NSN 5985-01-350-8187
Part Details | VARIABLE ATTENUATOR
5985-01-350-8187 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: 8949256011, 8949256-01-1, 5985-01-350-8187, 01-350-8187, 5985013508187, 013508187
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | DEC 22, 1991 | 01-350-8187 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
COAXIAL TYPE
Cross Reference | NSN 5985-01-350-8187
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8949256-01-1 | 94117 | BAE SYSTEMS INFORMATION ANDELECTRONIC SYSTEMS INTEGRATION INC. |
Technical Data | NSN 5985-01-350-8187
| Characteristic | Specifications |
|---|---|
| FREQUENCY RANGE | 0.010 GIGAHERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM |
| IMPEDANCE RATING IN OHMS | 50.0 INPUT-OUTPUT |
| VOLTAGE STANDING WAVE RATIO | B1.25$$B1.80 |
| INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 2.1 |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P70.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | P1.00/P2.00 |
| ATTENUATION VARIATION METHOD | STEPPED |
| STEP POSITION QUANTITY | 7 |
| ATTENUATION PER STEP IN DECIBELS | 10.0 |
| BODY STYLE | COAXIAL TYPE |
| OVERALL LENGTH | 6.150 INCHES NOMINAL |
| OVERALL HEIGHT | 1.010 INCHES NOMINAL |
| OVERALL WIDTH | 2.350 INCHES NOMINAL |
| TERMINAL TYPE AND QUANTITY | 1 CONNECTOR, RECEPTACLE AND 4 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 | 0.112 INCHES |
| MOUNTING THREAD QUANTITY | 40 PER INCH |
| MOUNTING FACILITY PATTERN | TWO POSITION IN-LINE |
| DISTANCE BETWEEN MOUNTING FACILITY CENTERS | 0.700 INCHES NOMINAL |
| SPECIAL FEATURES | "STEPPED,RF,WITH INTERNAL TRANSFER SWITCH; WGHT,8.0 OZ. MAX.; SWITCHING SPEED,20 MILLISECONDS MAX.; TEMP. COEFFICIENT,0.0001 DB/DB/0 DEG.C. MAX.; ATTENUATION RESOLUTION,J1-J2,J1-J3,0-70 DB" |
| END ITEM IDENTIFICATION | AN/USM-638 |