ZDC-20-1+ ZDC-20-1 Coaxial Directional Coupler 50 25 to 400 MHz Maximum Ratings Operating Temperature -55C to 100C Storage Temperature -55C to 100C Features * excellent directivity, 35 dB typ. * excellent mainline loss, 0.3 dB typ. * high input power, up to 5W max. * rugged shielded case Permanent damage may occur if any of these limits are exceeded. Coaxial Connections INPUT OUTPUT COUPLED 3 2 1 CASE STYLE: M22 Connectors Model BNC ZDC-20-1(+) BRACKET (OPTION"B") BRACKET (OPTION"BR") Applications * VHF/HF * instrumentation * communication receivers & transmitters * amateur radio Price $51.95 ea. $5.00 $1.50 Qty. (1-9) (1+) (1+) +RoHS Compliant The +Suffix identifies RoHS Compliance. See our web site for RoHS Compliance methodologies and qualifications Directional Coupler Electrical Specifications FREQ. RANGE (MHz) Outline Drawing COUPLING (dB) MAINLINE LOSS1 (dB) L fL-fU Nom. Flatness 25-400 200.5 0.5 M DIRECTIVITY (dB) U L Typ. Max. Typ. Max. Typ. Max. Typ. 0.2 0.25 0.3 0.35 0.35 0.5 VSWR (:1) M POWER INPUT (W) L MU Min. Typ. Min. Typ. Min. Typ. Max. Max. 20 35 25 25 20 1.25 3.0 5.0 25 U L = 25-50 MHz M = 50-300 MHz U= 300-400 MHz 1. Mainline loss includes theoretical power loss at coupled port. Typical Performance Data Frequency (MHz) Outline Dimensions ( inch mm ) A 2.25 57.15 B 1.38 35.05 C 1.24 31.50 D .50 12.70 E .150 3.81 F 3.100 78.74 G .138 3.51 H 1.238 31.45 J 3.25 82.55 K .10 2.54 L .40 10.16 M 1.15 29.21 N 1.86 47.24 P .64 16.26 S wt .150 grams 3.81 74.0 Mainline Loss (dB) In-Out Coupling (dB) In-Cpl Directivity (dB) In Return Loss (dB) Out Cpl 25.00 45.00 80.00 120.00 160.00 0.13 0.14 0.14 0.14 0.14 19.97 19.98 19.98 20.01 20.02 35.76 35.38 34.30 33.33 32.39 34.28 33.99 33.78 34.16 33.90 33.88 31.38 27.78 24.90 22.55 39.90 38.66 36.78 35.11 33.12 210.00 260.00 310.00 360.00 400.00 0.15 0.15 0.10 0.15 0.21 20.08 20.13 20.15 20.23 20.28 30.90 29.21 27.48 25.48 24.37 34.23 33.58 32.70 31.39 29.89 20.48 18.79 17.46 16.45 15.74 31.35 29.50 28.08 26.85 26.00 ZDC-20-1 MAINLINE LOSS 70 COUPLING 60 0.3 DIRECTIVITY 50 40 0.2 30 20 0.1 10 0 0.0 25 100 175 250 FREQUENCY (MHz) 325 400 50 25 100 175 250 FREQUENCY (MHz) 325 400 Electrical Schematic ZDC-20-1 RETURN LOSS RETURN LOSS (dB) at RF level of -10 dBm COUPLING & DIRECTIVITY (dB) MAINLINE LOSS (dB) ZDC-20-1 COUPLING & DIRECTIVITY at RF level of -10 dBm 0.4 at RF level of -10 dBm IN 42 OUT CPL 34 26 18 10 25 100 175 250 FREQUENCY (MHz) 325 400 Notes A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document. B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit's applicable established test performance criteria and measurement instructions. C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, "Standard Terms"); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits' website at www.minicircuits.com/MCLStore/terms.jsp Mini-Circuits (R) www.minicircuits.com P.O. Box 35166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com REV. B M137477 ZDC-20-1 WZ/TD/CP/AM 131017 Page 1 of 1