obsolescence notice this product is obsolete. this information is available for your convenience only. for more information on zarlink?s obsolete products and replacement product lists, please visit http://products.zarlink.com/obsolete_products/
1 features 2 x 5.5 ohm high power, high voltage, thick ?m protection resistors 2 replaceable 2ag fuses in surface-mounted fuse clips applications protection circuit for the mh89625c ops slic protection circuit for analog line interfaces, power supplies, etc. description the MH80625C hybrid sip provides a protection circuit consisting of two 2ag size fuses in surface- mounted fuse clips and two high voltage, high power resistors. the sil hybrid, together with an external solid state protector, provides full secondary protection for the mh89625c off-premise slic, allowing conformance to the requirements of ccitt k.20. f1 f2 r1 r2 tin rin tout rout ds issue 2 april 1995 ordering information MH80625C 10 pin sil package 0 c to 70 c figure 1 - functional block diagram MH80625C protection sip preliminary information
2 MH80625C preliminary information figure 2 - pin connections pin description pin # name description 1ic internal connection. 2nc no connection. 3 rin ring input: connects to ring conductor of the subscriber loop. 4nc no connection. 5 tout tip output: connects to tip conductor of the slic. 6 rout ring output: connects to ring conductor of the slic. 7nc no connection . 8 tin tip input: connects to tip conductor of the subscriber loop. 9nc no connection. 10 ic internal connection. 1 2 3 4 5 7 8 9 10 6 ic nc rin nc tout rout nc tin nc ic
3 preliminary information MH80625C electrical characteristics 0?c to 70 ? c * typical ?ures are at 25?c and are for design aid only. note 1: refer to ccitt k.20 speci?ation for details of tests . figure 3 - application circuit - secondary protection characteristics symbol min typ* max units test conditions 1 resistance - absolute r1 4.5 5.5 6 ? 2 resistance - absolute r2 4.5 5.5 6 ? 3 resistance - match 1 % match between r1 & r2 4 fuse f1 0.25 amps littlefuse 2ag, 250vac p/n 229.250 slow blow 5 fuse f2 0.25 amps littlefuse 2ag, 250vac p/n 229.250 slow blow reference speci?ation test description performance comments 1 ccitt k.20 lightning surge simulation 1kv 10 x 700 sec no damage no arcing, fuse intact see note 1 2 ccitt k.20 power induction 300 vrms 200 msec no damage no arcing, fuse intact see note 1 3 ccitt k.20 power cross 220 vrms 15 min no damage no arcing, fuse blows see note 1 tip ring rin tin tout rout f1 f2 r1 r2 MH80625C ring relay tisp 3082 tip ring rf2 rf1 mh89625c p6ke39c protection primary mdf protection secondary 8 3 5 6 1 2 7 6 90 vrms 25hz -v bat
4 MH80625C preliminary information figure 4 - mechanical data 1.0 + 0.020 (25.4 + 0.5) 0.7 + 0.020 (17.8 + 0.5) 0.05 + 0.01 (1.3 + 0.5) *** 0.05 + 0.02 (1.225 + 0.05) 0.020 + 0.005 (0.51 + 0.13) 0.100 + 0.010 (2.54 + 0.26) 0.18 + 0.02 (4.6 + 0.5) fuse area fuse area 12345 6 0.34 max 0.01 min (0.25) 1 10 notes: 1) not to scale 2) dimensions in inches). 3) (dimensions in millimetres). *dimensions to centre of pin & tolerance non accumulative.
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