Token Ring Isolation Transformers ELECTRONICS INC. EP9842-X & EP9842-X-LF • Designed for IBM and Token Ring for 4 MHz Applications • Hipot : 500 Vrms (in compliance with LAN’s Safety Requirements) • Available in Single and Dual Low Profile Thru-Hole Packages • Add “-LF” after part number for Lead Free • Storage Temperature : -40°C to +125°C • Operating Temperature : 0°C to +70°C • IEEE 802.5 Compatible Electrical Parameters @ 25° C PCA Part Number OCL (mH Ref.) @ 100 KHz, 100 mV Interwinding Capacitance (pF Max.) Leakage Inductance (µH Max.) Insertion Loss (dB Max.) @ 10 MHz Return Loss (dB Min.) @ 5 MHz CMR (dB Min.) @ 1.0 MHz EP9842-1(-LF) [Single] 1.0 15 0.4 0.5 20 -60 0.55 0.85 1.0 15 0.4 0.5 20 -60 0.55 0.85 EP9842-2(-LF) [Dual] DCR (Ω Max.) Pri. Sec. • Hipot : 500 Vrms Between Pri. and Sec. Windings & also from Coil to Coil in Dual Package • • Turns Ratio : 1:1:2:2 ± 5% • Packages .500 Max. (12.70) Single 8 Pin Package Dual 16 Pin Package 1.00 Max. (25.40) .500 Max. (12.70) Marking : PCA EP9842-1(-LF) D.C. .370 Max. (9.40) .100 (2.54) 16 1 .015 (.381) 9 .385 Max. 8 (9.78) .385 Max. (9.78) .120 ± .020 (.305 ± .508) .300 (7.62) #24 TC PCA EP9842-2(-LF) D.C. .100 (2.54) .015 (.381) #24 TC .120 ± .020 (.305 ± .508) .300 (7.62) Schematics Single 8 Pin Schematic Dual 16 Pin Schematic 1 5 1 16 2 6 2 15 Notes : 3 7 3 14 4 8 4 5 13 EP9842-X EP9842-X-LF 1. Lead Finish SnPb Hot Tin Dip (Sn) 2. Peak Temperature Rating 260°C 3. Moisture Sensitive Levels MSL = 1 (Unlimited, ≤30°C/60%RH) (Unlimited, ≤30°C/60%RH) 2.56 grams (-1) 2.56 grams (-1) (Tube for -1) 41 pieces/tube 41 pieces/tube (Tube for -2) 24 pieces/tube 24 pieces/tube 12 4. Weight 6 11 7 10 8 9 5. Packaging Information 260°C MSL = 1 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. CS9842-X & -LF Rev. 1 8/20/07 RR TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com