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3C391 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include overall_width: 1.500 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, overall_height: 2.038 INCHES MAXIMUM IN, overall_length: 1.750 INCHES MAXIMUM IN, mounting_method: BRACKET(S) AND TAB SINGLE GROUP, frequency_rating: 10.0 KILOHERTZ NOMINAL SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-275-0713, 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
3C391
NSN: 5950-01-275-0713
FSC: 5950
CAGE: 04620 — RAYCO ELECTRONIC MANUFACTURING, INC. DIV RAYCO ELECTRONICS MFG INC (USA)
SPECIFICATIONS
overall_width1.500 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
overall_height2.038 INCHES MAXIMUM IN
overall_length1.750 INCHES MAXIMUM IN
mounting_methodBRACKET(S) AND TAB SINGLE GROUP
frequency_rating10.0 KILOHERTZ NOMINAL SINGLE COMPONENT
mounting_tab_width0.400 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp105.0 CELSIUS DEGC
winding_operating_current4.0 AMPERES DC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
winding_operating_voltage7.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
terminal_type_and_quantity12 PIN
NSN5950-01-275-0713
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN 3C391 MFR TRANSFORMER,POWER
KEY FEATURES
•
INCLOSURE TYPE: FULLY INCLOSED
•
WINDING OPERATING CURRENT: 4.0 AMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
•
WINDING OPERATING VOLTAGE: 24.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
•
MOUNTING TAB WIDTH: 0.400 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INCLOSURE TYPEFULLY INCLOSED
WINDING OPERATING CURRENT4.0 AMPERES DC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
OVERALL HEIGHT2.038 INCHES MAXIMUM IN
OVERALL WIDTH1.500 INCHES MAXIMUM IN
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
WINDING OPERATING VOLTAGE24.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
WINDING OPERATING CURRENT1.5 AMPERES DC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
MOUNTING TAB WIDTH0.400 INCHES NOMINAL IN
TERMINAL TYPE AND QUANTITY12 PIN
WINDING OPERATING CURRENT0.5 AMPERES DC MAXIMUM SINGLE COMPONENT FOURTH SECONDARY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
21RVNL172AX1-203-06Interchangeable
interchangeable cross-reference
interchangeable
14115Interchangeable
interchangeable cross-reference
interchangeable
GGG-T-581Interchangeable
interchangeable cross-reference
interchangeable
A-A-364Interchangeable
interchangeable cross-reference
interchangeable
B94.9Interchangeable
interchangeable cross-reference
interchangeable
547813Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3C391?
3C391 is a TRANSFORMER,POWER.
What parts can replace 3C391?
There are 10 known substitutes for 3C391: 21RVNL172AX1-203-06, 14115, GGG-T-581 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3C391?
3C391 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-275-0713. 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