etaldoc 710/8 page 1 of 5 april 2005 product data sheet line matching transformer P3800 features applications ? lead-free (pb-free) ? v.32bis and v.22bis modems ? rohs compliant ? fax ? 12.6mm (0.5") seated height ? line matching ? industry standard pinout ? voice ? iec 60950 and ul 60950 certified ? ul recognized component ? environmentally tested to iec 68 ? cert reliability tested ? high thermal stability description P3800 is intended for low-cost, medium-speed data and voice applications. it is a direct substitute for industry standard p1200, being mechanically compatible and having identical signal/distortion and matching characteristics, and suitable for supplementary insulation, 250v working. P3800 uses patented design and construction methods to achieve excellent signal performance and safety isolation to international standards. the part is completely lead-free, compliant with rohs directive 2002/95/ec, and suitable for lead-free and conventional processing. P3800 is certified to iec 60950 and ul 60950. P3800 is a ul recognized component and is supported by an iec cb test certificate. P3800 is a rugged lightweight design that has been subjected to relevant environmental testing according to iec 68 and combined environmental reliability testing (cert) beyond normal operational levels and passed all tests, remaining fully functional patented
P3800 etaldoc 710/8 page 2 of 5 april 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) 450hz 0dbm - -72 -60 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 120 - 148 leakage inductance l 14.5 - 18 mh shunt inductance lp (4) 10mv 200hz 2.8 - - h shunt loss rp (4) 10mv 200hz 5 - - 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. equivalent circuit fi g . 1 ideal 1:1 ? l ? l ? r ? r patented
P3800 etaldoc 710/8 page 3 of 5 april 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 e 2
P3800 etaldoc 710/8 page 4 of 5 april 2005 environmental testing reliability testing to iec 68 tested to clauses of iec 68 and compliant with all functi onal and safety requirements following exposure as follows: test description iec 68 reference test details result robustness of terminations 68-2-21 test ua 1 68-2-21 test ua 2 tensile 5n pull thrust 1n push no impairment no pin detachment or distortion solderability 68-2-20 test ta method 1 solder bath 235oc 2s resistance to soldering heat 68-2-20 test tb method 1a 68-2-20 test tb method 2 solder bath 260oc 10s soldering iron 350oc 5s no impairment finish smooth, bright and even vibration 68-2-6 test fc sweep 10-55-10hz in 1 minute amplitude 1.5mm pk-pk duration 2h per axis, 3 axes no impairment shock 68-2-27 test ea peak acceleration 1000m/s 2 duration of pulse 6ms 3 shocks each direction on 3 axes no impairment cold 68-2-1 test ab -25oc 16h recovery to ambient 1-2h no impairment dry heat 68-2-2 test bb 125oc 16h recovery to ambient 1-2h no impairment damp heat 68-2-3 test ca 40oc 4 days, rh 93% recovery to ambient 1-2h no impairment change of temperature 68-2-14 test na t a ?25oc t b +85oc t 1 30 min 2 min t 2 3 min recovery to ambient 1-2h 5 cycles no impairment combined environmental re liability testing (cert) components step stressed at increasing levels of severity using combined stresses to detect potential weaknesses. results are shown for highest levels of stress tested. compliant with all functional and safety tests following exposure as follows: test description test details duration result storage test thermal cycling -30oc to + 100oc at 11oc/min 6mm pk 2-9hz at 1 octave/min 20m/s 2 9-200hz 20 mins per plane no impairment transportation test thermal cycling -65oc to +80oc random vibration 10-200hz and 200-2000hz at 57m/s 2 rms 2 hours per plane no impairment
P3800 etaldoc 710/8 page 5 of 5 april 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. there are no special installation requirements (beyond attending to usual pcb track separations) since the integral cover provides supplementary insulation from its external faces to internal core and windings. 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 dk-8570) to iec 60950-1-2001, sub-clauses 1.5, 1.5.1, 1.5.2, 1.7.1, 2.9, 2.9.1, 2.9.2, 2.9.3, 2.10, 2.10.1, 2.10.2, 2.10.3, 2. 10.3.1, 2.10.3.3, 2.10.4, 2.10.5, 2.10.5.1, 2.10.5.2, 2.10.5.4, 4.7, 4.7.1 (classv-1), 4.7.3, 4.7.3.1, 4. 7.3.4, 5.2, 5. 2.1, 5.2.2, 6.1.2.1 (finland, norway, sweden national deviations) for a maximum working voltage of 250vrms, nominal mains supply voltage not exceeding 300vrms and a maximum operating temperature of 70oc in pollution degree 2 environments. 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, reinforced 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, p1200, and P3800 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. p3189 design and construction are protected by patents and registered design. uk registered design no. 2077360. us patent no. 6,690,254 french registered design no. 991512. united states registered design 426, 815. mexico registered design 12143. other patents and registered designs 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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