T1/CEPT Line Interface Transformers ELECTRONICS INC. • Optimizied for Leading Transceiver I.C.’s • • Reinforced Insulation per UL1459 & UL1950, EN41003 & EN60950 • • 3000 Vrms Isolation • • See Selection Guide for I.C. Cross Reference • • Standard Operating Temperature : 0°C to 70°C • • For Extended Operating Temperature : -40°C to +85°C • (add suffix “E” to end of PCA Part Number: Example; EPR1546E) Electrical Parameters @ 25° C Part Number Turns Ratio OCL (mH Min.) Cw/w (pF Max.) LI (µH Max.) Pri. DCR (Ω Max.) Sec. DCR (Ω Max.) Primary Pins Schematic EPR1541 EPR1542 EPR1543 EPR1544 EPR1545 EPR1546 EPR1547 EPR1548 EPR1549 EPR1550 EPR1551 EPR1552 1.27SC:1 1CS:1 1:1.36CT 1CT:2CT 1:1 1CT:2CT 1CT:3CT:1 1:1.08/1.36 1:1.4CT 1:1/1.26 1:1.58/2 1CT:1.41CT .800 .800 1.20 1.20 1.20 1.20 .600 1.50 1.50 1.50 1.50 1.20 15 15 35 20 20 15 30 20 30 35 20 20 .70 .70 .60 .30-.55 .50 .80 .80 .60 1.00 .60 .70 .80 .50 .50 .70 .50 .50 .70 .70 .70 .70 .70 .70 .60 .35 .45 .90 .90 .50 1.10 1.70 .90 .90 1.10 1.20 .80 1-5 1-5 10-6 1-5 1-5 1-5 1-3 10-6 10-6 10-6 10-6 10-6 C C D A B A E D D D D A Schematic A B C 1 10 1 10 1 3 8 5 6 2 D E 1 1 10 10 3 2 10 3 8 4 6 6 5 4 6 6 5 5 5 A Package Pin 1 ID PCA EPR15XX D.C. C B Dimensions E Dim. Min. D A B C D E F G H K .540 .540 .380 --.025 --.395 .022 .115 K G H F PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 CSR1541 - CSR1552 Rev. - (Inches) Max. Nom. .560 .560 .400 --.035 --.405 .028 .125 .550 .550 .390 .400 .030 .100 .400 .025 .120 6/21/00 Product performance is limited to specified parameters. Data is subject to change without prior notice. Min. (millimeters) Max. Nom. 13.72 13.72 9.65 --.635 --10.03 .559 2.92 14.22 14.22 10.16 --.889 --10.29 .711 3.18 13.97 13.97 9.91 10.16 .762 2.54 10.16 .635 3.05 TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com