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Technical Data Sheet
2N458B ✓ 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 mounting_method: UNTHREADED HOLE(S), semiconductor_material: GERMANIUM, terminal_circle_diameter: 0.875 INCHES MAXIMUM IN, criticality_code_justification: ZZZY, power_rating_per_characteristic: 0.5 WATTS NOMINAL CW POWER, current_rating_per_characteristic: 7.0 AMPERES NOMINAL SOURCE CURRENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-583-5647, 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
2N458B
NSN: 5961-01-583-5647
FSC: 5961
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
mounting_methodUNTHREADED HOLE(S)
semiconductor_materialGERMANIUM
terminal_circle_diameter0.875 INCHES MAXIMUM IN
mounting_facility_quantity2
criticality_code_justificationZZZY
power_rating_per_characteristic0.5 WATTS NOMINAL CW POWER
current_rating_per_characteristic7.0 AMPERES NOMINAL SOURCE CURRENT
part_name_assigned_by_controlling_agencyGERMANIUM POWER TRANSISTOR
voltage_rating_in_volts_per_characteristic45.0 NOMINAL SOURCE SUPPLY VOLTAGE
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND SPECIFICATIONS
NSN5961-01-583-5647
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 2N458B MFR OEM TRANSISTOR
KEY FEATURES
CRITICALITY CODE JUSTIFICATION: ZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND SPECIFICATIONS
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND SPECIFICATIONS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
2N458AInterchangeable
interchangeable cross-reference
interchangeable
2N458A/BInterchangeable
interchangeable cross-reference
interchangeable
2N458BInterchangeable
interchangeable cross-reference
interchangeable
JAN2N458AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N458B?
2N458B is a TRANSISTOR.
What parts can replace 2N458B?
There are 4 known substitutes for 2N458B: 2N458A, 2N458A/B, 2N458B and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2N458B?
2N458B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-583-5647. This indicates validated use in U.S. government and defense supply chains.
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