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AL4558420 ✓ 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_height: 0.230 INCHES MAXIMUM IN, overall_length: 0.230 INCHES MAXIMUM IN, mounting_method: TERMINAL, overall_diameter: 0.320 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED CASE, 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 5961-00-365-9658, 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
AL4558420
NSN: 5961-00-365-9658
FSC: 5961
CAGE: D0894 — ROHDE & SCHWARZ GMBH & CO. KOMMANDITGESELLSCHAFT DBA R & S (DEU)
SPECIFICATIONS
overall_height0.230 INCHES MAXIMUM IN
overall_length0.230 INCHES MAXIMUM IN
mounting_methodTERMINAL
overall_diameter0.320 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
overall_width_across_flats0.320 INCHES MAXIMUM IN
terminal_type_and_quantity4 RIBBON
specification/standard_data80131-RELEASE6091 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
internal_junction_configurationNPN
power_rating_per_characteristic10.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
NSN5961-00-365-9658
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 AL4558420 MFR OEM TRANSISTOR
KEY FEATURES
•
TERMINAL TYPE AND QUANTITY: 4 RIBBON
•
OVERALL DIAMETER: 0.320 INCHES MAXIMUM IN
•
POWER RATING PER CHARACTERISTIC: 10.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
•
INTERNAL CONFIGURATION: JUNCTION CONTACT
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 4.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
•
INTERNAL JUNCTION CONFIGURATION: NPN
•
CURRENT RATING PER CHARACTERISTIC: 750.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
•
MOUNTING METHOD: TERMINAL
TECHNICAL CHARACTERISTICS (FLIS)
TERMINAL TYPE AND QUANTITY4 RIBBON
OVERALL DIAMETER0.320 INCHES MAXIMUM IN
POWER RATING PER CHARACTERISTIC10.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
INTERNAL CONFIGURATIONJUNCTION CONTACT
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 4.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
INTERNAL JUNCTION CONFIGURATIONNPN
CURRENT RATING PER CHARACTERISTIC750.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
MOUNTING METHODTERMINAL
SEMICONDUCTOR MATERIALSILICON
SPECIFICATION/STANDARD DATA80131-RELEASE6091 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
2N5918Interchangeable
interchangeable cross-reference
interchangeable
PT6694Interchangeable
interchangeable cross-reference
interchangeable
618794-2Interchangeable
interchangeable cross-reference
interchangeable
TA7231Interchangeable
interchangeable cross-reference
interchangeable
352-0173-010Interchangeable
interchangeable cross-reference
interchangeable
RELEASE6091Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AL4558420?
AL4558420 is a TRANSISTOR.
What parts can replace AL4558420?
There are 8 known substitutes for AL4558420: 2N5918, PT6694, 618794-2 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AL4558420?
AL4558420 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-365-9658. 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