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PartsTable / COMPONENT / B2603
B2603 ✓ 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 body_width: 2.375 INCHES NOMINAL IN, body_height: 3.812 INCHES NOMINAL IN, body_length: 2.750 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, mounting_method: THREADED STUD(S) SINGLE GROUP, frequency_rating: 60.0 HERTZ 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 5950-00-348-2798, 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
B2603
NSN: 5950-00-348-2798
FSC: 5950
CAGE: 88932 — NORTHROP GRUMMAN CORP PRECISION PRODUCTS PLANT (USA)
SPECIFICATIONS
body_width2.375 INCHES NOMINAL IN
body_height3.812 INCHES NOMINAL IN
body_length2.750 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating60.0 HERTZ NOMINAL SINGLE COMPONENT
winding_shielding_methodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
winding_operating_current10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
winding_operating_voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity6 SOLDER STUD
winding_function_and_quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
NSN5950-00-348-2798
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN B2603 MFR TRANSFORMER,POWER
KEY FEATURES
•
BODY LENGTH: 2.750 INCHES NOMINAL IN
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
WINDING OPERATING VOLTAGE: 40.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
•
BODY HEIGHT: 3.812 INCHES NOMINAL IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
•
MOUNTING METHOD: THREADED STUD(S) SINGLE GROUP
TECHNICAL CHARACTERISTICS (FLIS)
BODY LENGTH2.750 INCHES NOMINAL IN
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
WINDING OPERATING VOLTAGE40.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
BODY HEIGHT3.812 INCHES NOMINAL IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
WINDING OPERATING VOLTAGE6.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
MOUNTING METHODTHREADED STUD(S) SINGLE GROUP
WINDING SHIELDING METHODINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
T113Interchangeable
interchangeable cross-reference
interchangeable
81T3123A2Interchangeable
interchangeable cross-reference
interchangeable
15129Interchangeable
interchangeable cross-reference
interchangeable
A3105Interchangeable
interchangeable cross-reference
interchangeable
55603Interchangeable
interchangeable cross-reference
interchangeable
43-1562Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B2603?
B2603 is a TRANSFORMER,POWER.
What parts can replace B2603?
There are 17 known substitutes for B2603: T113, 81T3123A2, 15129 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B2603?
B2603 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-348-2798. 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