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2561260 — Network Technical Data

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— · 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_length: 0.375 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 1.500 INCHES MINIMUM IN, overall_diameter: 0.360 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 under NSN 5961-00-491-4374, 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
2561260
NSN: 5961-00-491-4374
FSC: 5961
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
overall_length0.375 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length1.500 INCHES MINIMUM IN
overall_diameter0.360 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialGERMANIUM
terminal_type_and_quantity4 UNINSULATED WIRE LEAD
internal_junction_configurationPNP
power_rating_per_characteristic100.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic11.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
voltage_rating_in_volts_per_characteristic20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 1.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
NSN5961-00-491-4374
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 2561260 MFR OEM TRANSISTOR
KEY FEATURES
•
FEATURES PROVIDED: HERMETICALLY SEALED CASE
•
TERMINAL TYPE AND QUANTITY: 4 UNINSULATED WIRE LEAD
•
SEMICONDUCTOR MATERIAL: GERMANIUM
•
INTERNAL JUNCTION CONFIGURATION: PNP
•
CURRENT RATING PER CHARACTERISTIC: 11.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 1.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
•
POWER RATING PER CHARACTERISTIC: 100.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
TECHNICAL CHARACTERISTICS
FEATURES PROVIDEDHERMETICALLY SEALED CASE
TERMINAL TYPE AND QUANTITY4 UNINSULATED WIRE LEAD
SEMICONDUCTOR MATERIALGERMANIUM
INTERNAL JUNCTION CONFIGURATIONPNP
CURRENT RATING PER CHARACTERISTIC11.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 1.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
POWER RATING PER CHARACTERISTIC100.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
OVERALL LENGTH0.375 INCHES MAXIMUM IN
OVERALL DIAMETER0.360 INCHES MAXIMUM IN
INTERNAL CONFIGURATIONJUNCTION CONTACT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
2N2089InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RELEASE4501InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2561260?
2561260 is a TRANSISTOR.
What parts can replace 2561260?
There are 2 known substitutes for 2561260: 2N2089, RELEASE4501. Substitute compatibility should be verified for your specific system.
What is the NSN for 2561260?
2561260 is cataloged in the Federal Logistics Information System under NSN 5961-00-491-4374. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026