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Technical Data Sheet
AA-20B ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The ATTENUATOR,FIXED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, body_style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE, power_rating: 2.0 WATTS PEAK, overall_length: 2.260 INCHES NOMINAL IN, frequency_range: 0.000 HERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM, mounting_method: CONNECTOR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-845-4395, 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
AA-20B
NSN: 5985-00-845-4395
FSC: 5985
CAGE: 00929 — MICROLAB/FXR LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
power_rating2.0 WATTS PEAK
overall_length2.260 INCHES NOMINAL IN
frequency_range0.000 HERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM
mounting_methodCONNECTOR
overall_diameter0.580 INCHES NOMINAL IN
precious_materialSILVER
surface_treatmentSILVER BODY
application_designTRANSMISSION LINE
fsc_application_dataANTENNAS,WAVE GUIDES,AND RELATED EQUIPMENT
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
NSN5985-00-845-4395
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ATTENUATOR,FIXED TITLE COMPONENT PN AA-20B MFR ATTENUATOR,FIXED
KEY FEATURES
SURFACE TREATMENT: SILVER BODY
FSC APPLICATION DATA: ANTENNAS,WAVE GUIDES,AND RELATED EQUIPMENT
BODY STYLE: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
PRECIOUS MATERIAL: SILVER
VOLTAGE STANDING WAVE RATIO: 1.25
RF SIGNAL ATTENUATION IN DECIBELS: 20.0
TERMINAL TYPE AND QUANTITY: 2 CONNECTOR
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTSILVER BODY
FSC APPLICATION DATAANTENNAS,WAVE GUIDES,AND RELATED EQUIPMENT
BODY STYLEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
PRECIOUS MATERIALSILVER
VOLTAGE STANDING WAVE RATIO1.25
RF SIGNAL ATTENUATION IN DECIBELS20.0
OVERALL LENGTH2.300 INCHES MAXIMUM IN
TERMINAL TYPE AND QUANTITY2 CONNECTOR
UNPACKAGED UNIT WEIGHT2.500 OUNCES OZ
COAXIAL CONNECTOR SERIES DESIGNATIONBNC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
MIL-DTL-8603Interchangeable
interchangeable cross-reference
interchangeable
MS21103D20Interchangeable
interchangeable cross-reference
interchangeable
R42C18205-185Interchangeable
interchangeable cross-reference
interchangeable
49492Interchangeable
interchangeable cross-reference
interchangeable
75-520Interchangeable
interchangeable cross-reference
interchangeable
75-530Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA-20B?
AA-20B is a ATTENUATOR,FIXED.
What parts can replace AA-20B?
There are 18 known substitutes for AA-20B: MIL-DTL-8603, MS21103D20, R42C18205-185 and 15 more. Substitute compatibility should be verified for your specific system.
Is AA-20B still available?
AA-20B is currently cancelled.
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