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PartsTable / COMPONENT / 2N4091A
2N4091A ✓ 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, features_provided: HERMETICALLY SEALED CASEHERMETICALLY SEALED CASE, internal_configuration: FIELD EFFECTFIELD EFFECT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-078-6860, 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
2N4091A
NSN: 5961-00-078-6860
FSC: 5961
CAGE: C7191 — ADELCO ELEKTRONIK GMBH (DEU)
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
features_providedHERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
internal_configurationFIELD EFFECTFIELD EFFECT
semiconductor_materialSILICONSILICON
terminal_type_and_quantity3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
power_rating_per_characteristic1.8 WATTS MAXIMUM COLLECTOR POWER DISSIPATION1.8 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic10.00 MILLIAMPERES MAXIMUM GATE CURRENT10.00 MILLIAMPERES MAXIMUM GATE CURRENT
electrode_internally-electrically_connected_to_caseGATEGATE
NSN5961-00-078-6860
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 2N4091A MFR OEM TRANSISTOR
KEY FEATURES
•
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 40.0 MAXIMUM BREAKDOWN VOLTAGE, DRAIN-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, DRAIN-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE40.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
•
SEMICONDUCTOR MATERIAL: SILICONSILICON
•
MOUNTING METHOD: TERMINALTERMINAL
•
OVERALL DIAMETER: 0.230 INCHES MAXIMUM0.230 INCHES MAXIMUM IN
•
POWER RATING PER CHARACTERISTIC: 1.8 WATTS MAXIMUM COLLECTOR POWER DISSIPATION1.8 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
•
INTERNAL CONFIGURATION: FIELD EFFECTFIELD EFFECT
TECHNICAL CHARACTERISTICS (FLIS)
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC40.0 MAXIMUM BREAKDOWN VOLTAGE, DRAIN-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, DRAIN-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE40.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
OVERALL LENGTH0.210 INCHES MAXIMUM0.210 INCHES MAXIMUM IN
SEMICONDUCTOR MATERIALSILICONSILICON
MOUNTING METHODTERMINALTERMINAL
OVERALL DIAMETER0.230 INCHES MAXIMUM0.230 INCHES MAXIMUM IN
POWER RATING PER CHARACTERISTIC1.8 WATTS MAXIMUM COLLECTOR POWER DISSIPATION1.8 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
INTERNAL CONFIGURATIONFIELD EFFECTFIELD EFFECT
TERMINAL LENGTH0.500 INCHES MINIMUM0.500 INCHES MINIMUM IN
CURRENT RATING PER CHARACTERISTIC10.00 MILLIAMPERES MAXIMUM GATE CURRENT10.00 MILLIAMPERES MAXIMUM GATE CURRENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2N4091Interchangeable
interchangeable cross-reference
interchangeable
1855-0378Interchangeable
interchangeable cross-reference
interchangeable
10133078Interchangeable
interchangeable cross-reference
interchangeable
SN2418Interchangeable
interchangeable cross-reference
interchangeable
4826-329987Interchangeable
interchangeable cross-reference
interchangeable
329987Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N4091A?
2N4091A is a TRANSISTOR.
What parts can replace 2N4091A?
There are 13 known substitutes for 2N4091A: 2N4091, 1855-0378, 10133078 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2N4091A?
2N4091A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-078-6860. 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