113 10/02 applications overcurrent protection in mdf modules features compliant with itu-t k20, k21, k45 ? basic level lightning surges (10/700 s) ? basic level power induction (600 v, 1 a, 0,2 s) ? power contact criteria a/b (230 v, 15 min.) suitable for continous connection to mains voltages of 110/230 vac in tripped (high ohmic) condition narrow resistance tolerance for clamp contacting and soldering suitable for vertical smd placement on pcb soldering profile on request options alternative tolerances and resistances on request delivery mode on request general electrical data rated voltage v n maximum switching voltage v smax resistance tolerance ? r n operating temperature range ( v = 0) t op ( v = 230 v) t op resistance matching per packing unit r 25, match 60 230 15 % ? 25/+ 125 0/+ 60 on request vdc vac c c ? electrical specification and ordering code type r n ? i n @ 25 c ma i n @ 40 c ma i s @ 25 c ma i smax @ 230 vac a t s @ i smax, 230 vac s ordering code 1) r 212 12 120 85 350 1,5 < 1,5 B59212R0080B140 2,65 max. termination 5,95 max. 5,95 max. tpt0788-4-e 1,2 1,8 tpt0778-w 1,2 2,1 dimensions (mm) recommended solder pad dimensional drawing 1) the compliance to technical requirements of ptc thermistors intended for deployment in main distribution frames, especially rated current and switching characteristics, must be verified in the specific module. b59212 r 212 mdf applications, metallized square disk telecom preliminary data
114 10/02 characteristics (typical) ptc resistance r ptc versus ptc temperature t ptc (measured at low signal voltage) rated current i n versus ambient temperature t a (measured in still air) tpt0849-p 0 ? c B59212R0080B140 ptc r ptc t 2 1 10 0 10 10 10 5 4 3 10 10 10 7 6 ? 10 50 100 150 200 250 n, 25 ? c t n , a a t 0,2 tpt0848-g 010203040506070 ? c90 0,4 0,6 0,8 1,0 1,2 1,6 B59212R0080B140 b59212 r 212 mdf applications, metallized square disk telecom
herausgegeben von epcos ag unternehmenskommunikation, postfach 80 17 09, 81617 mnchen, deutschland ++49 89 636 09, fax (0 89) 636-2 26 89 ? epcos ag 2002. vervielf?ltigung, ver?ffentlichung, verbreitung und verwertung dieser broschre und ihres inhalts ohne aus- drckliche genehmigung der epcos ag nicht gestattet. bestellungen unterliegen den vom zvei empfohlenen allgemeinen lieferbedingungen fr erzeugnisse und leistungen der elek- troindustrie, soweit nichts anderes vereinbart wird. diese broschre ersetzt die vorige ausgabe. fragen ber technik, preise und lieferm?glichkeiten rich ten sie bitte an den ihnen n?chstgelegenen vertrieb der epcos ag oder an unsere vertriebsgesellschaften im ausland. bauelemente k?nnen aufgrund technischer erfordernisse gefahrstoffe ent- halten. ausknfte darber bitten wir unter angabe des betreffenden typs ebenfalls ber die zust?ndige vertriebsgesellschaft ein - zuholen. published by epcos ag corporate communications, p.o. box 80 17 09, 81617 munich, germany ++49 89 636 09, fax (0 89) 636-2 26 89 ? epcos ag 2002. reproduction, publication and dissemination of this brochure and the information contained therein without epcos? prior express consent is prohibited. purchase orders are subject to the general conditions for the s upply of products and services of the electrical and electronics industry recommended by the zvei (german electrical and el ectronic manufacturers? associ ation), unless otherwise agreed. this brochure replaces the previous edition. for questions on technology, prices and delivery please contact the sales offices of epcos ag or the international representa- tives. due to technical requirements components may contain dangerous substances. for information on the type in question please also contact one of our sales offices.
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