycles

 

 

50,000 hard power on/off cycles

32°C, 80% relative humidity

600,000 software-controlled power on/off cycles

5°C, 80% relative humidity

50,000 hard power on/off cycles

5°C, 10% relative humidity

 

55°C, 16% relative humidity

 

 

 

 

Warranty

 

5 years on distribution units.

 

 

To determine the warranty for a specific drive, use a web browser to access the

 

 

following web page:

 

 

www.seagate.com/support/service/

 

 

From this page, click on the “Verify Your Warranty” link. You will be asked to pro-

 

 

vide the drive serial number, model number (or part number) and country of pur-

 

 

chase. The system will display the warranty information for your drive.

 

 

 

2.13.1Free Fall Protection feature

The Free Fall Protection feature provides enhanced data protection against shock events that may occur while the drive is operating. This feature is designed to decrease the likelihood of data loss by detecting a free fall event and unloading the actuator before a shock takes place in falls of >8 inches (nominal). The drive uses a 0G sensor mounted on the printed circuit board assembly (PCBA) to sense this event.

Momentus 7200.3 SATA Product Manual, Rev. B

13

Image 19
Contents Momentus 7200.3 Sata Page Contents Momentus 7200.3 Sata Product Manual, Rev. B List of Figures Page Introduction About the Serial ATA interface Specification summary table Drive specificationsAFR Formatted capacity LBA modeCylinders Read/write heads Sectors per track 16,383 Default logical geometryPhysical organization Recording and interface technologyTypical seek times Physical characteristicsDrive specification Seek timeStart/stop times Power specificationsConducted noise Typical current profileVoltage tolerance Idle mode Power-management modesPower management modes Active modeEnvironmental specifications Acoustics Radio frequency environments Free Fall Protection featureElectromagnetic immunity ReliabilityKorean BCC Safety certificationAgency certification Electromagnetic compatibilityFCC verification European Union Restriction of Hazardous Substances RoHS Environmental protectionChina Restriction of Hazardous Substances RoHS Directive Page Momentus 7200.3 Sata Product Manual, Rev. B Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewMomentus 7200.3 Sata Product Manual, Rev. B Segment Pin Function Definition Serial ATA connector pin definitionsSignal Serial ATA Sata interfaceP10 Ground 2nd mate P11 Reserved Pin Function DefinitionCommand name Command code in hex ATA-standard commands Supported ATA commandsCommand name Command code in hex ATA-standard security commands Identify Device commandWord Description Value XxxxH Xx7FH Bit Word Description if bit is set to Bit WordSet Features command values Set Features commandA.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Technical Support Seagate Technology support servicesWarranty Support MySeagate Spp.seagate.com Internet Presales SupportData Recovery Services Authorized Service Centers Warranty ServiceCall Center Toll-free Direct dial Index ITE Sata Momentus 7200.3 Sata Product Manual, Rev. B Page Seagate Technology LLC
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Seagate has long been a prominent name in the storage industry, recognized for delivering reliable hard drives that cater to a variety of computing needs. The Seagate ST9200421AS, ST9160411ASG, ST980411ASG, ST9320421ASG, and ST9320421AS are notable hard drives that showcase the brand's commitment to performance and efficiency.

The ST9200421AS is a 2.5-inch SATA hard drive that boasts a storage capacity of 200GB. With a spindle speed of 5400 RPM, this model is optimized for low power consumption while maintaining adequate performance for everyday computing tasks. Its 8MB cache enhances data transfer rates, making it suitable for basic computing environments such as entry-level laptops.

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The ST9320421ASG offers a more substantial storage option of 320GB, matching the performance characteristics of its predecessors with a 5400 RPM spin rate. This drive includes features like QuietStep technology, which minimizes noise for a smoother user experience, making it excellent for quiet environments and multimedia applications.

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