etaldoc 782/4 page 1 of 4 june 2005 product data sheet line matching transformer P5122 features applications ? lead-free (pb-free) ? set top boxes ? rohs compliant ? telecommunications ? 11mm (0.43") seated height ? voice ? industry standard pinout ? least-cost routers ? iec 60950 and ul 60950 certified ? v.22bis ? high thermal stability description P5122 is intended for low-cost, low-speed data and voice applications. it is a direct substitute for industry standard p3189, being mechanically compatible and having identical signal/distortion and matching characteristics, and is suitable for supplementary insulation, 250v working. P5122 uses patented design and construction methods to achieve excellent signal performance and safety isolation to international standards. P5122 is certified to iec 60950 and ul 60950. P5122 ia a ul recognized component and is supported by an iec cb certificate. the part is completely lead-free, compliant with rohs directive 2002/95/ec, and suitable for lead-free and conventional processing. patented
P5122 etaldoc 782/4 page 2 of 4 june 2005 specifications electrical at t = 25oc and as circuit fig. 2 unless otherwise stated. parameter conditions min typ max units insertion loss f = 2khz, r l = 560 - - 1.5 db frequency response 200hz - 4khz - - 0.2 db return loss 200hz - 4khz 18 - - db third harmonic distortion (1) 300hz - 6dbm 697hz - 6dbm - - - - -62 -70 dbm dbm voltage isolation (2) 50hz dc 2.12 3.0 - - - - kvrms kv operating range: functional storage ambient temperature 0 -40 - - +70 +85 oc oc lumped equivalent circuit parameters as fig. 1 dc resistance, r dc (3) sum of windings 124 - 152 leakage inductance l 14.5 - 18 mh shunt inductance lp (4) 10mv 200hz 1.4 - - h shunt loss rp (4) 10mv 200hz 4 - - k notes 1. third harmonic typically exceeds other harmonics by 20db. 2. components are 100% tested at 3.25kv dc. 3. caution: do not pass dc through windings. telephone line current, etc. must be diverted using choke or semiconductor line hold circuit. 4. at signal levels greater than 100mv, lp will increase and rp will decre ase slightly but the effect is usually favourable to the return loss characteristic. patented equivalent circuit fi g . 1 ideal 1:1 ? l ? l ? r ? r
P5122 etaldoc 782/4 page 3 of 4 june 2005 matching recommendations construction dimensions shown are in millimetres (inches). geometric centres of outline and pin grid coincide within a tolerance circle of 0.6mm windings may be used interchangeably as primary or secondary. recommended circuit fi g . 2 560 li ne 600 * if return loss > 16db, 300hz - 4khz is acceptable, blocking cap acitor may be relaxed to 4.7 f 33nf 27nf 5% + _ 2% + _ * +50% 20% _ 6.8 f +50% 20% _ 5% + _ 600 match figure 3 gives flat rx and tx responses against the ctr21 complex reference impedance (typically around 0.5db 300hz - 3.4khz). return loss is typically better than 20db. the circuit values in parentheses give optimum flatness at a small sacrifice in return loss. for circuits with existing board drillings, figure 4 gives good return loss (>20db) and rx flatness against the ctr21 complex reference impedance, but tx flatness is degraded by the use of this topology. european ctr21 complex match recommended circ uit fi g . 3 150 (220) line 270 750 750 (680) 56nf (150nf) 100nf 150nf 2.2 f fi g . 4 820 li ne 270 750 330 27nf 68nf 150nf 2.2 f connections dimensions fig 5 ident pi n ? 0.70mm (0.028) max finish: snag over ni barrier. jes d97 c ateg ory = e 2. notes: dimension ?a? : 3.0 to 3.5mm (0.118 - 0.138) e 2
P5122 etaldoc 782/4 page 4 of 4 june 2005 safety absolute maximum ratings (ratings of components independent of circuit). constructed in accordance with iec 60950-1, en 60950-1 and ul 60950-1, supplementary insulation, 250vrms maximum working voltage, flammability class v-0. short term isolation voltage (1s) dc current storage temperature lead temperature, 10s 2.12kvrms 3.0kvdc 100 a -40oc to +85oc 260oc certification intellectual property rights certified under the iec cb scheme (certificate gb605w) to iec 60950 third edition 1999 sub- clauses 1.5, 1.5.1, 1.5.2, 2.9, 2.9.1, 2.9.2, 2.9.3, 2.9.4, 2.9.5, 2.10, 2. 10.1, 2.10.2, 2.10.3, 2.10.3.1, 2.10.3.2, 2.10.4, 2.10.5, 2.10.5.1, 2.10.5.4, 4.7, 4.7.3, 4.7.3.1, 4.7.3.4, (flammability class v-0) ,5.2, 5.2.1, and 5.2.2 for a maximum working voltage of 250vrms, nominal mains supply voltage not exceeding 300vrms and a maximum operating temperature of +85oc in pollution degree 2 environment, supplementary insulation for a primary circuit. recognized under the component recognition program of underwriters laboratories inc. to us and canadian requirements can/csa c22.2 no. 60950-1-03/ul60950-1, first edition, based on iec 60950-1, first edition, maximum working voltage 250vrms, pollution degree 2, supplementary insulation. ul file number e203175. additionally, profec technologies certifies all transformers as providing voltage isolation of 2.12kvrms, 3kv dc minimum. all shipments are supported by a certificate of conformity to current applicable safety standards. etal, P5122 and p3189 are trade marks of profec technologies ltd. the trade mark etal is registered at the uk trade marks registry. profec technologies ltd. is the owner of the design right under the copyright designs and patents act 1988 and no rights or licences are hereby granted or implied to any third party. P5122 design and construction are protected by patents. usa patent no. 6,690,254. other patents pending. ? 1998 - 2005 profec technologies ltd. reproduction prohibited. etal group oy, kuormatie 14, fin-03101, nummela telephone: +358 (0)20 7500 330 fax: +358 (0)20 7500 333 website: www.etalgroup.com email: etalgroup@egruppen.com fm 25326 iso 9001 e203175
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