UT28521

ISDN UM MODEL NO.: UT28521 Characteristic data: RI 5.0 RII=RIII 1.2 Tu(amb) 0C 60 SPECIFICATION SO-Interface Transformer Schematic diagram: REV. A1 99/05 Electrical Specification at 250C: 1.)LII+III 22mH,(NII+III series),at 10KHz 100mV 2.)Polarity and turns ratio tolerance:  2% 3.)Ck 105pF,(NI to NII  III),at 10KHz 100mV N 4.)LsII+III 4.0uH,(NII+III series, NI shorted),at 100KHz 100mV 5.)HI-pot test: Up=1.5KVrms,2s(NI to NII+NIII) Up=0.5KVrms,2s(NII to NIII) Dimension: NOTE: Specifications are subject to change without prior notice. UNIT: mm Tolerances:  0.2mm E10-013-C UNIVERSAL MICROELECTRONICS CO.,LTD. TEL:886-4-23590096 FAX:886-4-23590129 http://www.umec-web.com E-mail:business@umec.com.tw 3,27TH RD.,TAICHUNG INDUSTRIAL PARK, TAICHUNG,TAIWAN,R.O.C