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Technical Data Sheet
PartsTable / COMPONENT / BFS20
BFS20 ✓ 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 material: PLASTIC ENCLOSURE, overall_length: 3.0 MILLIMETERS NOMINAL MM, special_features: JUNCTION PATTERN ARRANGEMENT: NPN, semiconductor_material: SILICON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-422-2605, 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
BFS20
NSN: 5961-01-422-2605
FSC: 5961
CAGE: 27014 — NATIONAL SEMICONDUCTOR CORPORATION (USA)
SPECIFICATIONS
materialPLASTIC ENCLOSURE
overall_length3.0 MILLIMETERS NOMINAL MM
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
semiconductor_materialSILICON
NSN5961-01-422-2605
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 BFS20 MFR OEM TRANSISTOR
KEY FEATURES
•
SEMICONDUCTOR MATERIAL: SILICON
•
MATERIAL: PLASTIC ENCLOSURE
TECHNICAL CHARACTERISTICS (FLIS)
SEMICONDUCTOR MATERIALSILICON
MATERIALPLASTIC ENCLOSURE
OVERALL LENGTH3.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
MIL-F-16377/45Interchangeable
interchangeable cross-reference
interchangeable
P340HInterchangeable
interchangeable cross-reference
interchangeable
MS16572-1Interchangeable
interchangeable cross-reference
interchangeable
BUL26P9-1Interchangeable
interchangeable cross-reference
interchangeable
13449PCA13449Interchangeable
interchangeable cross-reference
interchangeable
13742PC1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BFS20?
BFS20 is a TRANSISTOR.
What parts can replace BFS20?
There are 11 known substitutes for BFS20: MIL-F-16377/45, P340H, MS16572-1 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BFS20?
BFS20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-422-2605. 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