Model 3T Model 4T Fixed Coaxial Attenuators dc to 12.4 GHz dc to 18.0 GHz 2 Watts Ruggedized SMA Connectors POWER RATING: 2 watts average to 25C ambient temperature, derated linearly to 0.5 watts at 125C. 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 Features TEMPERATURE RANGE: -55C to +125C o o CALIBRATION: Insertion Loss and SWR Testing performed across frequency range. Test data available at additional cost. o o Rugged injection molded connectors. Designed to meet environmental requirements of MIL-A-3933. Small Package Size Usable to 22 GHz. Specifications 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 contacts. NOMINAL IMPEDANCE: 50 FREQUENCY RANGE: Model 3T: Model 4T: dc to 12.4 GHz dc to 18.0 GHz WEIGHT (Both Models): MAXIMUM DEVIATION OVER FREQUENCY: Nominal ATTN (dB) 3T 1-6 7 - 12 20 30, 40 50, 60 + + + + + 4T 0.30 0.30 0.50 0.75 1.00 + + + + + 0.30 0.50 0.70 1.00 1.50 dB VALUE WEIGHT (Net) 1 - 12 20 30 40, 50, 60 3.9 4.3 4.9 6.5 g g g g (0.14 (0.15 (0.17 (0.23 oz) oz) oz) oz) PHYSICAL DIMENSIONS: -9.25 -9.50 Specification Limit -9.75 -10.00 -10.25 Specification Limit -10.50 -10.75 0.05 2.50 5.00 7.50 10.00 12.50 15.00 17.50 dB VALUE 1 -12 20 30 40, 50, 60 Typical Attenuation Performance of 4T-10 MAXIMUM SWR: Frequency (GHz) dc - 4 4-8 8 - 12.4 12.4 - 18 3T 4T 1.15 1.20 1.25 --- 1.15 1.20 1.25 1.35 NOTE: DIM A + 0.5 (0.02) 21.8 (0.86) 23.9 (0.94) 26.5 (1.04) 34.0 (1.85) All dimensions are given in mm (inches) and are maximum, unless otherwise specified. MODEL NUMBER DESCRIPTION: Example: 1.40 1.30 4T - XX Specification 1.20 1.10 1.00 0.05 2.50 5.00 7.50 10.00 12.50 Typical SWR of a Model 4T-10 26 10/23/01 15.00 17.50 Basic Model Number Attenuation Value (dB) 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