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Technical Data Sheet
2N5181 ✓ 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: 0.230 INCHES MAXIMUM IN, mounting_method: THREADED STUD(S), special_features: JUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY SEALED CASE, nominal_thread_size: 0.164 INCHES IN, internal_configuration: JUNCTION CONTACT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-233-3849, 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
2N5181
NSN: 5961-00-233-3849
FSC: 5961
CAGE: 80131 — ELECTRONIC INDUSTRIES ASSOCIATION
SPECIFICATIONS
overall_length0.230 INCHES MAXIMUM IN
mounting_methodTHREADED STUD(S)
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
nominal_thread_size0.164 INCHES IN
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
mounting_facility_quantity1
terminal_type_and_quantity4 UNINSULATED WIRE LEAD
power_rating_per_characteristic180.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC AND 1.00 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC
NSN5961-00-233-3849
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 2N5181 MFR OEM TRANSISTOR
KEY FEATURES
NOMINAL THREAD SIZE: 0.164 INCHES IN
SEMICONDUCTOR MATERIAL: SILICON
POWER RATING PER CHARACTERISTIC: 180.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 3.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
INTERNAL CONFIGURATION: JUNCTION CONTACT
CURRENT RATING PER CHARACTERISTIC: 50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC AND 1.00 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC
TERMINAL TYPE AND QUANTITY: 4 UNINSULATED WIRE LEAD
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.164 INCHES IN
SEMICONDUCTOR MATERIALSILICON
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
POWER RATING PER CHARACTERISTIC180.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 3.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
INTERNAL CONFIGURATIONJUNCTION CONTACT
CURRENT RATING PER CHARACTERISTIC50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC AND 1.00 MILLIAMPERES MAXIMUM EMITTER CURRENT, DC
TERMINAL TYPE AND QUANTITY4 UNINSULATED WIRE LEAD
OVERALL LENGTH0.230 INCHES MAXIMUM IN
MOUNTING FACILITY QUANTITY1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
2N5183AInterchangeable
interchangeable cross-reference
interchangeable
0N129480Interchangeable
interchangeable cross-reference
interchangeable
SS5933Interchangeable
interchangeable cross-reference
interchangeable
RELEASE5595Interchangeable
interchangeable cross-reference
interchangeable
2N5184Interchangeable
interchangeable cross-reference
interchangeable
2N5180Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N5181?
2N5181 is a TRANSISTOR.
What parts can replace 2N5181?
There are 10 known substitutes for 2N5181: 2N5183A, 0N129480, SS5933 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2N5181?
2N5181 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-233-3849. This indicates validated use in U.S. government and defense supply chains.
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