Model: 447A

Variable Attenuator

Properties:

Application Design
Transmission line
Body Style
Coaxial type
Overall Length
6.000 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
4.875 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
1.062 inches
Overall Height
1.313 inches
Overall Width
1.375 inches
Coaxial Connector Series Designation
Bnc
Mounting Facility Screw Thread Series Designator
Unc
Overall Attenuation Range In Decibels
+0.0/+102.5
Attenuation Variation Method
Stepped
Step Position Quantity
9
Attenuation Per Step In Decibels
0.5 and 1.0
Mounting Facility Type And Quantity
4 threaded hole
Frequency Range
Between 0.000 hertz and 500.000 megahertz
Mounting Thread Quantity
56 per inch
Adjustment Device Type And Quantity
9 knob
Mounting Facility Pattern
Four position rectangular
Mounting Facility Screw Thread Diameter
2.000 inches
Impedance Rating In Ohms
75.0 input-output
Terminal Type And Quantity
2 connector, coaxial, female
NSN
5985-00-275-5097
Part Number
447A
Description
Attenuator,variable
CAGE
80138

A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also resistor, vaiable (as modified).

Part 447A NSN 5985-00-275-5097

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00838
FIIG:
A223A0
Concept No.:
App. Key:
A
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
QC
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
100.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
LVL_B:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
77.5
WCC:
72D
TCC:
Z
SHC:
Q
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 8529109000
  • SITC: 76493
  • End Use: Telecommunications equipment
  • NAICS: 334220
  • USDA: 1

Freight Class: Antenna & antenna reflectors of all kinds; parts suitable for use soley or principally w/ apparatus of heading 8525 to 8528, nesoi

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