Part Details | VARIABLE ATTENUATOR
5985-00-229-8000 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).
Alternate Parts: SA100SM, SA-100SM, SMA571563, SM-A-571563, 5985-00-229-8000, 00-229-8000, 5985002298000, 002298000
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
59 | MAR 08, 1971 | 00-229-8000 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
COAXIAL TYPE

Cross Reference | NSN 5985-00-229-8000
Part Number | Cage Code | Manufacturer |
---|---|---|
SA-100SM | 12598 | R L C ELECTRONICS, INC. |
SM-A-571563 | 80063 | US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS |
Technical Data | NSN 5985-00-229-8000
Characteristic | Specifications |
---|---|
APPLICATION DESIGN | TRANSMISSION LINE |
FREQUENCY RANGE | 0.000 MEGAHERTZ MINIMUM AND 500.000 MEGAHERTZ MAXIMUM |
IMPEDANCE RATING IN OHMS | 50.0 INPUT-OUTPUT |
POWER RATING | 100.0 MILLIWATTS AVERAGE |
INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 0.5 |
OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P41.0 |
OVERALL ATTENUATION ACCURACY IN DECIBELS | M2.05/P2.05 |
ATTENUATION VARIATION METHOD | STEPPED |
STEP POSITION QUANTITY | 41 |
ATTENUATION PER STEP IN DECIBELS | 1.0 |
BODY STYLE | COAXIAL TYPE |
OVERALL LENGTH | 6.968 INCHES NOMINAL |
OVERALL HEIGHT | 2.000 INCHES NOMINAL |
OVERALL WIDTH | 1.750 INCHES NOMINAL |
ADJUSTMENT DEVICE TYPE AND QUANTITY | 6 LEVER |
TERMINAL TYPE AND QUANTITY | 2 CONNECTOR, COAXIAL, FEMALE |
COAXIAL CONNECTOR SERIES DESIGNATION | N |
MOUNTING FACILITY TYPE AND QUANTITY | 4 THREADED HOLE |
MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNC |
MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.138 INCHES |
MOUNTING THREAD QUANTITY | 32 PER INCH |
MOUNTING FACILITY PATTERN | FOUR POSITION RECTANGULAR |
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH | 5.250 INCHES NOMINAL |
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 1.750 INCHES NOMINAL |
SCALE LINEARITY | LINEAR |
OPERATING TEMP RANGE | -25.0 TO +150.0 DEG FAHRENHEIT |