PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 2N939
2N939 ✓ 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: 0.188 INCHES NOMINAL IN, mounting_method: TERMINAL, terminal_length: 0.500 INCHES MINIMUM IN, overall_diameter: 0.220 INCHES NOMINAL IN, special_features: JUNCTION PATTERN ARRANGEMENT: PNP, features_provided: HERMETICALLY 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 5961-00-943-7730, 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
2N939
NSN: 5961-00-943-7730
FSC: 5961
CAGE: 80131 — ELECTRONIC INDUSTRIES ASSOCIATION
SPECIFICATIONS
overall_length0.188 INCHES NOMINAL IN
mounting_methodTERMINAL
terminal_length0.500 INCHES MINIMUM IN
overall_diameter0.220 INCHES NOMINAL IN
special_featuresJUNCTION PATTERN ARRANGEMENT: PNP
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
terminal_circle_diameter0.100 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
specification/standard_data80131-RELEASE3667 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
power_rating_per_characteristic250.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
NSN5961-00-943-7730
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 2N939 MFR OEM TRANSISTOR
KEY FEATURES
•
POWER RATING PER CHARACTERISTIC: 250.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
•
SPECIFICATION/STANDARD DATA: 80131-RELEASE3667 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
•
SEMICONDUCTOR MATERIAL: SILICON
•
TERMINAL CIRCLE DIAMETER: 0.100 INCHES NOMINAL IN
•
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
•
TERMINAL LENGTH: 0.500 INCHES MINIMUM IN
•
OVERALL DIAMETER: 0.220 INCHES NOMINAL IN
•
INTERNAL CONFIGURATION: JUNCTION CONTACT
TECHNICAL CHARACTERISTICS (FLIS)
POWER RATING PER CHARACTERISTIC250.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
SPECIFICATION/STANDARD DATA80131-RELEASE3667 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
SEMICONDUCTOR MATERIALSILICON
TERMINAL CIRCLE DIAMETER0.100 INCHES NOMINAL IN
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
TERMINAL LENGTH0.500 INCHES MINIMUM IN
OVERALL DIAMETER0.220 INCHES NOMINAL IN
INTERNAL CONFIGURATIONJUNCTION CONTACT
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 35.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
MOUNTING METHODTERMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
HK5L6052-1Interchangeable
interchangeable cross-reference
interchangeable
90-058-1Interchangeable
interchangeable cross-reference
interchangeable
H605SK1441Interchangeable
interchangeable cross-reference
interchangeable
43208L1AInterchangeable
interchangeable cross-reference
interchangeable
M2104AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N939?
2N939 is a TRANSISTOR.
What parts can replace 2N939?
There are 5 known substitutes for 2N939: HK5L6052-1, 90-058-1, H605SK1441 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2N939?
2N939 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-943-7730. 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