Fixed Coaxial Attenuators Model 251 High Power, N Connectors dc to 6.0 GHz 200 Watts Convection Cooled, Bi-directional RoHS POWER RATING: 200 watts average (Bi-directional) to 25°C ambient temperature, derated linearly to 20 watts @ 125°C ambient. 10 kilowatt peak (5 μsec pulse width; 1% duty cycle). POWER COEFFICIENT: <0.0001 dB/dB/watt TEMPERATURE COEFFICIENT: <0.0004 dB/dB/°C TEMPERATURE RANGE: -55°C to 125°C Features o o Quality connectors with special high temperature support beads. Designed to meet environmental requirements of MIL-DTL-3933. Specifications NOMINAL IMPEDANCE: 50 Ω FREQUENCY RANGE: dc to 6.0 GHz MAXIMUM DEVIATION OVER FREQUENCY: Nominal ATTN (dB) Deviation (dB) TEST DATA: Swept data plots of attenuation and SWR from 50 MHz to 6 GHz. CONNECTORS: Type N connectors per MIL-STD-348 interface dimensions - mate nondestructively with MIL-C-39012 connectors. Connector Options Type/Description 3 4 Type N, Female Type N, Male CONSTRUCTION: Black Finned Aluminum alloy body, stainless steel connectors; gold plated beryllium copper contacts. WEIGHT: 1,530 g (3 lbs, 6 oz) maximum + 2.00 10, 20, 30 , 40 MODEL NUMBER DESCRIPTION: Example: MAXIMUM SWR: Frequency (GHz) SWR dc - 2 1.10 2-6 1.20 251 - XX - XX Basic Model Number Attenuation Value (dB) Connector Options 1st digit is input side 2nd digit is output side PHYSICAL DIMENSIONS: Connector N Male N Female DIM A 22.9 (0.90) 15.0 (0.59) NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified. 67 5305 Spectrum Drive, Frederick, MD 21703-7362 s TEL: 301-846-9222, 800-638-2048 s Fax: 301-846-9116 web: www.aeroflex.com/weinschel s email: [email protected] Revision Date: 9/30/2012