CRF-10A-250

CRF-A Series BI-DIRECTIONAL COUPLERS 5 to 1500 MHz / 4-Port / Multi-Octave / Minimal Size and Weight / Hi-Rel Hermetic Flatpack PRINCIPAL SPECIFICATIONS Model Number CRF-10A-250 CRF- 20A-250 CRF-11A-1000 CRF-20A-1000 Frequency Range, MHz 5 - 500 5 - 500 100 - 1500 100 - 1500 Performance Bandwidth, MHz 5 - 500 5 - 500 10 - 400 100 - 1500 500 - 1000 100 - 1500 500 - 1000 ¤ Coupling Value, dB, Nom. 10 ±1.0 20 ±1.0 20 ±1.0 11 ±1.0 11 ±1.0 20 ±1.0 20 ±1.0 Frequency Sensitivity, dB, Max. ± 0.5 ± 0.75 ± 0.5 ± 0.5 ± 0.5 ± 0.5 ± 0.5 Directivity, *Insertion dB, Loss, dB, Min. Max. 20 18 20 18 20 18 20 1.3 1.0 0.6 1.5 1.2 1.5 1.2 VSWR, Max. 1.5:1 1.5:1 1.3:1 1.7:1 1.5:1 1.7:1 1.5:1 ¤ Coupling is Referenced to the Input * Insertion Loss excludes Coupling Loss Outline of A-Size Package GENERAL SPECIFICATIONS Impedance: CW Input: Weight, nominal: Operating Temperature: 50 Ω nom. 1 W max. 0.1 oz (2.8 g) -- 55° to +85°C OPTIONAL SPECIFICATIONS Coupling Values: Frequency Bands: NOTES: 1. Tolerance on 3 place decimals ± .010(.25) except as noted. 2. Dimensions in inches over millimeters. 3. Dimensions marked with * apply only at body. 4. All unmarked pins are case ground. 5 to 30 dB up to 2.5 GHz see CBF series Close tolerance Coupling: ± 0.5 dB Three Port Equivalents: General Notes: 1. Merrimac directional couplers are available in a variety of packages to suit most applications. The CRF-A series utilizes the standard flatpack which is suitable for aerospace applications where size, weight and reliability are important considerations. 2. Applications of directional couplers include monitoring of incident and reflected power,signal sampling for control loops and test signal injection devices in BITE. These Bi-Directional Couplers have both coupled ports available but they may be ordered with one coupled port terminated internally as in the CBF series of directional couplers. 3. Merrimac Couplers may be ordered with coupling values up to 30 dB covering selected frequency bands up to 65 GHz. 4. These units comply with MIL-C-15370 and can be supplied screened for compliance with additional specifications you specify for military and aerospace applications requiring higher reliability. 25Mar96 For further information contact MERRIMAC / 41 Fairfield Pl., West Caldwell, NJ, 07006 / 973-575-1300 / FAX 973-575-0531