Document 414 ADSL2 Transformer For Broadcom BCM6348 Router Chip • Designed for use with the Broadcom BCM6348 router chip • Low leakage inductance and 1875 V interwinding isolation • Evaluated and approved by UL to meet 60950 under a Supplementary Insulation System with a working voltage of 250 Vrms, 353.5 V peak. Core material Ferrite Terminations RoHS tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 6.2 g Ambient temperature –40°C to +85°C Storage temperature Component: –40°C to +85°C. Packaging: –40°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Mean Time Between Failures (MTBF) 26,315,789 hours Packaging 175 per 13″ reel Plastic tape: 32 mm wide, 0.42 mm thick, 28 mm pocket spacing, 12.9 mm pocket depth PCB washing Only pure water or alcohol recommended Part number1 B0727-BL_ Line side Leakage Turns ratio inductance2 inductance3 Capacitance4 line : chip ±5% (µH) max (µH) max (pF) 2 :1 409.5 6.5 65.0 DCR max (Ohms) chip side line side 0.645 (1-4) 0.645 (2-5) 0.284 (10-7) 0.371 ((9-6) Longitudinal balance min (dB) THD max (dB) 50.0 (1.1 MHz) –80 1. When ordering, please specify termination and packaging coded: B0727-BLD Termination: L = RoHS tin-silver over tin over nickel over phos bronze. Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or S = non-RoHS tin-lead (63/37). Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape (175 parts per full reel). B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 2. Inductance measured at 10 kHz, 0.1 Vrms, 0 Adc with windings connected in series. 3. Leakage inductance measured at 100 kHz, 0.1 Vrms, 0 Adc from pins 1 to 5 with pins 4 and 2 connected and all chip side pins shorted. 4. Capacitance measured at 100 kHz, 0.1 Vrms, 0 Adc from chip side to line side. 5. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 1 10 0.061 1,55 0.590 14,99 Dot above pin1 0.500 max 12,70 0.004 /0,10 0.039 1,00 0.699 max 17,75 0.050 1,27 0.512 13,00 Line 4 side 2 7 Chip 9 side Recommended Land Pattern 0.098 2,50 6 5 6 inches Dimensions are in mm Specifications subject to change without notice. Please check our website for latest information. © Coilcraft, Inc. 2008 0.098 2,50 0.530 max 13,46 1 5 0.028 10 0,70 1 Document 414 Revised 10/20/08