Model 48 Medium Power Fixed Coaxial Attenuators dc to 18.0 GHz 100 Watts Type N or 3.5mm Connectors CALIBRATION: Insertion loss test data supplied at 0.05, 4.0, 8.0, 12.4, and 18.0 GHz. Other test data can be provided at additional cost. CONNECTORS: Type N connectors per MIL-STD-348 interface dimensions - mate nondestructively with MIL-C39012 connectors. 3.5mm (Male/Female) connectors - mate nondestructively with SMA per MIL-C-39012, 2.92mm and other 3.5mm connectors. Features o o o Designed to meet environmental requirements of MIL-A-3933. Low Intermodulation option available. Rugged injection molded connectors. Specifications Connector Options Type/Description 1 2 3 4 3.5mm, Female 3.5mm, Male Type N, Female Type N, Male CONSTRUCTION: Black, finned aluminum body, stainless steel connectors, gold plated beryllium copper contacts. WEIGHT: 320 g (11 oz.) maximum NOMINAL IMPEDANCE: 50 PHYSICAL DIMENSIONS: FREQUENCY RANGE: dc to 18.0 GHz MAXIMUM DEVIATION OVER FREQUENCY (dB): Nominal ATTN (dB) 10 20 30, 40 48 + 1.25 + 0.75 + 1.00 MAXIMUM SWR: Frequency (GHz) 10 dB dc - 8 8 -12.4 12.4 - 18 1.40 1.40 1.55 48 LIM dc-8 GHz 8-18 GHz + 1.00 + 1.00 + 1.00 +3.0/-0.0 +3.0/-0.0 +3.0/-0.0 48 20, 30, 40 dB 48 LIM 1.25 1.35 1.45 1.40 1.45 1.45 POWER RATING (mounted horizontally): 100 watts average (unidirectional) to 25C ambient temperature, derated linearly to 10 watts @ 125C. 1 kilowatt peak (5 sec pulse width; 5% duty cycle). Maximum power rating into output port is 10% of the average power rating. 3rd ORDER INTERMODULATION: Reflected Levels (IM3), -100 dBc & Through Levels (IM3), -110 dBc with two input signals @ 869 MHz and 891 MHz with average carrier power levels of +43 dBm each. POWER COEFFICIENT: <0.00015 dB/dB/watt TEMPERATURE COEFFICIENT: <0.0004 dB/dB/C TEMPERATURE RANGE: -55C to 125C 56 10/23/01 Connector 3.5mm Female 3.5mm Male N Male N Female NOTE: DIM A 13.2 (0.52) 14.0 (0.55) 24.1 (0.95) 19.0 (0.75) All dimensions are given in mm (inches) and are maximum, unless otherwise specified. MODEL NUMBER DESCRIPTION: Example: 48 - XX - XX - LIM IM Option* Basic Model Number Attenuation Value (dB) Connector Options 1st digit is input side 2nd digit is output side * Add -LIM to entire model number for Low Intermodulation option. Option is not available through Express. 5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116 web: www.weinschel.com email: sales@weinschel.com