Model 3T Model 4T Weinschel dc to 12.4 GHz dc to 18.0 GHz FIXED COAXIAL ATTENUATORS Ruggedized SMA Connectors 2 WATTS == dite) 800-542-4457 FEATURES J Usable to 22 GHz. J Rugged injection molded connectors. {J Designed to meet environmental requirements of MIL-A-3933. SPECIFICATIONS NOMINAL IMPEDANCE: 50 2 FREQUENCY RANGE: Model 37: dc to 12.4 GHz Model 4T: de to 18.0 GHz MAXIMUM DEVIATION OVER FREQUENCY (dB): NOM ATTN (dB) 3T 4T 1-6 +0.3 +0.3 6-12 +03 +0.5 12-20 +0.5 +0.7 20 - 40 + 0.75 +1.0 40 - 60 + 1.0 +15 MAXIMUM SWR: FREQUENCY (GHz) | 3T 4T de - 4 1.15 1.15 4-8 1.20 1.20 8 - 12.4 1.25 1.25 12.4-18 N/A 1.35 POWER RATING: 2 watts average to 25 C ambient temperature, derated linearly to 0.5 watts at 125 C. 500 watts peak (5 sec pulse width; 0.2% duty cycle). POWER COEFFICIENT: < 0.005 dB/dB/Watts TEMPERATURE COEFFICIENT: < 0.0004 dB/dB/C TEMPERATURE RANGE: -55 C to +125 C CALIBRATION: Test data is available at additional cost. CONNECTORS: SMA connectors per MIL-STD-348 interface dimensions - mate nondestructively with MIL-C-39012 connectors. CONSTRUCTION: Passivated stainless steel body and connectors; gold plated beryllium copper female contacts. WEIGHT (Both Models): dB VALUE WEIGHT (Net) 1-12 3.9 g (0.14 oz) 20 4.3 g (0.15 oz) 30 4.9 g (0.23 oz) 40, 50, 60 6.5 g (0.23 oz) PHYSICAL DIMENSIONS: [ag__ DIM "A" { a { =+ 7 \ Gg (5/16) HEX _ NOM 7.1 (28) DIA. dB value DIM A+0.5 (0.2) 1-12 21.8 (0.86) 20 23.9 (0.94) 30 26.4 (1.04) 40, 50, 60 34.0 (1.34) NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified. MODEL NUMBER DESCRIPTION: Example J . r Basic Attenuation Model value (dB) Number 5305 Spectrum Drive, Frederick, Maryland 21703-7362 TEL: (301) 831-4701, 800-638-2048 FAX: 301-831-4570 17