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Technical Data Sheet
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RO303 ✓ Verified by PartsTable
— · PSU
WHAT YOU NEED TO KNOW
Always quote matching pair — mixed wattage causes throttling Platinum/Titanium = higher efficiency = lower power cost over time
AC or DC input? Verify customer site power
PRODUCT OVERVIEW

The POWER SUPPLY is a the manufacturer power supply unit built for continuous operation in enterprise server and storage platforms. Key specifications include overall_height: 5.290 INCHES MAXIMUM IN, overall_length: 10.750 INCHES MAXIMUM IN, input_voltage_rating: 105.0 AC VOLTS MINIMUM AND 130.0 AC VOLTS MAXIMUM SINGLE OPERATING POWER RQMT, output_current_rating: 3.0 DC AMPERES NOMINAL FIRST POWER OUTPUT, output_voltage_rating: 12.0 DC VOLTS NOMINAL FIRST POWER OUTPUT, end_item_identification: AUTOMATED SURFACE OBSERVING SYSTEM (ASOS). This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6130-01-390-2201, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
RO303
NSN: 6130-01-390-2201
FSC: 6130
CAGE: 24230 — RO ASSOCIATES INC (USA)
SPECIFICATIONS
overall_height5.290 INCHES MAXIMUM IN
overall_length10.750 INCHES MAXIMUM IN
input_voltage_rating105.0 AC VOLTS MINIMUM AND 130.0 AC VOLTS MAXIMUM SINGLE OPERATING POWER RQMT
output_current_rating3.0 DC AMPERES NOMINAL FIRST POWER OUTPUT
output_voltage_rating12.0 DC VOLTS NOMINAL FIRST POWER OUTPUT
end_item_identificationAUTOMATED SURFACE OBSERVING SYSTEM (ASOS)
ripple_voltage_at_full_load10.0 MILLIVOLTS PEAK FIRST POWER OUTPUT
operating_ambient_temp_range-20.0 TO 80.0 CELSIUS DEGC
electrical_power_source_relationshipOPERATING
NSN6130-01-390-2201
COMPONENT DIAGRAM
PULL TAB AIRFLOW —W PLATINUM 100-240V~ 50/60Hz OEM BACKPLANE CONN ~200 mm HOT-PLUG POWER SUPPLY | —W | Platinum AC input 100-240V | Redundant pair required | Match wattage in same chassis TITLE PSU —W PN RO303 MFR OEM Platinum
KEY FEATURES
•
OUTPUT VOLTAGE RATING: 12.0 DC VOLTS NOMINAL FIRST POWER OUTPUT
•
INPUT VOLTAGE RATING: 105.0 AC VOLTS MINIMUM AND 130.0 AC VOLTS MAXIMUM SINGLE OPERATING POWER RQMT
•
RIPPLE VOLTAGE AT FULL LOAD: 10.0 MILLIVOLTS PEAK SECOND POWER OUTPUT
•
OPERATING AMBIENT TEMP RANGE: -20.0 TO 80.0 CELSIUS DEGC
TYPICAL APPLICATIONS
  • Server power supply replacement (failed or degraded)
  • Redundant power upgrade for high-availability
  • Power capacity upgrade for GPU or expansion configurations
  • Hot-swap power maintenance in production environments
  • Spare inventory for break-fix operations
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH10.750 INCHES MAXIMUM IN
OVERALL HEIGHT5.290 INCHES MAXIMUM IN
OUTPUT VOLTAGE RATING12.0 DC VOLTS NOMINAL FIRST POWER OUTPUT
INPUT VOLTAGE RATING105.0 AC VOLTS MINIMUM AND 130.0 AC VOLTS MAXIMUM SINGLE OPERATING POWER RQMT
RIPPLE VOLTAGE AT FULL LOAD10.0 MILLIVOLTS PEAK SECOND POWER OUTPUT
OUTPUT VOLTAGE RATING12.0 DC VOLTS NOMINAL SECOND POWER OUTPUT
RIPPLE VOLTAGE AT FULL LOAD10.0 MILLIVOLTS PEAK FIRST POWER OUTPUT
OPERATING AMBIENT TEMP RANGE-20.0 TO 80.0 CELSIUS DEGC
OUTPUT CURRENT RATING3.0 DC AMPERES NOMINAL FIRST POWER OUTPUT
ELECTRICAL POWER SOURCE RELATIONSHIPOPERATING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
303Upgraded Successor
successor cross-reference
successor
875583-1Upgraded Successor
successor cross-reference
successor
1-197Upgraded Successor
successor cross-reference
successor
00073700600Upgraded Successor
successor cross-reference
successor
62828-90066-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RO303?
RO303 is a POWER SUPPLY.
What parts can replace RO303?
There are 5 known substitutes for RO303: 303, 875583-1, 1-197 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RO303?
RO303 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6130-01-390-2201. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026