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Document 394 -1
VDSL Transformers ForIkanos
SmartLeap
This product is not RoHS-compliant. Contact Coilcraft
for current status or possible alternatives.
These surface mount transformers are designed specifi-
cally for use with the Ikanos SmartLeap chipset series for
high-speed telecom applications.
They are available in 6-pin and 8-pin versions for both ANSI
and ETSI standards. They all feature 60 dB minimum lon-
gitudinal balance, 75 dB maximum harmonic distortion
and 1500 V winding-to-winding isolation.
Coilcraft can also custom engineer transformers to meet
your specific requirements. For free evaluation samples,
contact Coilcraft or visit www.coilcraft.com.
Part NumberIn ductance1 DCR max (Ohms) inLdeuacktaangcee 2 Truartnios Capacit ance3 capSactriataynce4
number Standard of pins ±10% (µH) pri     sec
max (µH) line : chip max (pF)
max (pF)
B0233-A
C0971-A
B0709-B
B0749-B
ANSI
ANSI
ETSI
ETSI
6
8
6
8
200
1.00
0.184
1.00
200
0.913
0.154
0.70
200
0.913
0.113
0.70
200
0.913
0.113
0.70
3 : 1 10.0
3 : 1 25.0
7 : 2 25.0
7 : 2 25.0
25.0
25.0
15.0
15.0
1. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc.
2. Leakage inductance tested across the primary with the secondary shorted.
3. Capacitance tested between windings with 0.1 Vrms applied at 80 KHz.
4. Stray capacitance tested across the primary with 0.1 Vrms applied at 2.5 MHz.
5. Operating temperature range 40°C to +85°C.
6. Electrical specifications at 25°C
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Schematics
B0233-A, B0709-B
61
Line Chip
side side
43
C0971-A, B0749-B
27
Line Chip
side side
36
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
Document 394-1  Revised 04/25/16
© Coilcraft Inc. 2016
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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VDSL Transformers for Ikanos SmartLeap
B0749-B, C0971-A
B0233-A, B0709-B
4
0.394
10,00
max
1
0.360
9,14
max
0.028
0,71
5
0.098
8 2,49
0.550
13,97
max
0.400
10,16
max
0.031
0,80
0.118
3,0
Document 394-2
0.415
10,54
max
0.350
8,89
max
0.291
7,4
0.004 / 0.10
0.071
1,80
0.283
7,20
0.004 / 0.10
Pinouts
B0233-A
16
0.063
1,60
0.244
6,2
0.067
1,70
0.098
2,49
Recommended
Land Pattern
0.11 0.236
2,80 6,00
0.118
3,0
0.071
1,80
Recommended
Land Pattern
3
B0709-B
3
1
Dimensions are in
inches
mm
Packaging  300 per 13reel  Plastic tape: 32 mm wide,
0.42 mm thick, 32 mm pocket spacing, 10.7 mm pocket depth
Packaging  450 per 13reel  Plastic tape: 24 mm wide,
0.45 mm thick, 16 mm pocket spacing, 9.0 mm pocket depth
4
4
6
Core material Ferrite
Terminations  Non-RoHS tin-lead over nickel over phos bronze.
Weight  1.8 – 2.0 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)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)  38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
PCB washing  Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf
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
Document 394-2  Revised 04/25/16
© Coilcraft Inc. 2016
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.