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HDSL & MDSL MAGNETICS  
For Conexant Bt8960 and Bt8970  
TM9955  
Optimized for use with Conexant’s Bt8960 and Bt8970  
transceiver ICs  
Designed for HDSL and MDSL environments  
supporting data rates from 400 Kb/s to 1168 Kb/s  
Minimum interwinding breakdown voltage of 1500 Vrms  
Designed to support modem, router and switch  
applications  
ELECTRICAL SPECIFICATIONS at 25° C  
Turns Ratio Inductance  
DCR  
max  
Harmonic  
Distortion  
dB typ  
± 3%  
mH ±10%  
Leakage  
Inductance  
µH max  
Return Loss  
dB min  
Part Number  
Chip : Line  
1CT : 2CT  
1CT : 2CT  
1CT : 2CT  
1CT : 2CT  
1CT : 2CT  
Line Side  
Chip Side  
Line Side  
1.85Vrms  
40kHz - 300kHz  
16.5  
40kHz  
70  
0560-6600-01  
0560-6600-02  
0560-6600-03  
0560-6600-04  
0560-6600-21  
2
3
4
4
2
2
4.4  
4.4  
4.4  
5
40kHz - 200kHz  
20  
26kHz  
70  
18kHz - 132kHz  
20  
18kHz  
70  
4.5  
5.8  
3
8
2
13kHz - 100kHz  
16.5  
13kHz  
70  
10  
5
2.4  
2
40kHz - 200kHz  
20  
26kHz  
70  
5
SCHEMATICS  
0560-6600-01  
0560-6600-02  
0560-6600-03  
0560-6600-04  
0560-6600-21  
2
9
9
1
Line  
Side  
Line  
Side  
Chip  
Side  
4
8
Chip  
Side  
3
2
5
7
6
7
4
©1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99  
Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com  
T510  
HDSL & MDSL MAGNETICS  
For Conexant Bt8960 and Bt8970  
TM9955  
MECHANICALS  
tranparent  
Mylar  
insulator  
.800 [20.32]  
±.015 [0.04]  
0560-6600-01  
0560-6600-02  
0560-6600-03  
0560-6600-04  
.100 [2.54]  
min  
.470 [11.94]  
max  
.150 [3.81]  
±.010 [0.03]  
reference notch  
Pin 1  
1
10  
9
.920 [23.37]  
2
3
4
max  
.600 [15.24]  
±.015 [0.04]  
8
7
6
5
.900 [22.86]  
ref  
Notes:  
0560-6600-21  
Coil form is UL 94 V0 rated  
Pins are tin copper alloy  
1.070 [27.18]  
max  
0.547  
[13.90]  
max  
0.535  
[13.60]  
max  
Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted.  
0.526  
[13.36]  
max  
0.185 [4.70] max  
0.394  
[10.01]  
0.024 [0.61] dia  
0.098  
[2.50]  
typ  
10  
6
1
5
Notes:  
Coil form is UL 94 V0 rated  
Pins are tin copper alloy  
Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted.  
©1999 Bel Fuse Inc. Specifications subject to change without notice. 06.99  
CORPORATE  
FAR EAST  
EUROPE  
Bel Fuse Inc.  
Bel Fuse Ltd.  
Bel Fuse Europe Ltd.  
198 Van Vorst Street  
Jersey City, NJ 07302  
Tel 201-432-0463  
Fax 201-432-9542  
www.belfuse.com  
8F / 8 Luk Hop Street  
San Po Kong  
Kowloon, Hong Kong  
Tel 852-2328-5515  
Fax 852-2352-3706  
www.belfuse.com  
PrestonTechnology Management Centre  
Marsh Lane, Suite F23, Preston  
Lancashire, PR1 8UD, U.K.  
Tel 44-1772-556601  
Fax 44-1772-888366  
www.belfuse.com  
T511