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Technical Data Sheet
212691 ✓ 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: STEEL CORROSION RESISTING OVERALL, blade_type: DISSECTING, cut_length: 1.562 INCHES MINIMUM AND 1.938 INCHES MAXIMUM IN, blade_shape: CURVED, overall_length: 6.500 INCHES MINIMUM AND 7.000 INCHES MAXIMUM IN, blade_point_type: BOTH BLUNT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-138-1739, 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
212691
NSN: 5961-01-138-1739
FSC: 5961
CAGE: 89536 — FLUKE CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
blade_typeDISSECTING
cut_length1.562 INCHES MINIMUM AND 1.938 INCHES MAXIMUM IN
blade_shapeCURVED
overall_length6.500 INCHES MINIMUM AND 7.000 INCHES MAXIMUM IN
blade_point_typeBOTH BLUNT
design_designationMAYO
nondefinitive_spec/std_data1 TYPE AND 2 SIZE
part_name_assigned_by_controlling_agencyMAYO SCISSORS CURVED
NSN5961-01-138-1739
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 212691 MFR OEM TRANSISTOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
TM-BC 557Interchangeable
interchangeable cross-reference
interchangeable
10-2531Interchangeable
interchangeable cross-reference
interchangeable
SU1811Interchangeable
interchangeable cross-reference
interchangeable
21269-1Interchangeable
interchangeable cross-reference
interchangeable
4822 130 44256Interchangeable
Same NIIN cross-reference
interchangeable
BC557Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 212691?
212691 is a TRANSISTOR.
What parts can replace 212691?
There are 6 known substitutes for 212691: TM-BC 557, 10-2531, SU1811 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 212691?
212691 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-138-1739. This indicates validated use in U.S. government and defense supply chains.
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