T1/E1 Transformer ELECTRONICS INC. EPR1421G • Miniature Line Transformer • Designed for use with Primary Rate ISDN Network • Isolation : 1500 Vrms (for 1 minute) Electrical Parameters @ 25° C @ 10 KHz, 0.1 Vrms Longitudinal Balance (dB Min.) Return Loss (dB Min.) Line Side OCL (µH Min.) 51KHz100 KHz 100 KHz3072 KHz 50 KHz1544 KHz -40 3.5 -15 -20 Pins 1-8 Pins 1-8 Pins 1-8 Impedance (Ω Typ.) DCR (Ω Max.) 100 120 100 75 0.65 0.6 0.55 0.6 Pins 1-8 Pins 2-3 Pins 6-3 Pins 4-5 Pins 1-8 Pins 2-3 Pins 6-3 Pins 4-5 Schematic 2 6 1 3 4 8 5 Package Marking: PCA EPR1421G D.C. Pin 1 I.D. .098 (2.50) .465 (11.81) .023 (.584) .420 (10.67) .598 (15.20) .098 (2.50) .039 (1.00) .453 (11.50) .098 (2.50) .420 (10.67) 0°-8° .295 (7.50) .041 (1.05) .575 (14.60) Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 Product performance is limited to specified parameters. Data is subject to change without prior notice. CSR1421G Rev. 1 4/4/05 JDG TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com