PartsTable
Technical Data Sheet
581-031 ✓ Verified by PartsTable
LevelOne · 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

<b>HomePlug Pro Series</b><br>The LevelOne HomePlug Pro Series™ takes home networking to the next level. Following the HomePlug A/V standard, users will enjoy 200 Mbps throughput for all bandwidth-hungry applications, especially high-definition audio/ video.<br><br><b>HomePlug Pro PoE – Bringing Power over Ethernet to the Masses!</b><br>Usually Power over Ethernet is a feature only available to professional networking experts. But now end-users can take advantage of PLI-3110 as a professional PoE solution packed in a small device.<br><br><b>What is PoE?</b><br>Power over Ethernet allows data and power to be sent over a single Ethernet cable.

This is especially useful for deploying surveillance cameras around the home or office. It’s easy to run a cable up high in the ceiling, but how are you supposed to send power to the device?<br><br>PLI-3110 is the solution as it follows the 802.3af standard, offering 15.4 Watts to any PoEcompatible device.<br><br><b>What if my device isn’t PoE comp This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-463-7171, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
581-031
NSN: 5961-00-463-7171
FSC: 5961
CAGE: 92739 — AMPEX SYSTEMS CORP (USA)
SPECIFICATIONS
diameter0.312 INCHES NOMINAL IN
materialSTEEL OVERALL
overall_length0.450 INCHES MAXIMUM IN
mounting_methodTHREADED STUD(S)
overall_diameter0.667 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
surface_treatmentZINC OVERALL
under_head_length1.250 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
thread_series_designatorUNF
mounting_facility_quantity1
overall_width_across_flats0.667 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
NSN5961-00-463-7171
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 581-031 MFR LevelOne SEMICONDUCTOR DEVICE,DIODE
KEY FEATURES
SPECIFICATION/STANDARD DATA: 80131-RELEASE3944 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
MATERIAL: SILICON SEMICONDUCTOR
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 100.0 MAXIMUM REVERSE VOLTAGE, PEAK
OVERALL DIAMETER: 0.667 INCHES MAXIMUM IN
MOUNTING METHOD: THREADED STUD(S)
FEATURES PROVIDED: HERMETICALLY SEALED CASE
NOMINAL THREAD SIZE: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA80131-RELEASE3944 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
MATERIALSILICON SEMICONDUCTOR
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC100.0 MAXIMUM REVERSE VOLTAGE, PEAK
OVERALL DIAMETER0.667 INCHES MAXIMUM IN
OVERALL LENGTH0.450 INCHES MAXIMUM IN
MOUNTING METHODTHREADED STUD(S)
FEATURES PROVIDEDHERMETICALLY SEALED CASE
NOMINAL THREAD SIZE0.250 INCHES IN
MOUNTING FACILITY QUANTITY1
THREAD SERIES DESIGNATORUNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
1N3874Interchangeable
interchangeable cross-reference
interchangeable
RELEASE3944Interchangeable
interchangeable cross-reference
interchangeable
101-000026Interchangeable
interchangeable cross-reference
interchangeable
1N3879RInterchangeable
interchangeable cross-reference
interchangeable
1N3903Interchangeable
interchangeable cross-reference
interchangeable
1N3886Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 581-031?
581-031 is a SEMICONDUCTOR DEVICE,DIODE manufactured by LevelOne.
What parts can replace 581-031?
There are 18 known substitutes for 581-031: 1N3874, RELEASE3944, 101-000026 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 581-031?
581-031 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-463-7171. This indicates validated use in U.S. government and defense supply chains.
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