Model 33 Medium Power Fixed Coaxial Attenuators dc to 8.5 GHz 25 Watts Bi-directional Design! POWER RATING (mounted horizontally): 25 watts average (bi-directional) to 25C ambient temperature, derated linearly to 2.5 watts @ 125C. Note: 3 dB model can handle 50 Watts average (bi-directional). 5 kilowatt peak (5 sec pulse width; 0.25% duty cycle). Features o Quality Connectors with special high temperature support beads. Designed to meet environmental requirements of MIL-A-3933. Low Intermodulation option available. Mode free operation to 10 GHz. o o o Specifications NOMINAL IMPEDANCE: 50 FREQUENCY RANGE: dc to 8.5 GHz dc-4 GHz 33 33-LIM + 0.30 + 0.30 + 0.60 3, 6 10, 20 30 --+ 0.40 + 0.70 TEMPERATURE COEFFICIENT: <0.0004 dB/dB/C TEMPERATURE RANGE: -55 C to 125 C CALIBRATION: Insertion loss test data supplied at 0.05, 4.0, and 8.0 GHz. Other test data can be provided at additional cost. CONNECTORS: Type N & SMA connectors per MIL-STD348 interface dimensions - mate nondestructively with MIL-C-39012 connectors. Options 4 - 8.5 GHz 33 33-LIM + 0.60 + 0.60 + 1.00 Description 1 2 MAXIMUM DEVIATION OVER FREQUENCY (dB): Nominal ATTN (dB) POWER COEFFICIENT: <0.0006 dB/dB/watt --+ 0.70 + 1.20 SMA Female SMA Male Options 3 4 Description Type N, Female Type N, Male CONSTRUCTION: Black, finned aluminum body, gold plated beryllium copper contacts. WEIGHT: 170 g (6 oz.) maximum PHYSICAL DIMENSIONS: -9.25 Specification Limit -9.50 -9.75 -10.00 -10.25 -10.50 Specification Limit -10.75 0.05 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 Typical Attenuation Accuracy of a 33-10-34 MAXIMUM SWR: Frequency (GHz) SWR dc - 4 4 - 8.5 1.20 1.30 Connector N Male N Female 1.40 NOTE: 1.30 Specification 1.20 DIM A 22.9 (0.90) 15.0 (0.59) DIM A 14.0 (0.55) 12.7 (0.50) All dimensions are given in mm (inches) and are maximum, unless otherwise specified. MODEL NUMBER DESCRIPTION: 1.10 Example: 1.00 0.05 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 33 - XX - XX* - LIM Typical SWR of a 33-10-34 3rd ORDER INTERMODULATION (33-XX-XX-LIM Only): Reflected Levels (IM3), -100 dBc and Through Levels (IM3), -110 dBc with two input signals @ 869 MHz and 891 MHz with average carrier power levels of +41 dBm each. IM specification at J2 limited to 10 Watts of input power. 46 Connector SMA Female SMA Male 10/23/01 Basic Model Number Attenuation Value (dB) IM Option** Connector Options 1st digit is J1 side 2nd digit is J2 side *Unit is bi-directional & full power may be applied to either J1 or J2. **Add -LIM to entire model number for Low Intermodulation option. Available in only 10, 20, 30 dB and 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