ISDN S-Interface Applications Transformers - EP Style Designed to meet pulse waveform template of CCITT I.430 when using proper chip pair. Electrical Specifications 1,2,3 at 25OC Part Number T-13700 T-13701 T-13702 T-13703 T-13704 T-13705 T-13706 T-13707 (1) Turns Ratio (+5%) OCL min. ( mH ) 1CT:2CT 1CT:1CT 1CT:2.5CT 1CT:1.8CT 1CT:2CT 1CT:1CT 1CT:1CT 2:1CT 30 30 30 30 30 30 22 22 PRI-SEC CW/W max. ( pF ) Leakage Ind. max. ( µH ) 50 50 50 50 50 50 95 100 Secondary Primary DCR max. DCR max. (Ω) (Ω) 13 15 13 13 10 10 5 15 1.1 1.1 1.1 1.2 1.0 2.2 2.5 5.5 2.6 1.3 4.2 2.6 2.0 2.2 2.5 5.0 Style & Schem. Primary Pins EP13 - A EP13 - A EP13 - A EP13 - A EP13 - A EP13 - A EP10 - B EP7 - C 1-5 1-5 1-5 1-5 1-5 1-5 1-3 1-3 1. Hi-pot (Pri. to Sec.) 2000 VRMS except T-13707. Isolation is 1000 VRMS 2. ET-Product of 10 V-µsec min. 3. OCL Measured at Primary @10KHz & 700mV Schematic "A" PRI .375 (9.53) MAX. .465 (11.81) MAX. SEC PIN POSITION GRID 0.098 (2.5) CLIP SET TERMINATIONS BOBBIN TERMINATIONS .394 (10.00) MAX. .110 (2.79) MIN. .080 (2.03) .098 .024 (2.49) (0.61) 6 5 2 PRI Schematic "C" PRI SEC 3 .039 (0.99) .480 (12.19) MAX. .450 (11.43) MAX. .550 (13.97) MAX. .536 (13.61) MAX. .525 (13.34) MAX. .460 (11.68) MAX. .210 (5.33) TYP. .210 (5.33) TYP. .100 (2.54) TYP. .300 (7.62) TYP. .100 (2.54) TYP. 7 6 5 Bottom View 1 2 3 .400 (10.16) TYP. Pin Diameter is 0.025 (0.64) Pin Diameter is 0.025 (0.64) 10 8 SEC EP7 Package Shown with Clips. Available with or without clips. 4 Bottom View 1 Schematic "B" 4 EP10 Package Shown without Clips. Available with or without clips. Specifications subject to change without notice. Rhombus Industries Inc. 9 8 7 6 Bottom View 1 2 3 4 For other values & Custom Designs, contact factory. 16 5 EP13 Package Shown without Clips. Available with or without clips. ISDN-EP - 2/98 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Tel: (714) 898-0960 • Fax: (714) 896-0971