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CRF-10A-250 SQ
DIRECTIONAL COUPLERS
REV: 001, 04/18/02
* SPACE QUALIFIED * 5 - 500 MHz DIRECTIONAL COUPLER * FORWARD AND REVERSE COUPLING
SERIES 05
TECHNICAL DESCRIPTION / APPLICATION
The CRF-10A-250 SQ Directional Coupler covers 5 - 500 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 CRF-10A-250 SQ 5 - 500 COUPLING dB 10 1 CW POWER RATING MAIN LINE MAX. 1 WATT INSERTION LOSS dB MAX. 1.3 DIRECTIVITY dB MIN. 20 WEIGHT MAX. VSWR MAX./TYP. 1.5:1 / 1.3:1
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 REV
*.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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