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Technical Data Sheet
PartsTable / COMPONENT / 845-321-2X
845-321-2X ✓ 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 SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: SILICON SEMICONDUCTOR, overall_length: 0.354 INCHES NOMINAL IN, mounting_method: THREADED STUD(S), overall_diameter: 0.635 INCHES NOMINAL IN, features_provided: HERMETICALLY SEALED CASE, nominal_thread_size: 0.250 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 5961-00-984-4847, 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
845-321-2X
NSN: 5961-00-984-4847
FSC: 5961
CAGE: 25965 — AMETEK PROGRAMMABLE POWER, INC. (USA)
SPECIFICATIONS
materialSILICON SEMICONDUCTOR
overall_length0.354 INCHES NOMINAL IN
mounting_methodTHREADED STUD(S)
overall_diameter0.635 INCHES NOMINAL IN
features_providedHERMETICALLY SEALED CASE
nominal_thread_size0.250 INCHES IN
thread_series_designatorUNF
mounting_facility_quantity1
terminal_type_and_quantity1 TAB, SOLDER LUG AND 1 THREADED STUD
specification/standard_data80131-RELEASE3291 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
current_rating_per_characteristic250.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
voltage_rating_in_volts_per_characteristic400.0 MAXIMUM REVERSE VOLTAGE, PEAK
NSN5961-00-984-4847
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 845-321-2X MFR OEM SEMICONDUCTOR DEVICE,DIODE
KEY FEATURES
•
TERMINAL TYPE AND QUANTITY: 1 TAB, SOLDER LUG AND 1 THREADED STUD
•
THREAD SERIES DESIGNATOR: UNF
•
SPECIFICATION/STANDARD DATA: 80131-RELEASE3291 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
•
MATERIAL: SILICON SEMICONDUCTOR
•
MOUNTING METHOD: THREADED STUD(S)
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 400.0 MAXIMUM REVERSE VOLTAGE, PEAK
TECHNICAL CHARACTERISTICS (FLIS)
TERMINAL TYPE AND QUANTITY1 TAB, SOLDER LUG AND 1 THREADED STUD
THREAD SERIES DESIGNATORUNF
SPECIFICATION/STANDARD DATA80131-RELEASE3291 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
MATERIALSILICON SEMICONDUCTOR
OVERALL LENGTH0.354 INCHES NOMINAL IN
MOUNTING METHODTHREADED STUD(S)
NOMINAL THREAD SIZE0.250 INCHES IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC400.0 MAXIMUM REVERSE VOLTAGE, PEAK
CURRENT RATING PER CHARACTERISTIC250.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
OVERALL DIAMETER0.635 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
1N3209RInterchangeable
interchangeable cross-reference
interchangeable
5257-029Interchangeable
interchangeable cross-reference
interchangeable
5257-29Interchangeable
interchangeable cross-reference
interchangeable
1N3211Interchangeable
interchangeable cross-reference
interchangeable
1N3212Interchangeable
interchangeable cross-reference
interchangeable
A52-1231Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-321-2X?
845-321-2X is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace 845-321-2X?
There are 14 known substitutes for 845-321-2X: 1N3209R, 5257-029, 5257-29 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 845-321-2X?
845-321-2X is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-984-4847. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026