Model: AT21-12F

Variable Attenuator
Description:

Transmission line application design, 8.875 inches overall length, 4.500 inches overall diameter, n coaxial connector series designation.

Properties:

Application Design
Transmission line
Overall Length
8.875 inches
Overall Diameter
4.500 inches
Coaxial Connector Series Designation
N
Power Rating
1.0 watts average
Mounting Facility Screw Thread Series Designator
Unf
Overall Attenuation Range In Decibels
+0.0/+60.0
Attenuation Variation Method
Stepped
Step Position Quantity
10
Attenuation Per Step In Decibels
6.0
Mounting Facility Type And Quantity
1 threaded bushing
Frequency Range
Between 0.000 gigahertz and 400.000 gigahertz
Overall Attenuation Accuracy In Decibels
-0.25/+0.25
Mounting Thread Quantity
32 per inch
Mounting Facility Screw Thread Diameter
0.190 inches
Impedance Rating In Ohms
50.0 input-output
NSN
5985-00-020-2990
Part Number
AT21-12F
Description
Attenuator,variable
CAGE
12598

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 AT21-12F NSN 5985-00-020-2990

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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
2.0000lbs
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:
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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