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Technical Data Sheet
2N4440A ✓ 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: 0.320 INCHES MAXIMUM IN, mounting_method: THREADED STUD(S), overall_diameter: 0.437 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY SEALED CASE, nominal_thread_size: 0.190 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-443-4413, 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
2N4440A
NSN: 5961-00-443-4413
FSC: 5961
CAGE: C7191 — ADELCO ELEKTRONIK GMBH (DEU)
SPECIFICATIONS
overall_length0.320 INCHES MAXIMUM IN
mounting_methodTHREADED STUD(S)
overall_diameter0.437 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
nominal_thread_size0.190 INCHES IN
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
thread_series_designatorUNF
mounting_facility_quantity1
overall_width_across_flats0.437 INCHES MAXIMUM IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
NSN5961-00-443-4413
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 2N4440A MFR OEM TRANSISTOR
KEY FEATURES
MOUNTING FACILITY QUANTITY: 1
FEATURES PROVIDED: HERMETICALLY SEALED CASE
THREAD SERIES DESIGNATOR: UNF
SPECIFICATION/STANDARD DATA: 80131-RELEASE5400 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
NOMINAL THREAD SIZE: 0.190 INCHES IN
SEMICONDUCTOR MATERIAL: SILICON
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING FACILITY QUANTITY1
FEATURES PROVIDEDHERMETICALLY SEALED CASE
THREAD SERIES DESIGNATORUNF
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
SPECIFICATION/STANDARD DATA80131-RELEASE5400 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
NOMINAL THREAD SIZE0.190 INCHES IN
SEMICONDUCTOR MATERIALSILICON
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
POWER RATING PER CHARACTERISTIC11.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
OVERALL WIDTH ACROSS FLATS0.437 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
505073Interchangeable
interchangeable cross-reference
interchangeable
T00002N4427Y0Interchangeable
interchangeable cross-reference
interchangeable
2N4427Interchangeable
interchangeable cross-reference
interchangeable
153-3030-001Interchangeable
interchangeable cross-reference
interchangeable
2N4440Interchangeable
Same NIIN cross-reference
interchangeable
RELEASE5400Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N4440A?
2N4440A is a TRANSISTOR.
What parts can replace 2N4440A?
There are 6 known substitutes for 2N4440A: 505073, T00002N4427Y0, 2N4427 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2N4440A?
2N4440A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-443-4413. This indicates validated use in U.S. government and defense supply chains.
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