isdn s-interface transformers surface mount, dual, 2000vrms meets pulse waveform template of ccitt i.430 when recommended transformer and chip pair are used excellent longitudinal balance 2kvrms isolation voltage available in tape and reel, tray or tube packaging recognized by ul mechanical schematic electrical specifications @ 25c ? operating temperature 0c to 70c 8 9 16 pe-6579x date code country of origin .530 max 13,46 .720 max 18,29 .600 15,24 16x .030 0,76 .120 typ 3,05 .050 typ 1,27 .520 13,21 .760 19,30 .100 typ 2,54 .700 17,78 .004/0,10 16 surfaces .010/.020 0,25/0,51 .122 3,10 .950 max 24,13 .100 2,54 .390 max 9,91 .040/.050 1,02/1,27 suggested pad layout 16 13 14 23 15 14 12 9 58 67 11 10 pri coil a coil b sec dimensions: inches mm unless otherwise specified all tolerances are . 010 0,25 see page 4 for packaging information. note: for low profile version of products listed above, refer to data sheet t613. part ratio a ocl pri b l l sec c w / w cd pri dcr pri dcr sec i dc c package/ number (2%) (mh min) (h max) (pf max) (pf max) ( 25%) ( 25%) (ma max) schematic a b a & b a b a & b a b a b a b pe-65792 1:1 1:2 22 5 15 100 42 80 2.4 2.3 2.4 4.0 1 sc-1 pe-65793 1:1 1:1 22 5 5 100 42 42 2.4 2.4 2.4 2.4 1 sc-1 pe-65795 1:2 1:2 22 15 15 100 80 80 2.5 2.5 4.3 4.3 1 sc-1 pe-65798 1:2.5 1:2.5 22 8-40 8-40 100 110 110 2.5 2.5 5.8 5.8 1 sc-1 pe-65799 1:2 1:2 22 11 11 100 180 180 2.4 2.4 4.4 4.4 1 sc-1 sc-1 (see pages 4 and 5 for table notes) usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 1 t604.d (1/06)
isdn s-interface transformers through hole, single, 2000vrms meets the pulse waveform template of ccitt i.430 when recommended transformer and chip pair are used excellent longitudinal balance 2kvrms or higher voltage isolation recognized by ul mechanicals schematics electrical specifications @ 25c ? operating temperature 0c to 70c .558 max 14,20 1 2 3 6 4 pe-6499x date code .120 .020 3,10 0,30 .400 10,20 .400 10,20 c l c l leads are 22 awg solderable 5 .558 max 14,20 .400 max 10,20 1 2 3 7 4 .120 .020 3,10 0,30 .400 10,20 .200 5,10 .400 10,20 c l c l leads are 22 awg solderable 6 5 .558 max 14,20 .558 max 14,20 .400 max 10,20 pe-6499x date code 1 2 3 4 8 7 6 5 .120 .020 3,10 0,30 .400 10,20 .200 5,10 .400 10,20 c l c l leads are 22 awg solderable .558 max 14,20 .558 max 14,20 .400 max 10,20 pe-6499x date code 6 4 1 3 2 5 pri : sec 1 3 2 7 4 6 5 pri : sec 8 5 1 4 2 3 7 6 pri : sec 2kv i solation , t hrough h ole , s ingle t ransformers see page 4 for packaging information. see page 4 for packaging information. see page 4 for packaging information. part ratio a ocl pri l l sec c w / w cd pri dcr pri dcr sec isolation i dc c package/ number (2%) (mh min) (h max) (pf max) (pf max) ( 25%) ( 25%) (vrms min) (ma max) schematic pe-64993 1ct:1ct 22 5 100 42 2.4 2.4 2000 1 is-1 pe-64994 1ct:1.8cs 22 15 100 160 2.5 4.2 2000 1 is-2 pe-64995 1ct:2ct 22 15 100 80 2.5 4.3 2000 1 is-1 pe-64996 1ct:2.5cs 22 30 100 150 2.5 5.8 2000 1 is-2 pe-64998 1cs:2.5cs 22 15-40 100 110 2.5 5.8 2000 1 is-3 pe-64999 1ct:2ct 22 11 100 180 2.4 4.4 2000 1 is-1 is-1 is-2 is-3 (see pages 4 and 5 for table notes) unless otherwise specified, all tolerances are .010 0,25 dimensions: inches mm usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 2 t604.d (1/06)
isdn s-interface transformers dual and single through hole mechanical schematic electrical specifications @ 25c ? operating temperature 0c to 70c 3 k v r einforced i nsulation , t hrough h ole , s ingle t ransformers a 1 12 4 7 6 9 pri : sec b 1 2 4 7 6 12 9 pri : sec 1 2 4 6 12 11 9 7 0.750 max 19,05 0.750 max 19,05 pe-6899x date code leads are 22 awg solderable unused pins not provided .500 12,70 max .130 3,30 .492 12,50 .591 15,00 .098 2,50 12 11 9 7 1 2 4 6 .197 5,00 electrical specifications @ 25c ? operating temperature 0c to 70c mechanical schematic .920 max 23,37 16 1 9 8 pe-6549x date code .130 .020 3,30 0,30 .400 10,20 .700 17,78 c l c l leads are 22 awg solderable .560 max 14,22 .400 max 10,20 .100 typ 2,54 pri sec 16 13 14 23 15 14 12 9 58 67 1110 coil a coil b note: refer to the equivalent single part number for electrical specifications. dimensions: inches mm unless otherwise specified all tolerances are . 010 0,25 see page 4 for packaging information. see page 4 for packaging information. part coil a coil b package/ number ratio a equivalent primary secondary ratio a equivalent primary secondary schematic single pins pins single pins pins pe-65492 1:1 pe-64993 1-4 16-13 1:2 pe-64995 5-8 12-9 id-1 pe-65493 1:1 pe-64993 1-4 16-13 1:1 pe-64993 5-8 12-9 id-1 pe-65495 1:2 pe-64995 1-4 16-13 1:2 pe-64995 5-8 12-9 id-1 pe-65498 1:2.5 pe-64998 1-4 16-13 1:2.5 pe-64998 5-8 12-9 id-1 pe-65499 1:2 pe-64999 1-4 16-13 1:2 pe-64999 5-8 12-9 id-1 pulse ratio a ocl pri l l sec c w / w c d dcr unbalanced package/ part number 2% (mh min) (h max) (pf max) (pf max) ( 25%) i dc c schematic (pri:sec) primary secondary (ma max) pe-68992 1cs:2ct 22 15 60 80 3.0 5.5 5 wd-1/b pe-68993 1cs:1 22 5 40 40 2.8 2.7 5 wd-1/a pe-68995 1cs:2 22 15 60 80 3.0 5.5 5 wd-1/a pe-68998 1cs:2.5 22 8-40 60 110 3.0 7.0 5 wd-1/a pe-68999 1cs:2 22 11 50 110 2.8 5.5 5 wd-1/ a reinforced insulation! id-1 wd-1 (see pages 4 and 5 for table notes) (see pages 4 and 5 for table notes) unless otherwise specified, all tolerances are .010 0,25 dimensions: inches mm usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 3 t604.d (1/06)
isdn s-interface transformers transformer selection and packaging ic ic dual single dual single manufacturer part number surface mount through hole, 2 kvrms through hole through hole, 3 kvrms notes a. in this catalog, turns ratio is expressed as ?primary:secondary?. the term ?ct? designates a center tapped winding. the term ?cs? designates a split center tap winding. a center tapped winding can be created by connect- ing two ends of a split center winding together on the printed circuit board. in isdn-s applications, the primary winding is the line side transformer winding. b. the minimum primary inductance and the maximum distributed capacitance satisfy the transmitter output and receiver input impedance requirements of ccitt i.430 for both the te and the nt. the maximum distributed capaci- tance allows sufficient margin for the capacitance of the ic and a protection diode network. it is consistent with the overall maximum value specified and the permitted length of the basic access te cord. c. the maximum specified unbalanced dc current capability is based on 20 mh minimum primary ocl. d. national recommends a 1:2 receive transformer, but used as a 1:1 ratio by connecting only half the secondary winding. see national?s application note. e. pe-65950, pe-68613 and pe-65853 are recommended for use with siemens peb 2080/2085 and help in meeting the required longitudinal balance. f. standard packaging for all chokes and transformers listed in this catalog is anti-static tubes. optional anti-static tray packaging can be ordered for the surface mount sc-1 and la-1 packages by adding an ?r? suffix to the part number, (ie: pe-65795 r ). optional tape and reel packaging can be ordered for all surface mount packages by adding a ?t? suffix to the part number, (ie: pe-65795 t ). g. for pe-65854, ocl at -40c is 27 h minimum. for maxi- mum performance use windings (1-8) and (2-7) as a pair and windings (3-6) and (4-5) as a pair. h. for transformers and choke modules, refer to data sheet t632. packaging information trans & rec transmit receive trans & rec transmit receive amd am 79c30a/79c32a pe-65799 pe-64999 pe-64999 pe-65499 pe-68999 pe-68999 at&t/lucent t7250/7256/7259 pe-65798 pe-64998 pe-64998 pe-65498 pe-68998 pe-68998 t7903 pe-65795 pe-64995 pe-64995 pe-65495 pe-68995 pe-68995 mietec mtc-2072 pe-65795 pe-64995 pe-64995 pe-65495 pe-68995 pe-68995 mitel mt8930 pe-65795 pe-64995 pe-64995 pe-65495 pe-68995 pe-68995 motorola mc145474/145475 pe-65793 pe-64993 pe-64993 pe-65493 pe-68993 pe-68993 mc145574 pe-65798 pe-64998 pe-64998 pe-65498 pe-68998 pe-68998 national d tp3420/3421 pe-65795 pe-64995 pe-64995 pe-65495 pe-68995 pe-68992 sgs thomson st5420, st5421 pe-65795 pe-64995 pe-64995 pe-65495 pe-68995 pe-68995 peb 2080/2081/2085 siemens psb 2186 pe-65795 pe-64995 pe-64995 pe-65495 pe-68995 pe-68995 peb 2084/2086 yamaha 7405b pe-65795 pe-64995 pe-64995 pe-65495 pe-68995 pe-68995 package f type part weight parts/tube parts/tray parts/reel reel diameter tape width pitch la-1 smt 2.0 grams 30 60 250 13 inches 24 mm 24 mm pa-2 smt 4.0 grams 35 ? 150 13 inches 32 mm 24 mm sc-1 smt 7.0 grams 20 50 150 13 inches 44 mm 24 mm sh-4 smt 0.3 grams 25 ? 1500 13 inches 24 mm 12 mm id-1 tht 7.0 grams 20 ? ? ? ? ? in-1 tht 2.5 grams 35 ? ? ? ? ? is tht 4.0 grams 35 ? ? ? ? ? vc-1 tht 3.5 grams 40 ? ? ? ? ? wd-1 tht 9.0 grams 25 ? ? ? ? ? (see pages 4 and 5 for table notes) usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 4 t604.d (1/06)
isdn s-interface transformers application notes 1. general information ? the s-interface is the standard- ized four-wire digital telephone access point defined by the ccitt i-series recommendations for the integrated services digital network. this ?basic rate access? accom- modates two 64kbps ?b-channels? for information, one 16kbps ?d-channel? intended for signaling and control, and 48 kbps for framing and other purposes, giving a total rate of 192kbps. the ccitt physical layer recommends that the user network interface be transformer coupled. a typical application circuit is presented in figure 1. the transformer provides isolation for the line card or the terminal from the line. it is also a way to provide phantom power feeding to the terminal over the s-loop. each end requires a transmit and a receive transformer. chokes are used in some applications to reduce common mode noise (see note 5). the transformers described in this data sheet are matched to the transceivers offered by the major ic manu- facturers listed. the use of a transformer-chip pair assures that all requirements of ccitt i.430 are met with respect to pulse waveform templates, impedance and longitudinal balance. in addition, the transformers provide the isolation voltages required by the regulatory agencies and are capable of passing surge voltage tests. 2. longitudinal balance for transformers ? the longitudi- nal conversion loss specification in i.430 includes a test setup that is intended for system evaluation, whether te or nt. such a test is performed with dc current present. the transformer plays an essential role in achieving the required balance. however, all other elements in the circuit should be also designed to provide the highest possible symmetry. these elements include the protection circuitry, series resistors, chip transmitter output and receiver input, as well as the cables used and the te cord where applicable. a high level of transformer balance compensates for some circuit ac-unbalance, and assures compliance of the system with i.430 on longitudinal conversion loss (lcl) and signal balance. this is accom- plished by a well ac-balanced winding configuration whereby the capacitive coupling between primary and secondary windings is evenly distributed. also, both halves of the lineside winding are well balanced. the transformers meet the following lcl specifications: ? 10khz to 300khz: 60db minimum ? 300khz to 1mhz: minimum value decreasing 20db/decade. ic xmit sec : pri rcv high freq choke ic rcv xmit low freq choke low freq choke high freq choke s-interface local power dc supply pri : sec nt te sec : pri pri : sec figure 1. typical isdn s-interface application circuit (continued on next page) usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 5 t604.d (1/06)
isdn s-interface transformers application notes a recommended test setup is shown in figure 2. a high inductance ?low frequency? common mode choke, such as pe-65950 or pe-65853, is recommended to improve balance, or to correct inherent unbalances of some circuits. 4. impedance requirements ? the requirements for minimum impedance in the inactive and powered-down states are expressed by impedance templates for both transmitter and receiver in nt and te. at the low frequency end of 1mhz, it is reasonable to assume that the impedance seen from the line is entirely capacitive. the maximum capacitance budget, derived from the templates, is somewhat different for the nt and the te. contributors to the total capacitance are: the chip output, the protection circuit, the transformer, common mode choke and any other element that may be present. in the te case, there is also the maximum allowable te cord impedance. here the maximum budget is 800pf. as a rule, the capacitances should be kept as low as possible in the interface circuit design. with the specified trans- former capacitances, it is possible to remain within budget and have a reasonable margin for measurement errors. 5. common mode chokes ? the ?high frequency? 4-wire common mode chokes shown on pages 7 and 8 provide an effective means of compliance with national and international regulations on emi. they are designed to be used in conjunction with either pulse?s isdn s-interface or t1/cept transformers as shown in figure 1. a high inductance ?low frequency? common mode choke is recommended to improve balance, or to correct inherent unbalances of some isdn s-interface circuits. 6. surge voltage capability for transformers and chokes ? longitudinal voltage peak: 2,400v 10/700sec ? metallic voltage peak: 800v 10/560sec 7. behavior under fault conditions ? telephony voltages may accidentally appear on the isdn s-interface line to the transformer. the transformer will withstand a dc current of 0.5 amps for 15 minutes without permanent damage. such current may be caused by the telephone central battery. the transformer will also survive ringing voltages. these are nominally 120v or 200v maximum at 20 to 60hz, limited by 1500 resistive or 400 to 600 inductive limiting. these may cause peak currents. 8. flammability ? materials used in the products are recog- nized ul94-vo. products meet the requirements of iec 695-2-2 (needle flame test). out hp-8751a network analyzer rb a vt el ism-1 pri sec terminating resistor ism-1 = wandel and goltermann signal balance ratio bridge figure 2. longitudinal balance test circuit (continued from previous page) usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 6 t604.d (1/06)
designed for 4-wire links, isdn-s/t and t1/e1/cept high frequency chokes for emi reduction low frequency chokes improve longitudinal balance in isdn-s/t links surface mount and through hole models available electrical specifications @ 25c ? operating temperature 0c to 70c l ow f requency h igh f requency 0 -10 -20 -30 -40 -50 attenuation (db) 100 khz 1 mhz 10 mhz frequency pe-65542 pe-65541 pe-65950/65853 0 -5 -10 -15 -20 -25 -30 attenuation (db) 1 mhz 10 mhz 100 mhz frequency pe-65555 pe-65854 pe-65554/65857 20k 18k 16k 14k 12k 10k 8k 6k 4k 2k 0 impedance ( ) 100 khz 1 mhz 10 mhz frequency pe-65542 pe-65950/65853 pe-65541 3.0k 2.8k 2.6k 2.4k 2.2k 2.0k 1.8k 1.6k 1.4k 1.2k 1k 800 600 400 200 0 impedance ( ) 1 mhz 10 mhz 100 mhz frequency pe-65555 pe-65554/65857 pe-65854 typical common mode attenuation for low frequency common mode chokes based on a 100 system. typical common mode attenuation for high frequency common mode chokes based on a 100 system. typical impedance for high frequency common mode chokes based on a 100 system. typical impedance for low frequency common mode chokes based on a 100 system. part number ocl pri l l sec c w / w dcr isolation package/ (h max) (pf max) ( max) (vrms min) schematic pe-65541 6.0 mh min 35 25 1.40 1,500 is-4/1c (through hole) pe-65542 1.0 mh min 10 10 0.70 1,500 is-4/1c (through hole) pe-65853 e 4.7 mh 30% 1 60 1.20 500 pa-2/5c (surface mount) pe-65950 e 4.7 mh 30% 1 50 1.00 500 is-4/1c (through hole) pe-68613 e 4.7 mh 30% 1 60 1.00 500 vc-1/5c (through hole) pe-65554 24.0 h min .20 15 0.30 500 in-1/c (through hole) pe-65555 8.0 h min .20 10 0.25 500 in-1/c (through hole) pe-65854 f 47.0 h min .18 20 0.40 500 sh-4/c (surface mount) pe-65857 22.5 h min .23 17 0.30 500 la-1/c (surface mount) note: for additional common mode chokes, refer to data sheet g002 . isdn s-interface transformers common mode chokes for telecom applications usa 858 674 8100 ? ? uk 44 1483 401 700 ? ? france 33 3 84 35 04 04 ? ? singapore 65 6287 8998 ? ? shanghai 86 21 32181071 ? ? china 86 769 5538070 ? ? taiwan 886 2 26980228 www.pulseeng.com 7 t604.d (1/06)
isdn s-interface transformers common mode chokes for telecom applications mechanicals schematics .400 max 10,16 1 2 4 5 10 9 7 6 pe-xxxxx date code country of origin .115 .010 2,92 0,25 .200 5,08 c l c l .500 max 12,70 .505 max 12,83 .400 10,16 .300 7,62 .100 2,54 8765 1234 pe-xxxxx date code country of origin .595 max 15,11 .480 max 12,20 .130 .010 3,30 0,25 .300 7,62 .100 2,54 c l c l .300 7,62 max .130 .010 3,30 0,25 .400 max 10,20 .558 max 14,20 1 3 5 7 2 4 6 8 pe-xxxxx date code country of origin .558 max 14,20 .200 5,10 c l c l .400 10,20 .400 10,20 .270 6,86 .050 1,27 .300 7,62 .100 2,54 suggested pad layout .098 2,49 max .100 2,54 85 1 4 pe-xxxxx date code country of origin .360 9,14 max .340 8,64 max .004/0,10 .070 1,78 .030 0,76 .600 15,24 .200 5,08 .072 1,83 .100 2,54 pe-65853 date code country of origin 10 6 15 .550 max 13,97 .720 max 18,29 .530 max 13,46 .010 / .020 0,25 / 0,51 .390 max 9,91 suggested pad layout .004/0,10 .400 10,16 .760 19,30 .520 13,20 .200 5,08 .120 typ 3,05 .050 typ 1,30 .100 2,54 .040 / .050 1,01 / 1,27 10 1 9 2 7 4 6 5 5c 1 8 2 7 3 6 4 5 c 1 2 3 4 5 6 7 8 1c .030 0,76 pe-xxxxx date code country oforigin 85 14 .100 2,54 .085 2,16 .600 max 15,24 .475 max 12,06 .475 max 12,06 .340 max 8,64 suggested pad layout .300 7,62 .640 16,26 .400 10,16 .120 3,05 .050 typ 1,27 .100 typ 2,54 .004/0,10 .040 / .050 1,02 / 1,27 dimensions: inches mm unless otherwise specified all tolerances are . 010 0,25 see page 4 for packaging information. see page 4 for packaging information. see page 4 for packaging information. see page 4 for packaging information. see page 4 for packaging information. see page 4 for packaging information. in-1 vc-1 sh-4 is-4 la-1 pa-2 www.pulseeng.com t604.d (1/06) for more information: pulse worldwide headquarters 12220 world trade drive san diego, ca 92128 u.s.a. www.pulseeng.com tel: 858 674 8100 fax: 858 674 8262 pulse northern europe 3 huxley road surrey research park guildford, surrey gu2 5re united kingdom tel: 44 1483 401700 fax: 44 1483 401701 pulse southern europe zone industrielle f-39270 orgelet france tel: 33 3 84 35 04 04 fax: 33 3 84 25 46 41 pulse south asia 150 kampong ampat #07-01/02 ka centre singapore 368324 tel: 65 6287 8998 fax: 65 6280 0080 pulse north asia 3f-4, no. 81, sec. 1 hsin tai wu road hsi-chih taipei hsien taiwan tel: 886 2 26980228 fax: 886 2 26980948 pulse china headquarters no. 1 industrial district changan, dongguan china tel: 86 769 5538070 fax: 86 769 5538870 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 trademarks or registered trademarks of their respective owners. ? copyright, 2006. pulse engineering, inc. all rights reserved. pulse north china room 1002 no. 819 nanjing west rd shanghai china tel: 86 21 32181071 fax: 86 21 32181396
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