Model: 3954-100A

Variable Attenuator

Properties:

Application Design
Transmission line
Overall Length
4.500 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
3.500 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
3.500 inches
Overall Height
2.060 inches
Overall Width
4.500 inches
Unthreaded Mounting Hole Diameter
0.154 inches
Operating Tempurature Range
+0.0/+75.0 degrees celsius
Voltage Standing Wave Ratio
1.80 and 1.40
Coaxial Connector Series Designation
Sma
Power Rating
2.0 watts average
Overall Attenuation Range In Decibels
+0.0/+100.0
Attenuation Variation Method
Continuous
Mounting Facility Type And Quantity
4 flange w/mounting hole
Frequency Range
Between 1.000 gigahertz and 1.120 gigahertz
Overall Attenuation Accuracy In Decibels
-0.50/+0.50
Adjustment Device Type And Quantity
1 knob
Mounting Facility Pattern
Four position rectangular
Impedance Rating In Ohms
50.0 input-output
Precious Material And Location
Contact surfaces gold
Precious Material
Gold
Test Data Document
45413-134204-005 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Terminal Type And Quantity
2 connector, coaxial, female
Fsc Application Data
Antennas, waveguides, and related equip.
NSN
5985-00-975-6291
Part Number
3954-100A
Description
Attenuator,variable
CAGE
09992

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 3954-100A NSN 5985-00-975-6291

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:
G
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
4.3000lbs
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:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
100.0
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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