part turns ratio dcr return loss insertion loss* transhybrid longitudinal isolation number trans. rec. (max) (db min) (db max) loss (db min) balance voltage (db min) (vrms) B4008 (tht) 2:1 1:1 0.5 ? 138 khz to 1 mhz: 13.5 138 khz to 20 mhz: 0.5 138 khz to 1 mhz: 30 138 khz to 300 khz: 60 2000 b4025 (smt) 1 mhz to 20 mhz: 20 1 mhz to 20 mhz: 25 300 khz to 1 mhz: 50 1 mhz to 20 mhz: 30 note: common mode chokes to reduce common mode ingress from am broadcast or ham radios are available. see data sheet b912 for parts b 4001 and b4003. surge voltage capability: metallic: 800 vpeak 10/560 sec. long.: 2400 vpeak 10/700 sec. surge over the extended temperature range: insertion loss can increase to 1 db. return loss can drop to 7 db from 138 khz to 300 khz, and 12 db from 300 khz to 1 mhz. vdsl transformers for use with broadcom ? bcm 6010/6020 electrical specifications @ 25c ? operating temperature 0c to 70c supports speeds up to 25.92 mbps provides two-wire to four-wire conversion surface mount or through hole package schematics weight ...............2.8 grams tube ......................20/tube
0 ? 8 16 x .040 1,02 .395 10,03 suggested pad layout .700 17,78 .100 2,54 .040 1,02 .540 13,72 .100 2,54 .235 max 5,97 .004/0,10 16 surfaces .012 0,30 1.005 max 25,53 .100 2,54 .700 17,78 .505 max 12,83 date code country of origin b4025 B4008 b4025 mechanicals b925.a (11/03) for more information : printed on recycled paper. ?2003, pulse engineering, inc. dimensions: inches mm unless otherwise specified, all tolerances are .010 0,25 1 19 5 2 4 17 6 14 10 12 7 9 13 1:1 2:1 pin 13: internal connection only
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"## " B4008 b4025 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 6287 8998 fax: 65 6280 0080 hong kong (china/hong kong) 9/f, phase 2, tai sang shatin warehouse centre 6 wong chuk yeung street fotan, shatin, hong kong tel: 852 2788 6588 fax: 852 2776 1055 distributor performance warranty of products offered on this data sheet is limited to the parameters specified. data is subject to change without notice. other brand and product names mentioned herein may be products and/or registered trademarks of their respective owners.
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