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Technical Data Sheet
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HD6556 ✓ Verified by PartsTable
— · SFP TRANSCEIVER
WHAT YOU NEED TO KNOW
SR = Short Range (multimode, 300m) | LR = Long Range (single-mode, 10km) DOM = Digital Optical Monitoring — most enterprise SFPs support it
MATCH ALL THREE: Speed + Wavelength + Brand compatibility
PRODUCT OVERVIEW

The SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: SILICON SEMICONDUCTOR, features_provided: HERMETICALLY SEALED CASE, terminal_type_and_quantity: 2 UNINSULATED WIRE LEAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-624-4479, 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
HD6556
NSN: 5961-00-624-4479
FSC: 5961
CAGE: 82577 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialSILICON SEMICONDUCTOR
features_providedHERMETICALLY SEALED CASE
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
NSN5961-00-624-4479
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 HD6556 MFR OEM SEMICONDUCTOR DEVICE,DIODE
KEY FEATURES
•
TERMINAL TYPE AND QUANTITY: 2 UNINSULATED WIRE LEAD
•
MATERIAL: SILICON SEMICONDUCTOR
•
FEATURES PROVIDED: HERMETICALLY SEALED CASE
TECHNICAL CHARACTERISTICS (FLIS)
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD
MATERIALSILICON SEMICONDUCTOR
FEATURES PROVIDEDHERMETICALLY SEALED CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
4-17406Interchangeable
interchangeable cross-reference
interchangeable
4-6046Interchangeable
interchangeable cross-reference
interchangeable
201988Interchangeable
interchangeable cross-reference
interchangeable
OM-66Interchangeable
interchangeable cross-reference
interchangeable
928886Interchangeable
interchangeable cross-reference
interchangeable
XM-36460-29-2000-O-LInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HD6556?
HD6556 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace HD6556?
There are 11 known substitutes for HD6556: 4-17406, 4-6046, 201988 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HD6556?
HD6556 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-624-4479. 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