date: apr 19,2000 pre. by: qingli rev:x.0 40 pin smd ethernet 10 base-t quad port transformer p/n:40ST8062A data sheet a.general specifications 1. ieee 802.3 ethernet compatiable, suitable for ?filterless?transceiver chip (level one chip) 2.surface mountable 3.design for multiport repeater and ethernet switching hub application 4.customer designs anailable for specific application 5. isolation 1500vrms b.electrical specifications @ 25c: 1.peak pulse rating: 50 volts 2.dissipation rating: 75 mw. 3.insulation resistance: 10,000 m ohm@ 50 vdc. 4.turn ratio (5%): tx=1ct: 1.41ct; rx=1:1. 5.pri.ocl: tx & rx: 150uh min. 6.cw/w: 18 pf max (tx & rx). 7.leakage inductance: 0.4 uh max (tx & rx). 8.pri.resistance: 0.3 ? max(tx & rx). c.dimensions & schematic & marking (unit mm tolerance +/-0.25):
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