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Technical Data Sheet
PartsTable / COMPONENT / 10549121
10549121 ✓ 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 overall_length: 0.210 INCHES MAXIMUM0.210 INCHES MAXIMUM IN, mounting_method: TERMINALTERMINAL, terminal_length: 0.500 INCHES MINIMUM0.500 INCHES MINIMUM IN, overall_diameter: 0.230 INCHES MAXIMUM0.230 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPNJUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY SEALED CASEHERMETICALLY SEALED CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-106-7024, 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
10549121
NSN: 5961-00-106-7024
FSC: 5961
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
overall_length0.210 INCHES MAXIMUM0.210 INCHES MAXIMUM IN
mounting_methodTERMINALTERMINAL
terminal_length0.500 INCHES MINIMUM0.500 INCHES MINIMUM IN
overall_diameter0.230 INCHES MAXIMUM0.230 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPNJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACTJUNCTION CONTACT
semiconductor_materialSILICONSILICON
terminal_circle_diameter0.100 INCHES NOMINAL0.100 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
power_rating_per_characteristic300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
maximum_operating_temp_per_measurement_point200.0 CELSIUS JUNCTION200.0 CELSIUS JUNCTION DEGC
NSN5961-00-106-7024
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 10549121 MFR OEM TRANSISTOR
KEY FEATURES
•
OVERALL DIAMETER: 0.230 INCHES MAXIMUM0.230 INCHES MAXIMUM IN
•
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 200.0 CELSIUS JUNCTION200.0 CELSIUS JUNCTION DEGC
•
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASE: COLLECTORCOLLECTOR
•
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
•
INTERNAL CONFIGURATION: JUNCTION CONTACTJUNCTION CONTACT
•
SEMICONDUCTOR MATERIAL: SILICONSILICON
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.230 INCHES MAXIMUM0.230 INCHES MAXIMUM IN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT200.0 CELSIUS JUNCTION200.0 CELSIUS JUNCTION DEGC
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASECOLLECTORCOLLECTOR
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPNJUNCTION PATTERN ARRANGEMENT: NPN
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
INTERNAL CONFIGURATIONJUNCTION CONTACTJUNCTION CONTACT
OVERALL LENGTH0.210 INCHES MAXIMUM0.210 INCHES MAXIMUM IN
SEMICONDUCTOR MATERIALSILICONSILICON
FEATURES PROVIDEDHERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
TERMINAL LENGTH0.500 INCHES MINIMUM0.500 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
PSD114Interchangeable
interchangeable cross-reference
interchangeable
40-666-6158Interchangeable
interchangeable cross-reference
interchangeable
2N706Interchangeable
interchangeable cross-reference
interchangeable
2N703Interchangeable
interchangeable cross-reference
interchangeable
531-231-024Interchangeable
interchangeable cross-reference
interchangeable
300-2424Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10549121?
10549121 is a TRANSISTOR.
What parts can replace 10549121?
There are 8 known substitutes for 10549121: PSD114, 40-666-6158, 2N706 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10549121?
10549121 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-106-7024. 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