page 1 of 2 feature advantages feature 1 high power handling: ? up to 25w as a splitter ? up to 20w as a combiner suitable for many high power applications. very low insertion loss, 0.17 db very low insertion loss minimizes intrinsic losses, making this model a suitable candidate for high power signal distribution applications where low loss is a requirement. very low unbalance: ? 0.05 db amplitude unbalance ? 0.5? phase unbalance za2cs-251-20+ produces nearly equal output signals, ideal for parallel path / multichannel systems. good isolation, 25 db minimizes interference between input ports. excellent vswr, 1.1:1 typ. provides excellent thru-path transmission with low signal refection. the big deal ? high power, up to 20w as a combiner (each input port) ? low insertion loss, 0.17 db ? high isolation, 25 db ? low unbalance, 0.5?/0.05 db product overview mini-circuits ZA2CS-251-20W+ is a 2-way 0? splitter/combiner providing 20w power handling and very low inser - tion loss across the 10 to 250 mhz band, covering applications including am/fm radio, vhf/uhf, instrumentation and more. its low intrinsic losses provide excellent signal fdelity from input to output, even to high-power signals. this model also provides high isolation and very low amplitude and phase unbalance. it features rugged construc - tion with your choice of sma or n-type connectors and a heat sink for effcient cooling. key features za2cs-251- 20w+ 2 way-0 50 ? 10 to 250 mhz 20 watt high power combiner coaxial case style: aw254 notes a. performance and quality attributes and conditions not expressly stated in this specifcation document are intended to be excluded and do not form a part of this specifcation document. b. electrical specifcations and performance data contained in this specifcation document are based on mini-circuits applicable established test performance criteria and measurement instructions. c. the parts covered by this specifcation 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 benefts 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 ? www.minicircuits.com p.o. box 350166, brooklyn, ny 11235-0003 (718) 934-4500 sales@minicircuits.com
page 2 of 2 typical performance data electrical specifcations at 25c maximum ratings coaxial connections sum port s port 1 1 port 2 2 operating temperature -55c to 60c storage temperature -55c to 100c outline drawing outline dimensions ( ) inch mm electrical schematic 2 way-0 q 50 : 10 to 250 mhz 20 watt high power combiner rev. b m156482 ZA2CS-251-20W+ ed-17141 jx/cp/am 160424 coaxial a b c d e f 3.00 2.06 1.92 .100 2.500 1.525 76.20 52.32 48.77 2.54 63.50 38.74 g h j k wt .125 1.000 .50 2.00 grams 3.18 25.40 12.70 50.80 330 frequency (mhz) total loss 1 (db) amplitude unbalance (db) isolation (db) phase unbalance (deg.) vswr s vswr 1 vswr 2 s-1 s-2 features ? high power, up to 20w input power as combiner ? low insertion loss, .17 db typ. ? high isolation, 30 db typ. ? excellent vswr, 1.1:1 typ. applications ? instrumentation ? vhf/uhf ? am/fm radio ZA2CS-251-20W+ connectors model n-type ZA2CS-251-20Wn+ sma ZA2CS-251-20Ws+ case style: aw254 permanent damage may occur if any of these limits are exceeded. * maximum power input for each port. 10 3.06 3.05 0.01 24.19 0.01 1.16 1.27 1.27 25 3.14 3.12 0.02 30.88 0.01 1.11 1.11 1.11 35 3.15 3.13 0.02 32.38 0.02 1.11 1.09 1.09 45 3.16 3.14 0.02 32.61 0.02 1.11 1.09 1.09 50 3.16 3.14 0.02 32.30 0.03 1.11 1.09 1.09 60 3.16 3.15 0.02 31.28 0.02 1.11 1.08 1.08 65 3.17 3.15 0.02 30.68 0.02 1.11 1.08 1.08 75 3.17 3.15 0.01 29.51 0.03 1.11 1.08 1.08 85 3.17 3.16 0.01 28.43 0.03 1.11 1.08 1.08 90 3.17 3.16 0.01 27.93 0.03 1.11 1.08 1.08 120 3.18 3.17 0.01 25.60 0.05 1.12 1.08 1.08 150 3.18 3.18 0.01 23.82 0.06 1.12 1.08 1.08 180 3.18 3.19 0.00 21.82 0.08 1.13 1.08 1.08 210 3.20 3.21 0.01 20.31 0.12 1.15 1.09 1.08 250 3.24 3.25 0.02 19.47 0.16 1.17 1.10 1.09 parameter frequency (mhz) min. typ. max. unit frequency range 10 250 mhz insertion loss above 3.0 db 10 - 250 25 - 120 0.25 0.17 0.5 0.4 db isolation 10 - 250 25 - 120 15 20 20 25 db phase unbalance 10 - 250 0.5 2 degree amplitude unbalance 10 - 250 .05 0.25 db vswr (port s) 10 - 250 1.15 1.5 :1 vswr (port 1-2) 10 - 250 1.20 1.6 :1 power input as combiner* 10 - 250 10 w 25 - 120 20 as splitter 10 - 250 25 25 - 120 65 3 3.1 3.2 3.3 3.4 10 58 106 154 202 250 total loss (db) frequency (mhz) za2cs - 251 - 20w+ total loss s-1 (db) s-2 (db) 15 20 25 30 35 10 58 106 154 202 250 isolation (db) frequency (mhz) za2cs - 251 - 20w+ isolation 1.05 1.1 1.15 1.2 1.25 1.3 10 58 106 154 202 250 vswr frequency (mhz) za2cs -251-20w+ vswr vswr s vswr 1 vswr 2 1. total loss = insertion loss + 3db splitter theoretical loss. notes a. performance and quality attributes and conditions not expressly stated in this specifcation document are intended to be excluded and do not form a part of this specifcation document. b. electrical specifcations and performance data contained in this specifcation document are based on mini-circuits applicable established test performance criteria and measurement instructions. c. the parts covered by this specifcation 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 benefts 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 ? www.minicircuits.com p.o. box 350166, brooklyn, ny 11235-0003 (718) 934-4500 sales@minicircuits.com +rohs compliant the +suffix identifies rohs compliance. see our web site for rohs compliance methodologies and qualifications
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