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| CBF-20A-1250 SQ DIRECTIONAL COUPLERS REV: 001, 04/18/02 * SPACE QUALIFIED * 100 - 2000 MHz DIRECTIONAL COUPLER * INTERNALLY TERMINATED REVERSE PORT SERIES 05 TECHNICAL DESCRIPTION / APPLICATION The CBF-20A-1250 SQ Directional Coupler covers 100 - 2000 MHz with a special lumped element design to reduce size, while maintaining high performance. Parts, materials and processes are in accordance with Merrimac document CENG-0001, "Standard Design Requirements for Space Qualified Devices". GENERAL SPECIFICATIONS MODEL NUMBER FREQUENCY RANGE MHz CBF-20A-1250 SQ 100 - 2000 COUPLING dB 20 1 CW POWER RATING MAIN LINE MAX. 1 WATT INSERTION LOSS dB MAX. 1.5 DIRECTIVITY dB MIN. 18 WEIGHT MAX. VSWR MAX. 1.7:1 FREQUENCY SENSITIVITY dB MAX. 0.5 2.8 g PACKAGE OUTLINE .385 0.020 [9.78 .508] .312 .030 [7.92 0.76] (TYP) IN .150 MAX. [3.81] OUT .510 0.020 [12.94 0.508] *.350 TYP. [8.89] *.250 TYP. [6.35] FWD GND *.100 TYP. [2.54] *.080 TYP. [2.03] *.015 0.005 [0.38 0.127] TYP. 8 PINS 5 *.050 0.015 [1.27 0.381] NOTES: 1. TOLERANCE ON 3 PLACE DECIMALS .010 [.25mm] EXCEPT AS NOTED. 2. MAX. IS LARGEST DIMENSION ALLOWED. 3. DIMENSIONS = INCHES [mm] 4. METRIC EQUIVALENTS ARE TO THE NEAREST .01 mm. 5. ALL LEADS TO BE WITHIN .010 [.25mm] OF EACH OTHER AT THIS DIMENSION. 6. DIMENSIONS MARKED WITH * APPLY ONLY AT BODY. 7. ALL UNMARKED PINS ARE CASE GROUND. Merrimac Industries, RF & Microwave Products Division / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 973.575.1300 / Fax: 973.575.0531 / Internet: www.Merrimacind.com |
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