PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1N21BMR
1N21BMR ✓ 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 SEMICONDUCTOR DEVICE SET is a the manufacturer industrial component. Key specifications include special_features: MICROWAVE ASSOCIATES CONTROLLING AGENCY; COMPONENT TYPE NO. 1N21B AND 1N21BR, component_name_and_quantity: 2 SEMICONDUCTOR DEVICE DIODE, component_function_relationship: MATCHED.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-061-5443, 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
1N21BMR
NSN: 5961-00-061-5443
FSC: 5961
CAGE: 96341 — COBHAM ADVANCED ELECTRONIC SOLUTIONS INC. (USA)
SPECIFICATIONS
special_featuresMICROWAVE ASSOCIATES CONTROLLING AGENCY; COMPONENT TYPE NO. 1N21B AND 1N21BR
component_name_and_quantity2 SEMICONDUCTOR DEVICE DIODE
component_function_relationshipMATCHED
NSN5961-00-061-5443
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 1N21BMR MFR OEM SEMICONDUCTOR DEVICE SET
KEY FEATURES
•
COMPONENT NAME AND QUANTITY: 2 SEMICONDUCTOR DEVICE DIODE
•
COMPONENT FUNCTION RELATIONSHIP: MATCHED
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESMICROWAVE ASSOCIATES CONTROLLING AGENCY; COMPONENT TYPE NO. 1N21B AND 1N21BR
COMPONENT NAME AND QUANTITY2 SEMICONDUCTOR DEVICE DIODE
COMPONENT FUNCTION RELATIONSHIPMATCHED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
EF19ZE120Interchangeable
interchangeable cross-reference
interchangeable
1303-00-C FN 12Interchangeable
interchangeable cross-reference
interchangeable
19-000-010Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1N21BMR?
1N21BMR is a SEMICONDUCTOR DEVICE SET.
What parts can replace 1N21BMR?
There are 3 known substitutes for 1N21BMR: EF19ZE120, 1303-00-C FN 12, 19-000-010. Substitute compatibility should be verified for your specific system.
What is the NSN for 1N21BMR?
1N21BMR is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-061-5443. 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