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W5051556EK ✓ 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 TRANSISTOR is a the manufacturer industrial component. Key specifications include special_features: JUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY SEALED CASE, internal_configuration: JUNCTION CONTACT, semiconductor_material: SILICON, terminal_type_and_quantity: 3 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 5961-00-879-3089, 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
W5051556EK
NSN: 5961-00-879-3089
FSC: 5961
CAGE: S3118 — OERLIKON-BUEHRLE AG WERKZEUGMASCHINENFABRIK (CHE)
SPECIFICATIONS
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
NSN5961-00-879-3089
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 W5051556EK MFR OEM TRANSISTOR
KEY FEATURES
•
FEATURES PROVIDED: HERMETICALLY SEALED CASE
•
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
•
INTERNAL CONFIGURATION: JUNCTION CONTACT
•
SEMICONDUCTOR MATERIAL: SILICON
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDHERMETICALLY SEALED CASE
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
INTERNAL CONFIGURATIONJUNCTION CONTACT
SEMICONDUCTOR MATERIALSILICON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
2N706AInterchangeable
interchangeable cross-reference
interchangeable
033276Interchangeable
interchangeable cross-reference
interchangeable
226239Interchangeable
interchangeable cross-reference
interchangeable
7353118Interchangeable
interchangeable cross-reference
interchangeable
300-2424Interchangeable
interchangeable cross-reference
interchangeable
68413009601Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W5051556EK?
W5051556EK is a TRANSISTOR.
What parts can replace W5051556EK?
There are 16 known substitutes for W5051556EK: 2N706A, 033276, 226239 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W5051556EK?
W5051556EK is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-879-3089. 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