Model: 8120S

Variable Attenuator

Special Features:

Max 0.250 in. Mounting panel thickness; 30 degrees angle between steps; finish is chemical film over aluminum per mil-c-5541; color clear

Properties:

Application Design
Transmission line
Body Style
Coaxial type
Overall Length
3.220 inches
Overall Height
2.120 inches
Overall Width
1.310 inches
Shaft Diameter
0.250 inches
Shaft Length
0.620 inches
Operating Tempurature Range
-55.0/+85.0 degrees celsius
Voltage Standing Wave Ratio
1.30
Coaxial Connector Series Designation
Sma
Power Rating
3.0 watts average and 1000.0 watts peak
Mounting Facility Screw Thread Series Designator
Unc
Insertion Loss At Minimum Attenuation In Maximum Decibels
0.2
Overall Attenuation Range In Decibels
+0.0/+100.0
Attenuation Variation Method
Stepped
Step Position Quantity
10
Attenuation Per Step In Decibels
10.0
Mounting Facility Type And Quantity
4 threaded hole
Frequency Range
Between 0.000 gigahertz and 2.000 gigahertz
Overall Attenuation Accuracy In Decibels
-1.60/+1.60
Segment Attenuation Range In Decibels
+0.00/+10.00 and +10.00/+20.00 and +20.00/+30.00 and +30.00/+40.00 and +40.00/+50.00 and +50.00/+60.00 and +60.00/+70.00 and +70.00/+80.00 and +80.00/+90.00 and +90.00/+100.00
Segment Attenuation Accuracy In Decibels
-0.30/+0.30 and -0.50/+0.50 and -0.70/+0.70 and -0.80/+0.80 and -1.00/+1.00 and -1.20/+1.20 and -1.30/+1.30 and -1.40/+1.40 and -1.50/+1.50 and -1.60/+1.60
Mounting Thread Quantity
32 per inch
Adjustment Device Type And Quantity
1 shaft and 1 knob w/dial
Mounting Facility Pattern
Four position diamond
Shaft Type
Round
Mounting Facility Screw Thread Diameter
0.138 inches
Impedance Rating In Ohms
50.0 input-output
Terminal Type And Quantity
2 connector, coaxial, male
NSN
5985-01-461-1538
Part Number
8120S
Description
Attenuator,variable
CAGE
04423

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 8120S NSN 5985-01-461-1538

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:
A
ESD:
A
MMAC:
CRITL:
X

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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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