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PartsTable / COMPONENT / 501B
501B ✓ 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

TRANSFORMER,POWER AUTOTRANSFORME. Key specifications include material: STEEL BODY, body_width: 3.625 INCHES NOMINAL IN, body_height: 4.188 INCHES NOMINAL IN, body_length: 3.750 INCHES NOMINAL IN, input_phase: SINGLE SINGLE OPERATING POWER RQMT, output_phase: SINGLE SINGLE POWER OUTPUT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-948-3011, 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
501B
NSN: 6625-00-948-3011
FSC: 6625
CAGE: 05157 — COHU, INC. DBA COHU ELECTRONIC'S DIVISION DIV ELECTRONICS DIVISION (USA)
SPECIFICATIONS
materialSTEEL BODY
body_width3.625 INCHES NOMINAL IN
body_height4.188 INCHES NOMINAL IN
body_length3.750 INCHES NOMINAL IN
input_phaseSINGLE SINGLE OPERATING POWER RQMT
output_phaseSINGLE SINGLE POWER OUTPUT
overall_width19.000 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_height7.000 INCHES NOMINAL IN
overall_length19.000 INCHES NOMINAL IN
reservoir_typeINTEGRAL
extended_length15.250 INCHES NOMINAL IN
NSN6625-00-948-3011
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER AUTOTRANSFORME TITLE COMPONENT PN 501B MFR TRANSFORMER,POWER AUTO
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
334761Interchangeable
interchangeable cross-reference
interchangeable
501Interchangeable
interchangeable cross-reference
interchangeable
501BInterchangeable
interchangeable cross-reference
interchangeable
501CInterchangeable
interchangeable cross-reference
interchangeable
2230002023Interchangeable
interchangeable cross-reference
interchangeable
501SPMInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501B?
501B is a TRANSFORMER,POWER AUTOTRANSFORME.
What parts can replace 501B?
There are 9 known substitutes for 501B: 334761, 501, 501B and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 501B?
501B is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-948-3011. 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