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Technical Data Sheet
3985C-9 ✓ 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
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PRODUCT OVERVIEW

COUPLER,DIRECT CURRENT BLOCKING. Key specifications include unit_type: COAXIAL LINE, current_type: DC, overall_length: 1.540 INCHES MAXIMUM IN, voltage_rating: 150.0 VOLTS MAXIMUM, overall_diameter: 0.380 INCHES MAXIMUM IN, capacitor_location: INNER CONDUCTOR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-134-5042, 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
3985C-9
NSN: 5985-01-134-5042
FSC: 5985
CAGE: 66702 — COAXIAL COMPONENTS CORP. DBA COAXIAL COMPONENTS CORP (USA)
SPECIFICATIONS
unit_typeCOAXIAL LINE
current_typeDC
overall_length1.540 INCHES MAXIMUM IN
voltage_rating150.0 VOLTS MAXIMUM
overall_diameter0.380 INCHES MAXIMUM IN
capacitor_locationINNER CONDUCTOR
terminal_fitting_nameSMA FEMALE COUPLING; SMA MALE COUPLING
radio_frequency_rating0.15 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM
voltage_standing_wave_ratio_at_reference_frequency1.35 TO 1 AT 0.15 GHZ TO 18 GHZ GHz
NSN5985-01-134-5042
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLER,DIRECT CURRENT BLOCKING TITLE COMPONENT PN 3985C-9 MFR COUPLER,DIRECT CURRENT
KEY FEATURES
CAPACITOR LOCATION: INNER CONDUCTOR
UNIT TYPE: COAXIAL LINE
VOLTAGE STANDING WAVE RATIO AT REFERENCE FREQUENCY: 1.35 TO 1 AT 0.15 GHZ TO 18 GHZ GHz
TERMINAL FITTING NAME: SMA FEMALE COUPLING; SMA MALE COUPLING
RADIO FREQUENCY RATING: 0.15 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM
VOLTAGE RATING: 150.0 VOLTS MAXIMUM
OVERALL DIAMETER: 0.380 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CAPACITOR LOCATIONINNER CONDUCTOR
UNIT TYPECOAXIAL LINE
VOLTAGE STANDING WAVE RATIO AT REFERENCE FREQUENCY1.35 TO 1 AT 0.15 GHZ TO 18 GHZ GHz
TERMINAL FITTING NAMESMA FEMALE COUPLING; SMA MALE COUPLING
RADIO FREQUENCY RATING0.15 GIGAHERTZ MINIMUM AND 18.0 GIGAHERTZ MAXIMUM
VOLTAGE RATING150.0 VOLTS MAXIMUM
OVERALL LENGTH1.540 INCHES MAXIMUM IN
OVERALL DIAMETER0.380 INCHES MAXIMUM IN
CURRENT TYPEDC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
561692Interchangeable
interchangeable cross-reference
interchangeable
4564Interchangeable
interchangeable cross-reference
interchangeable
561692-18Interchangeable
interchangeable cross-reference
interchangeable
7703PInterchangeable
interchangeable cross-reference
interchangeable
2401151Interchangeable
interchangeable cross-reference
interchangeable
P745AXInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3985C-9?
3985C-9 is a COUPLER,DIRECT CURRENT BLOCKING.
What parts can replace 3985C-9?
There are 12 known substitutes for 3985C-9: 561692, 4564, 561692-18 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3985C-9?
3985C-9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-134-5042. This indicates validated use in U.S. government and defense supply chains.
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