Fixed Coaxial Attenuators Model 75A Medium Power Fixed Coaxial Attenuator dc to 40.0 GHz 5 Watts Bi-directional Design TEMPERATURE RANGE: -55 C to 125 C TEST DATA SUPPLIED: Sweep SWR/Attenuation data/ plots performed across 0.1-40 GHz frequency range. CONNECTORS: 2.92mm (Male/Female) connectors mate nondestructively with SMA per MIL-C-39012, 3.5mm and other 2.92mm connectors. Connector Options 1 2 Features o o o o Compact Construction - Lowest size/power ratio. Precision injection molded connector dielectric. Designed to meet environmental requirements of MIL-DTL-3933. Flat Response. Type/Description 2.92mm, Female 2.92mm, Male CONSTRUCTION: Black, finned aluminum body, gold plated beryllium copper contacts. WEIGHT: 200 g (7.0 oz.) maximum PHYSICAL DIMENSIONS: Specifications NOMINAL IMPEDANCE: 50 FREQUENCY RANGE: dc to 40.0 GHz MAXIMUM DEVIATION OVER FREQUENCY: Nominal ATTN (dB) Deviation (dB) dc-18 GHz 18-40 GHz 3 + 0.50 + 1.00 6, 10, 20, 30 + 0.80 + 1.50 MAXIMUM SWR: Frequency (GHz) SWR dc - 18 18 - 40 1.25 1.45 Dash No. 11 12 22 NOTE: POWER RATING (mounted horizontally): 5 watts average (bi-directional) to 25C ambient temperature, derated linearly to 0.5 Watt @ 125C. 200 watts peak (5 sec pulse width; 1.25% duty cycle). All dimensions are given in mm (inches) and are nominal, unless otherwise specified. MODEL NUMBER DESCRIPTION: Example: 75A - XX - XX* POWER COEFFICIENT: <0.002 dB/dB/watt TEMPERATURE COEFFICIENT: <0.0004 dB/dB/C Connector Type DIM A 2.92mm Female/Female 39.9 (1.56) 2.92mm Male/Female 44.1 (1.74) 2.92mm Male/Male 48.8 (1.92) Basic Model Number Attenuation Value (dB) Connector Options -11 Female/Female -12 Female/Male -22 Male\Male *Unit is bi-directional and full power may be applied to either connector. 35 5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116 web: www.aeroflex-weinschel.com email: weinschel-sales@aeroflex.com Revision Date: 11/18/08