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B0727-BL Datasheet, PDF (1/1 Pages) Coilcraft lnc. – ADSL2 Transformer
Document 414
ADSL2 Transformer ForBroadcomBCM6348
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_
Turns ratio
line : chip
2:1
Line side
inductance2
±5% (µH)
409.5
Leakage
inductance3
max (µH)
6.5
Capacitance4
DCR max (Ohms)
max (pF) chip side line side
65.0
0.645 (1-4) 0.284 (10-7)
0.645 (2-5) 0.371 ((9-6)
Longitudinal
balance
min (dB)
50.0 (1.1 MHz)
THD
max (dB)
–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.
0.500
12,70
max
0.039
1,00
1
Line 4
side 2
5
10
7 Chip
9 side
6
0.061
1,55
0.590
14,99
0.050
1,27
Recommended
Land Pattern
1
Dimensions are in
inches
mm
0.098
2,50
1
0.530 max
13,46
5
Dot above pin1
01.76,9795max
0.512
13,00
0.004 /0,10
0.028
10 0,70
0.098
2,50
6
Specifications subject to change without notice.
Please check our website for latest information.
Document 414 Revised 10/20/08
© Coilcraft, Inc. 2008