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Technical Data Sheet
2157851 ✓ 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_length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 0.500 INCHES MINIMUM IN, overall_diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY 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 5961-00-936-9010, 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
2157851
NSN: 5961-00-936-9010
FSC: 5961
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
overall_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length0.500 INCHES MINIMUM IN
overall_diameter0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
terminal_circle_diameter0.200 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
power_rating_per_characteristic5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
current_rating_per_characteristic1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
NSN5961-00-936-9010
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 2157851 MFR OEM TRANSISTOR
KEY FEATURES
TERMINAL LENGTH: 0.500 INCHES MINIMUM IN
TERMINAL CIRCLE DIAMETER: 0.200 INCHES NOMINAL IN
MOUNTING METHOD: TERMINAL
CURRENT RATING PER CHARACTERISTIC: 1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
OVERALL DIAMETER: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
TEST DATA DOCUMENT: 10001-2157851 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
TERMINAL LENGTH0.500 INCHES MINIMUM IN
OVERALL LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
TERMINAL CIRCLE DIAMETER0.200 INCHES NOMINAL IN
MOUNTING METHODTERMINAL
CURRENT RATING PER CHARACTERISTIC1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
OVERALL DIAMETER0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
TEST DATA DOCUMENT10001-2157851 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT200.0 CELSIUS JUNCTION DEGC
POWER RATING PER CHARACTERISTIC5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
10127846Interchangeable
interchangeable cross-reference
interchangeable
2N2102Interchangeable
interchangeable cross-reference
interchangeable
2N2102AInterchangeable
interchangeable cross-reference
interchangeable
28452-833Interchangeable
interchangeable cross-reference
interchangeable
352-0646-013Interchangeable
interchangeable cross-reference
interchangeable
956688-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2157851?
2157851 is a TRANSISTOR.
What parts can replace 2157851?
There are 19 known substitutes for 2157851: 10127846, 2N2102, 2N2102A and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2157851?
2157851 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-936-9010. This indicates validated use in U.S. government and defense supply chains.
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