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Technical Data Sheet
S44055 ✓ 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 MAXIMUM IN, transfer_ratio: 40.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER, mounting_method: TERMINAL, terminal_length: 0.500 INCHES MINIMUM IN, overall_diameter: 0.230 INCHES MAXIMUM IN, special_features: WEAPON SYSTEM ESSENTIAL; JUNCTION PATTERN ARRANGEMENT: NPN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-241-7917, 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
S44055
NSN: 5961-01-241-7917
FSC: 5961
CAGE: 07263 — FAIRCHILD SEMICONDUCTOR CORP (USA)
SPECIFICATIONS
overall_length0.210 INCHES MAXIMUM IN
transfer_ratio40.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
mounting_methodTERMINAL
terminal_length0.500 INCHES MINIMUM IN
overall_diameter0.230 INCHES MAXIMUM IN
special_featuresWEAPON SYSTEM ESSENTIAL; JUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
terminal_circle_diameter0.100 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
criticality_code_justificationFEAT
NSN5961-01-241-7917
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 S44055 MFR OEM TRANSISTOR
KEY FEATURES
MOUNTING METHOD: TERMINAL
TERMINAL LENGTH: 0.500 INCHES MINIMUM IN
FEATURES PROVIDED: HERMETICALLY SEALED CASE
POWER RATING PER CHARACTERISTIC: 1.2 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
TRANSFER RATIO: 40.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
JOINT ELECTRONIC DEVICE ENGINEERING COUNCIL/JEDEC/CASE OUTLINE DESIGNATION: TO-18
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODTERMINAL
TERMINAL LENGTH0.500 INCHES MINIMUM IN
FEATURES PROVIDEDHERMETICALLY SEALED CASE
POWER RATING PER CHARACTERISTIC1.2 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
TRANSFER RATIO40.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
OVERALL LENGTH0.210 INCHES MAXIMUM IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL; JUNCTION PATTERN ARRANGEMENT: NPN
JOINT ELECTRONIC DEVICE ENGINEERING COUNCIL/JEDEC/CASE OUTLINE DESIGNATIONTO-18
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT200.0 CELSIUS JUNCTION DEGC
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC15.0 MINIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
2N2369Interchangeable
interchangeable cross-reference
interchangeable
11076024Interchangeable
interchangeable cross-reference
interchangeable
386-7249P12Interchangeable
interchangeable cross-reference
interchangeable
JANTX2N2369AAInterchangeable
interchangeable cross-reference
interchangeable
9306-2001-051Interchangeable
interchangeable cross-reference
interchangeable
2N2369AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S44055?
S44055 is a TRANSISTOR.
What parts can replace S44055?
There are 18 known substitutes for S44055: 2N2369, 11076024, 386-7249P12 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S44055?
S44055 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-241-7917. This indicates validated use in U.S. government and defense supply chains.
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