Model: BA-987-278

Variable Attenuator

Properties:

Application Design
Audio
Overall Length
1.562 inches
Shaft Diameter
Between 0.249 inches and 0.251 inches
Shaft Length
0.313 inches
Overall Diameter
0.953 inches
Schematic Diagram Designator
Bridged "t"
Operating Tempurature Range
-55.0/+120.0 degrees celsius
Power Rating
2.0 watts average
Mounting Facility Screw Thread Series Designator
Unef
Insertion Loss At Minimum Attenuation In Maximum Decibels
0.1
Attenuation Variation Method
Continuous
Mounting Facility Type And Quantity
1 threaded bushing
Mounting Thread Quantity
32 per inch
Adjustment Device Type And Quantity
1 shaft
Shaft Type
Round
Mounting Facility Screw Thread Diameter
0.375 inches
Impedance Rating In Ohms
600.0 input-output
Supplementary Features
Two-section
Terminal Type And Quantity
6 tab, solder lug
Fsc Application Data
Antennas, waveguides, and related equipment
NSN
5985-00-930-3498
Part Number
BA-987-278
Description
Attenuator,variable
CAGE

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 BA-987-278 NSN 5985-00-930-3498

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:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
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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