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Technical Data Sheet
ST85D20-12 ✓ 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 AND COPPER ALLOY 172 AND COPPER ALLOY 173 TERMINAL, body_style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE, power_rating: 2.0 WATTS AVERAGE, overall_length: 1.220 INCHES NOMINAL IN, frequency_range: 0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM, mounting_method: CONNECTOR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-262-2954, 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
ST85D20-12
NSN: 5985-01-262-2954
FSC: 5985
CAGE: 04236 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING AND COPPER ALLOY 172 AND COPPER ALLOY 173 TERMINAL
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
power_rating2.0 WATTS AVERAGE
overall_length1.220 INCHES NOMINAL IN
frequency_range0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
mounting_methodCONNECTOR
overall_diameter0.380 INCHES NOMINAL IN
precious_materialGOLD
surface_treatmentGOLD TERMINAL
application_designTRANSMISSION LINE
operating_temp_range+13.0 TO 28.0 CELSIUS DEGC
terminal_type_and_quantity2 CONNECTOR
NSN5985-01-262-2954
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ATTENUATOR,FIXED TITLE COMPONENT PN ST85D20-12 MFR ATTENUATOR,FIXED
KEY FEATURES
POWER RATING: 2.0 WATTS AVERAGE
OVERALL DIAMETER: 0.380 INCHES NOMINAL IN
OPERATING TEMP RANGE: +13.0 TO 28.0 CELSIUS DEGC
COAXIAL CONNECTOR SERIES DESIGNATION: SMA
VOLTAGE STANDING WAVE RATIO FREQUENCY RANGE: +0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 12.4 GIGAHERTZ
FREQUENCY RANGE: 0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
VOLTAGE STANDING WAVE RATIO: 1.15 AND 1.25
TECHNICAL CHARACTERISTICS (FLIS)
POWER RATING2.0 WATTS AVERAGE
OVERALL DIAMETER0.380 INCHES NOMINAL IN
OPERATING TEMP RANGE+13.0 TO 28.0 CELSIUS DEGC
COAXIAL CONNECTOR SERIES DESIGNATIONSMA
VOLTAGE STANDING WAVE RATIO FREQUENCY RANGE+0.0 TO 4.0 GIGAHERTZ AND +4.0 TO 12.4 GIGAHERTZ
OVERALL LENGTH1.220 INCHES NOMINAL IN
FREQUENCY RANGE0.000 HERTZ MINIMUM AND 12.400 GIGAHERTZ MAXIMUM
VOLTAGE STANDING WAVE RATIO1.15 AND 1.25
INPUT IMPEDANCE RATING IN OHMS50.0
OUTPUT IMPEDANCE RATING IN OHMS50.0
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
109099Interchangeable
interchangeable cross-reference
interchangeable
4980362Interchangeable
interchangeable cross-reference
interchangeable
99947Interchangeable
interchangeable cross-reference
interchangeable
2082Interchangeable
interchangeable cross-reference
interchangeable
205-07-024Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST85D20-12?
ST85D20-12 is a ATTENUATOR,FIXED.
What parts can replace ST85D20-12?
There are 5 known substitutes for ST85D20-12: 109099, 4980362, 99947 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST85D20-12?
ST85D20-12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-262-2954. This indicates validated use in U.S. government and defense supply chains.
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