PartsTable
Technical Data Sheet
PartsTable / COMPONENT / SZ4.3
SZ4.3 ✓ 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 SZ4.3 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-401-0074, 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
SZ4.3
NSN: 5961-00-401-0074
FSC: 5961
CAGE: 81071 — JAPLAR GROUP, INC. DBA JAPLAR SCHAUER (USA)
SPECIFICATIONS
Part NumberSZ4.3
NSN5961-00-401-0074
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 SZ4.3 MFR OEM SZ4.3
KEY FEATURES
•
CURRENT RATING PER CHARACTERISTIC: 20.00 MILLIAMPERES MAXIMUM MAXIMUM REVERSE SURGE CURRENT
•
MOUNTING METHOD: TERMINAL
•
TERMINAL LENGTH: 1.000 INCHES MINIMUM IN
•
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 150.0 CELSIUS AMBIENT AIR DEGC
•
OVERALL DIAMETER: 0.160 INCHES NOMINAL IN
•
POWER RATING PER CHARACTERISTIC: 1.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 4.3 MAXIMUM NOMINAL REGULATOR VOLTAGE
TECHNICAL CHARACTERISTICS (FLIS)
CURRENT RATING PER CHARACTERISTIC20.00 MILLIAMPERES MAXIMUM MAXIMUM REVERSE SURGE CURRENT
MOUNTING METHODTERMINAL
TERMINAL LENGTH1.000 INCHES MINIMUM IN
OVERALL LENGTH0.437 INCHES NOMINAL IN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT150.0 CELSIUS AMBIENT AIR DEGC
OVERALL DIAMETER0.160 INCHES NOMINAL IN
POWER RATING PER CHARACTERISTIC1.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC4.3 MAXIMUM NOMINAL REGULATOR VOLTAGE
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD
MATERIALGLASS ENCLOSURE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AS618Interchangeable
interchangeable cross-reference
interchangeable
SZ-43Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-641Interchangeable
interchangeable cross-reference
interchangeable
0303-025Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SZ4.3?
SZ4.3 is a SZ4.3.
What parts can replace SZ4.3?
There are 4 known substitutes for SZ4.3: AS618, SZ-43, GGG-W-641 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SZ4.3?
SZ4.3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-401-0074. 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