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dimensions: inches mm unless otherwise specified, all tolerances are .010 0,25 part impedance ratio 1 bandwidth 2, 3 primary number pri:sec (mhz typ) schematic pins (2%) 2 db 1 db cx2038 75 ? :75 ? up to 1500 4.5-1000 c 4-6 cx2039 50 ? :50 ? up to 1500 4.5-1000 c 4-6 note: optional tape & reel packaging can be ordered by adding a ? t ? suffix to the part number (ex: cx2040 t ). rf transformers transformers for wideband rf applications electrical specifications @ 25c ? operating temperature -40c to +85c miniature surface mount package various impedance ratios available excellent insertion loss ideal for balanced-to-unbalanced applications products from .5 to 1500 mhz bandwidth raq preliminary c203.p (6/02) u.s: 858 674 8100 ? ? u.k: 44 1483 401 700 ? ? france: 33 3 84 35 04 04 ? ? singapore: 65 287 8998 ? ? taiwan: 886 2 2698 0228 ? ? http://www.pulseeng.com tape & reel . . . . . . . . . . . . . . . . . . . . . .1000 /reel tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 /tray power rating . . . . . . . . .30 ma max; 0.25 w max part impedance ratio 1 turns ratio bandwidth 2, 3 insertion loss primary number pri:sec pri:sec (mhz typ) @ midband schematic pins (2%) (2%) 3 db 2 db 1 db (db typ) cx2040 1:1 1:1 1.5-500 2.5-400 5-350 0.9 a 4-6 CX2043 1.5:1 1.5:1 ? ? 1-1000 0.2 d 3-6 cx2044 1.5:1 1.5:1 ? 1.0-500 5-100 0.2 a 1-3 cx2045 1:2 1:1.414 ? ? 3-300 0.8 b 4-6 cx2047 1:4ct 1:2ct ? .5-300 1.5-100 0.24 b 4-6 cx2049 1:8ct 1:2.83ct 2-500 ? ? tbd b 4-6 electrical specifications @ 25c ? operating temperature -40c to +85c
printed on recycled paper. ?2002, pulse engineering, inc. preliminary c203.p (6/02) application notes a. bandwidth specifications for cx2040 and cx2047 are for a 50 ? system. b. materials used in the products are ul94-v0 recognized. products meet requirements of iec 695-2-2 (needle flame test). c. cx2038 , cx2039 and CX2043 transformer configurations do not provide dc isolation between primary and secondary windings. d. for additional impedance ratios and frequency ranges, please contact applications engineering. e. pick and place operation: smooth upper surface of device allows automatic pick and place. notes from tables 1. impedance and turns ratios are specified primary:secondary. (ct=center tap). 2. bandwidth is referenced to midband loss. 3. these transformers are verified to operate from -40c to +85c. contact applications engineering for performance data. rf transformers transformers for wideband rf applications !"#$%&'%
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&&()* +',-%"!./012 performance warranty of products offered on this data sheet is limited to the parameters specified. data is subject to change w ithout notice. other brand and product names mentioned herein may be products and/or registered trademarks of their respective owners. for more information : united states (worldwide) 12220 world trade drive san diego, ca 92128 u.s.a. http://www.pulseeng.com tel: 858 674 8100 fax: 858 674 8262 united kingdom (northern europe) 1 & 2 huxley road the surrey research park guildford, surrey gu2 5re united kingdom tel: 44 1483 401700 fax: 44 1483 401701 france (southern europe) zone industrielle f-39270 orgelet france tel: 33 3 84 35 04 04 fax: 33 3 84 25 46 41 taiwan, r.o.c. (northern asia) 3f-4, no. 81, sec. 1 hsintai wu road hsi-chih, taipei hsien taiwan, r.o.c. tel: 886 2 2698 0228 fax: 886 2 2698 0948 singapore (southern asia) 150 kampong ampat #07-01/02 ka centre singapore 368324 tel: 65 287 8998 fax: 65 280 0080 hong kong (china/hong kong) 19/f, china united plaza 1008 tai nan west street cheung sha wan, kowloon hong kong, china tel: 852 2788 6588 fax: 852 2776 1055 distributor

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