ISDN U-Interface Transformers Manufacturer Name Motorola For both 2B1Q & 4B3T ISDN U-Interface Applications Excellent Longitudinal Balance Meets key parameters of ANSI T1.601-1992 Isolation 2000 VRMS & 3000 VRMS Minimum Surface Mount Versions Available T-13207 T-13209 T-13210 T-13211 T-13212 T-13214 T-13215 T-13219 T-13220 T-13221 T-13222 T-13223 T-13224 T-13225 1.25:1 2.00:1 1.50:1 1.50:1 1.50:1 1.65:1 1.32:1 1.50:1 1.50:1 1.25:1 1.65:1 2.00:1 1.50:1 1.32:1 28.0 27.0 15.0 27.0 27.0 15.5 7.7 15.0 27.0 25.5 15.5 27.0 27.0 7.7 (1-5) (1-5) (4-2) (4-2) (1-5) (1-5) (1-5) (4-2) (1-5) (1-5) (1-5) (1-5) (4-2) (1-5) 12 11.6 16 20 20 6.0 2.4 18 20 13 6.0 12.6 20 2.7 8 6.4 2.5 3.0 3.0 3.5 2.7 3.0 3.0 9.0 3.5 7.4 3.0 3.0 DC Bias (mA) 80 60 60 60 60 60 60 60 60 80 60 60 60 60 Coding Isolation (VRMS) Schem. Style (3) 2B1Q 2B1Q 2B1Q 2B1Q 2B1Q 2B1Q 4B3T 2B1Q 2B1Q 2B1Q 2B1Q 2B1Q 2B1Q 4B3T 2000 2000 2000 2000 2000 2000 2000 3000 3000 3000 3000 3000 3000 3000 A A B B A A A B A A A A B A Longitudinal Balance (2B1Q Coding) 281 Hz to 40 KHz 55 dB min. > 40 KHz -20 dB/decade 1.070 (27.18) REF. .900 (22.86) REF. 10 .150 (3.81) TYP. Bottom View 2 SEC d e v ic e Surge Voltage Capability: Metallic Voltage: 800 V peak, 10/700 µS Longitudinal Voltage: 2400 V peak, 10/560 µS .570 (14.48) MAX. .040 (1.02) TYP. 10 Top View 9 3 8 4 7 5 6 .920 (23.37) MAX. .150 (3.81) TYP. 1 9 2 8 3 7 4 6 5 Terminal Dimensions .020 (.051) X .040 (1.02) Typical. SEC d e v ic e Schematic "B" PRI lin e 1.070 (27.18) REF. .900 (22.86) REF. 1 .100 (2.54) MIN. PRI lin e Primary is Line Side / Secondary is Chip Side 20 dB min. Package Physical Dimensions in inches (mm) .040 (1.02) TYP. T-13221 T-13224 T-13220 T-13222 T-13225 T-13219 Operating Temp. Range -400C to +850C Longitudinal Balance (4B3T Coding) 5 KHz 20 dB min. 20 KHz to 150 KHz 40 dB min. 1 MHz 36 dB min. Return Loss 10 and 25 KHz .920 (23.37) MAX. T-13207 T-13211 T-13212 T-13214 T-13215 T-13210 Schematic "A" DCR (1) DCR (2) max. max. (Ω) (Ω) Line Side Pins 1. Line Side. 2. Device Side 3. OCL Tested @10 kHz / 700 mV, pins 2&4 shorted for Schem. "A"; pins 1&5 shorted for Schem. "B." 3. For all parts unused Pin # 6 can be removed for keying to printed circuit board. Add suffix "-9" .470 (11.94) MAX. Transformer High Isolation P/N P/N T-13209 T-13223 Motorola MC145572 National TP 3410 National TP 3410 Siemens PEB 2091 Siemens PEB 2090/20901 SGS-Thomson SD 5411 Designed for use with leading Transceiver Chips Electrical Specifications at 25OC Turns OCL (1, 3) Part Ratio Pri +6% ( mH ) Number (+3%) I.C. P/N MC145472 .470 (11.94) MAX. 1.19 (30.23) .090 (2.29) TYP. .800 (20.32) 1.10 (27.94) 1.04 (26.42) .150 (3.81) Termination Numbers for Reference Only. .080 (2.03) For Surface Mount Versions of all parts on this page Add suffix "G" to part number: T-13207G With Pin 6 removed: T-13207-9G Specifications subject to change without notice. Rhombus Industries Inc. For other values & Custom Designs, contact factory. 17 .180 (4.57) ISDN-U - 4/99 15801 Chemical Lane, Huntington Beach, CA 92649-1595 Tel: (714) 898-0960 • Fax: (714) 896-0971