Part Details | VARIABLE ATTENUATOR
5985-00-140-8426 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: SMA753296, 5985-00-140-8426, 00-140-8426, 5985001408426, 001408426
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | AUG 19, 1974 | 00-140-8426 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
COAXIAL TYPE
Cross Reference | NSN 5985-00-140-8426
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| SMA753296 | 00929 | MICROLAB/FXR |
Technical Data | NSN 5985-00-140-8426
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | TRANSMISSION LINE |
| FREQUENCY RANGE | 7.900 GIGAHERTZ MINIMUM AND 8.400 GIGAHERTZ MAXIMUM |
| IMPEDANCE RATING IN OHMS | 50.0 INPUT-OUTPUT |
| VOLTAGE STANDING WAVE RATIO | 1.20 |
| POWER RATING | 0.5 WATTS PEAK |
| INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 0.3 |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P3.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | M0.20/P0.20 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | COAXIAL TYPE |
| OVERALL LENGTH | 2.400 INCHES MINIMUM AND 2.420 INCHES MAXIMUM |
| OVERALL HEIGHT | 2.714 INCHES MINIMUM AND 2.786 INCHES MAXIMUM |
| OVERALL WIDTH | 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
| SHAFT TYPE | ROUND, SLOTTED |
| SHAFT DIAMETER | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
| SHAFT LENGTH | 0.734 INCHES MINIMUM AND 0.766 INCHES MAXIMUM |
| TERMINAL TYPE AND QUANTITY | 2 CONNECTOR, COAXIAL, FEMALE |
| COAXIAL CONNECTOR SERIES DESIGNATION | SMA |
| 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 | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| END ITEM IDENTIFICATION | ESA/OBS |