Document 414
For Broadcom BCM6348
ADSL2 Transformer 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.
Tape and reel 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 Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf
Line side
Leakage
Longitudinal
balance
min (dB)
Turns ratio inductance2 inductance3 Capacitance4
THD
max (dB)
DCR max (Ohms)
Part
number1
line:chip
±±5 (ꢀH)
max (ꢀH)
max (pF)
chip side
line side
B0727-BL_
2:1
409.5
6.5
65.0
0.645 (1-4) 0.284 (10-7)
0.645 (2-5) 0.371 ((9-6)
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).
Dot above pin1
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.
0.500
12,70
max
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.
0.004/0,10
0.039
1,00
0.699
max
17,75
0.050
1,27
0.512
13,00
10
1
0.061
1,55
0.590
14,99
0.028
0,70
10
1
0.098
2,50
4
7
9
0.098
2,50
Line
side
Chip
side
0.530
13,46
Recommended
Land Pattern
max
2
5
1
6
5
6
inches
mm
Dimensions are in
Document 414 Revised 10/20/08
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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