Part Details | VARIABLE ATTENUATOR
5985-00-578-3993 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: 181288, 5985-00-578-3993, 00-578-3993, 5985005783993, 005783993
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1963 | 00-578-3993 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 5985-00-578-3993
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 181288 | 82577 | RAYTHEON COMPANYDBA RAYTHEON |
Technical Data | NSN 5985-00-578-3993
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | WAVEGUIDE |
| FREQUENCY RANGE | 8.200 GIGAHERTZ MINIMUM AND 10.000 GIGAHERTZ MAXIMUM |
| VOLTAGE STANDING WAVE RATIO | 1.10 |
| POWER RATING | 0.5 MILLIWATTS AVERAGE |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P40.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | M1.00/P1.00 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| OVERALL LENGTH | 6.937 INCHES NOMINAL |
| OVERALL HEIGHT | 2.562 INCHES NOMINAL |
| OVERALL WIDTH | 6.500 INCHES NOMINAL |
| TERMINAL TYPE AND QUANTITY | 2 FLANGE |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 THREADED HOLE |
| MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNC |
| MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.164 INCHES |
| MOUNTING THREAD QUANTITY | 32 PER INCH |
| MOUNTING FACILITY PATTERN | FOUR POSITION RECTANGULAR |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH | 1.280 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 1.220 INCHES NOMINAL |