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Technical Data Sheet
PartsTable / COMPONENT / HB28-1-A
HB28-1-A ✓ 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 input_phase: SINGLE FIRST OPERATING POWER RQMT, overall_width: 4.870 INCHES NOMINAL IN, overall_height: 2.070 INCHES NOMINAL IN, overall_length: 4.000 INCHES NOMINAL IN, features_provided: FILTER, input_voltage_rating: 240.0 AC VOLTS NOMINAL FIRST OPERATING POWER RQMT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6130-01-194-2570, 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
HB28-1-A
NSN: 6130-01-194-2570
FSC: 6130
CAGE: 54407 — POWER-ONE DC POWER SUPPLIES (USA)
SPECIFICATIONS
input_phaseSINGLE FIRST OPERATING POWER RQMT
overall_width4.870 INCHES NOMINAL IN
overall_height2.070 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
features_providedFILTER
input_voltage_rating240.0 AC VOLTS NOMINAL FIRST OPERATING POWER RQMT
output_current_rating1.0 DC AMPERES NOMINAL SINGLE POWER OUTPUT
output_voltage_rating28.0 DC VOLTS NOMINAL SINGLE POWER OUTPUT
output_connection_typeSOLDER LUG SINGLE POWER OUTPUT
end_item_identification4920-01-158-7271
output_connection_quantity2 SINGLE POWER OUTPUT
operating_ambient_temp_range+0.1 TO 50.0 CELSIUS DEGC
NSN6130-01-194-2570
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 HB28-1-A MFR OEM Platinum
KEY FEATURES
•
INPUT PHASE: SINGLE THIRD OPERATING POWER RQMT
•
INPUT VOLTAGE RATING: 100.0 AC VOLTS NOMINAL FOURTH OPERATING POWER RQMT
•
OPERATING AMBIENT TEMP RANGE: +0.1 TO 50.0 CELSIUS DEGC
•
OUTPUT CURRENT RATING: 1.0 DC AMPERES NOMINAL SINGLE POWER OUTPUT
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 WIDTH4.870 INCHES NOMINAL IN
INPUT PHASESINGLE THIRD OPERATING POWER RQMT
INPUT VOLTAGE RATING100.0 AC VOLTS NOMINAL FOURTH OPERATING POWER RQMT
INPUT VOLTAGE RATING220.0 AC VOLTS NOMINAL SECOND OPERATING POWER RQMT
OPERATING AMBIENT TEMP RANGE+0.1 TO 50.0 CELSIUS DEGC
INPUT PHASESINGLE SECOND OPERATING POWER RQMT
INPUT PHASESINGLE FIRST OPERATING POWER RQMT
OUTPUT CURRENT RATING1.0 DC AMPERES NOMINAL SINGLE POWER OUTPUT
INPUT VOLTAGE RATING120.0 AC VOLTS NOMINAL THIRD OPERATING POWER RQMT
OUTPUT VOLTAGE RATING28.0 DC VOLTS NOMINAL SINGLE POWER OUTPUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
54B6878H47Interchangeable
interchangeable cross-reference
interchangeable
816718Interchangeable
interchangeable cross-reference
interchangeable
MS51846-24Interchangeable
interchangeable cross-reference
interchangeable
28029NInterchangeable
interchangeable cross-reference
interchangeable
52921-360-5Interchangeable
interchangeable cross-reference
interchangeable
52921N CODE 5 PLUSInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HB28-1-A?
HB28-1-A is a POWER SUPPLY.
What parts can replace HB28-1-A?
There are 8 known substitutes for HB28-1-A: 54B6878H47, 816718, MS51846-24 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HB28-1-A?
HB28-1-A is cataloged in the Federal Logistics Information System (FLIS) under NSN 6130-01-194-2570. 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