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Technical Data Sheet
PartsTable / TRANSCEIVER / 61257220
61257220 ✓ Verified by PartsTable
— · TRANSCEIVER · SFP_1G
WHAT YOU NEED TO KNOW
Transceivers — match specs to PN exactly. Clarify what the customer wants: OEM compatible or actual manufacturer, new or refurbished. Get serial numbers from the vendor before buying and validate with the manufacturer before purchase. We ship tested and validated. Key checks: Clarify OEM vs compatible. Get serial numbers BEFORE buying. Validate serials with manufacturer BEFORE purchase.
Some have holograms and serial number validation
PRODUCT OVERVIEW

Cisco 1000BASE-SX SFP Transceiver Module. Key specifications include special_features: GIGABIT ETHERNET SFP,LC CONNECTOR,SX TRANSCEIVER, end_item_identification: ETHERNET COMMUNICATION SYSTEM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-531-2767, 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
TRANSCEIVER→ SFP_1G→ 61257220
NSN: 7025-01-531-2767
FSC: 7025
CAGE: Z5565 — THALES AUSTRALIA LIMITED (AUS)
SPECIFICATIONS
special_featuresGIGABIT ETHERNET SFP,LC CONNECTOR,SX TRANSCEIVER
end_item_identificationETHERNET COMMUNICATION SYSTEM
NSN7025-01-531-2767
COMPONENT DIAGRAM
BAIL LATCH 10G SFP+ 850nm · SR (MMF, 300m) DOM: Digital Optical Monitoring TX RX LC DUPLEX 20-PIN EDGE CONNECTOR ~56.5 mm ~13.4mm SFP+ TRANSCEIVER | 10G | 850nm | SR (MMF, 300m) Hot-swappable | LC duplex fiber | DDM/DOM supported TITLE SFP+ XCVR PN 61257220 MFR OEM Cisco 1000BASE-SX SFP Transceiver Module
TYPICAL APPLICATIONS
  • Data center switch-to-switch interconnects
  • Server-to-storage fabric connectivity
  • Long-distance fiber optic links
  • High-speed uplink connections (10G/25G/40G/100G)
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESGIGABIT ETHERNET SFP,LC CONNECTOR,SX TRANSCEIVER
END ITEM IDENTIFICATIONETHERNET COMMUNICATION SYSTEM
SPECIAL FEATURESGIGABIT ETHERNET SFP,LC CONNECTOR,SX TRANSCEIVER
END ITEM IDENTIFICATIONETHERNET COMMUNICATION SYSTEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
GLC-SX-MMDUpgraded Successor
CISCO 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM
successor
20-0001501Upgraded Successor
successor cross-reference
successor
GLCSXMMDSTUpgraded Successor
successor cross-reference
successor
685-924-032Upgraded Successor
successor cross-reference
successor
7611518Upgraded Successor
successor cross-reference
successor
GLC-SX-MMD=Upgraded Successor
CISCO 1000BASE-SX SFP transceiver module, MMF, 850nm, DOM
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 61257220?
61257220 is a Cisco 1000BASE-SX SFP Transceiver Module. It is classified as a TRANSCEIVER (SFP_1G).
What parts can replace 61257220?
There are 20 known substitutes for 61257220: GLC-SX-MMD, 20-0001501, GLCSXMMDST and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 61257220?
61257220 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-531-2767. 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