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Technical Data Sheet
PartsTable / COMPONENT / ST4265
ST4265 ✓ 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

CAPACITOR,FIXED,PLASTIC DIELECTR. Key specifications include overall_length: 0.260 INCHES NOMINAL0.260 INCHES NOMINAL IN, mounting_method: TERMINALTERMINAL, terminal_length: 1.500 INCHES MINIMUM1.500 INCHES MINIMUM IN, overall_diameter: 0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPNJUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY SEALED CASEHERMETICALLY SEALED CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-088-2938, 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
ST4265
NSN: 5961-00-088-2938
FSC: 5961
CAGE: 03877 — GILBERT ENGINEERING CO INC/INCON SUB OF TRANSITRON ELECTRONIC CORP (USA)
SPECIFICATIONS
overall_length0.260 INCHES NOMINAL0.260 INCHES NOMINAL IN
mounting_methodTERMINALTERMINAL
terminal_length1.500 INCHES MINIMUM1.500 INCHES MINIMUM IN
overall_diameter0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPNJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACTJUNCTION CONTACT
semiconductor_materialSILICONSILICON
terminal_circle_diameter0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
power_rating_per_characteristic5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
maximum_operating_temp_per_measurement_point200.0 CELSIUS AMBIENT AIR200.0 CELSIUS AMBIENT AIR DEGC
NSN5961-00-088-2938
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 ST4265 MFR OEM CAPACITOR,FIXED,PLASTIC DIELECTR
KEY FEATURES
•
INTERNAL CONFIGURATION: JUNCTION CONTACTJUNCTION CONTACT
•
CURRENT RATING PER CHARACTERISTIC: 200.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, BASE OPEN AND 200.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, BASE OPEN AND 100.00 MICROAMPERES MAXIMUM EMITTER CUTOFF CURRENT, DC, COLLECTOR OPEN100.00 MICROAMPERES MAXIMUM EMITTER CUTOFF CURRENT, DC, COLLECTOR OPEN
•
OVERALL DIAMETER: 0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN
•
POWER RATING PER CHARACTERISTIC: 5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
•
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
•
MOUNTING METHOD: TERMINALTERMINAL
•
TERMINAL CIRCLE DIAMETER: 0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL CONFIGURATIONJUNCTION CONTACTJUNCTION CONTACT
CURRENT RATING PER CHARACTERISTIC200.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, BASE OPEN AND 200.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, BASE OPEN AND 100.00 MICROAMPERES MAXIMUM EMITTER CUTOFF CURRENT, DC, COLLECTOR OPEN100.00 MICROAMPERES MAXIMUM EMITTER CUTOFF CURRENT, DC, COLLECTOR OPEN
OVERALL DIAMETER0.370 INCHES NOMINAL0.370 INCHES NOMINAL IN
OVERALL LENGTH0.260 INCHES NOMINAL0.260 INCHES NOMINAL IN
POWER RATING PER CHARACTERISTIC5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
MOUNTING METHODTERMINALTERMINAL
TERMINAL CIRCLE DIAMETER0.200 INCHES NOMINAL0.200 INCHES NOMINAL IN
SEMICONDUCTOR MATERIALSILICONSILICON
TERMINAL LENGTH1.500 INCHES MINIMUM1.500 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
5921216Interchangeable
interchangeable cross-reference
interchangeable
1N355Interchangeable
interchangeable cross-reference
interchangeable
256131Interchangeable
interchangeable cross-reference
interchangeable
2N550Interchangeable
interchangeable cross-reference
interchangeable
352-0393-00Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST4265?
ST4265 is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace ST4265?
There are 5 known substitutes for ST4265: 5921216, 1N355, 256131 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST4265?
ST4265 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-088-2938. 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