Model: MA-149

Variable Attenuator

Special Features:

This device requires special handling and processing to prevent damage from electrostatic discharge transients

Properties:

Application Design
Printed circuit board
Body Style
Irregular
Overall Length
2.130 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
Between 1.490 inches and 1.510 inches
Center To Center Distance Between Mounting Facilities Parallel To Width
Between 1.120 inches and 1.140 inches
Overall Height
1.000 inches
Overall Width
1.500 inches
Attenuation Variation Method
Stepped
Step Position Quantity
5
Mounting Facility Type And Quantity
2 threaded hole
Frequency Range
Between 360.000 hertz and 440.000 hertz
Mounting Thread Quantity
40 per inch
Mounting Facility Pattern
Two position diagonal
Criticality Code Justification
Feat
Mounting Facility Screw Thread Diameter
0.112 inches
Test Data Document
81349-mil-std-202 standard (includes industry or association standards, individual manufactureer standards, etc.).
Terminal Type And Quantity
5 tab, solder lug
NSN
5985-01-323-4931
Part Number
MA-149
Description
Attenuator,variable
CAGE
37695

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 MA-149 NSN 5985-01-323-4931

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:
B
ESD:
B
MMAC:
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
39
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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