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10/100BASE-T LAN MAGNETICS
Dual Transformer Modules
* Dual, two-port designs provide excellent EMI and common mode noise suppression Optimized for board layouts utilizing single row and dual stack RJ-45 connectors Operating temperature 0 to 70 C * Meets all IEEE 802.3 standards including 350H with 8mA bias Low profile, surface mount packaging rated to 225 C peak IR reflow temperature Minimum interwinding breakdown voltage of 1500 Vrms
LM00405
*
*
*
*
ELECTRICAL SPECIFICATIONS AT 25 C
Insertion Loss dB max Part Number 100kHz to 100MHz 100kHz to 30MHz 30MHz to 60MHz 60MHz to 80MHz -10 Common to Differential Mode Rejection dB min Common to Common Mode Rejection dB min
Return Loss dB min
Crosstalk dB min
100kHz to 100MHz
1MHz
30MHz
60MHz
100MHz
S558-5999-65
-1.0
-20
-18
-40
-30
-65
-55
-45
-35
S558-5999-75
-1.0
-20
-18
-10
-40
-30
-65
-55
-45
-35
S558-5999-79
-1.0
-20
-18
-10
-40
-30
-65
-55
-45
-35
S558-5999-83
-1.0
-20
-18
-10
-40
-30
-65
-55
-45
-35
S558-5999-A4
-1.0
-20
-18
-10
-40
-30
-65
-55
-45
-35
S558-5999-A6
-1.0
-20
-18
-10
-40
-30
-65
-55
-45
-35
S558-5999-A8
-1.0
-20
-18
-10
-40
-30
-65
-55
-45
-35
S558-5999-A9
-1.0
-20
-18
-10
-40
-30
-65
-55
-45
-35
Turns Ratio Part Number TX S558-5999-65 2CT : 1 : 2CT RX 1CT : 1CT
Part Number TX S558-5999-A4
Turns Ratio
RX 1CT : 1CT
1CT : 1
S558-5999-75
1CT : 1
1CT : 1CT
S558-5999-A6
1CT : 1
1CT : 1CT
S558-5999-79
1CT : 1
1CT : 1CT
S558-5999-A8
1CT : 1CT
1CT : 1CT
S558-5999-83
1.23CT : 1CT
1CT : 1CT
S558-5999-A9
1CT : 1CT
1CT : 1CT
(c)2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com L4-13
10/100BASE-T LAN MAGNETICS
LM00405
Dual Transformer Modules
S558-5999-65
1 2 TX1 3 4 5 7 1CT : 1CT 2CT : 1 : 2CT 39
SCHEMATICS
S558-5999-75
2 RX1 3 4 6 TX1 7 8 12 1CT : 1
1CT : 1CT
39 38 37 35 34 33
40 38 33 34 32 2CT : 1 : 2CT 28 29 27 1CT : 1CT 22 23 21
RX1 8 9 12 13 TX2 14 15 16 18 RX2 19 20
1CT : 1CT
29 28 27
RX2 13 14 16 TX2 17 18 1CT : 1
25 24 23
S558-5999-79
S558-5999-83
2 TX1 3 4 6 RX1 7 8 12 TX2 13 14 16 RX2 17 18
1CT : 1
39 38 37 1CT : 1CT 35 34 33
1.23CT : 1CT TX1 2 3 4 RX1 6 7 8 1CT : 1CT
40 39 37 35 33 32 30 29 27
1CT : 1
29 28 27 1CT : 1CT 25 24 23
12 TX2 13 14 16 RX2 17 18
1.23CT : 1CT
1CT : 1CT
25 23 22
(c)2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com L4-14
10/100BASE-T LAN MAGNETICS
Dual Transformer Modules
SCHEMATICS
S558-5999-A4
1CT : 1CT
LM00405
S558-5999-A6
RD1+ RCT1 RD1TD1+
2 3 4 6 1CT : 1
39 RX138 RCMT1 37 RX1+ 35 TX134 TCMT1 33 TX1+
RD1+
2
1CT : 1CT
39 TX138 TCMT1 37 TX1+
RCT1 3 RD1TD1+ 4 6 1CT : 1
35 RX134 RCMT1 33 RX1+
TCT1 7 TD18 1CT : 1
TCT1 7 TD18 1CT : 1
TD2- 12 TCT2 13 TD2+ 14 RD2- 16 RCT2 17 RD2+ 18
29 RX228 RCMT2 27 RX2+ 1CT : 1CT 25 TX224 TCMT2 23 TX2+
TD2- 12 TCT2 13 TD2+ 14 RD2- 16 RCT2 17 RD2+ 18
29 TX228 TCMT2 27 TX2+ 1CT : 1CT 25 RX224 RCMT2 23 RX2+
S558-5999-A8
S558-5999-A9
1CT : 1CT
RD1+ 2 RCT1 3 RD1- 4 TD1+ 6 TCT1 7 TD1- 8 TD2- 12 TCT2 13 TD2+ 14 RD2- 16 RCT2 17 RD2+ 18 1CT : 1CT 1CT : 1CT
1CT : 1CT
39 RX138 RCMT1 37 RX1+ 35 TX134 TCMT1 33 TX1+ 29 RX228 RCMT2 27 RX2+
RD1+ 2 RCT1 3 RD1- 4 TD1+ 6 TCT1 7 TD1- 8 TD2- 12 TCT2 13 TD2+ 14 RD2- 16 RCT2 17 RD2+ 18 1CT : 1CT 1CT : 1CT
39 TX138 TCMT1 37 TX1+ 35 RX134 RCMT1 33 RX1+ 29 TX228 TCMT2 27 TX2+
1CT : 1CT
1CT : 1CT
25 TX224 TCMT2 23 TX2+
25 RX224 RCMT2 23 RX2+
(c)2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com L4-15
10/100BASE-T LAN MAGNETICS
LM00405
Dual Transformer Modules
MECHANICAL
S558-5999-65 S558-5999-75 S558-5999-79 S558-5999-83 S558-5999-A4 S558-5999-A6 S558-5999-A8 S558-5999-A9
0.070 [1.78] ref
1.100 [27.94] max
0.050 [1.27]
0.480 [12.19]
0.645 [16.38]
0.070 [1.78] R 0.015 [0.39] R 0.005 [0.13]
0.004 [0.10]
0.050 [1.27]
0.020 0.002 [0.51 0.05] 0.225 [5.72] max
0.030 [0.77] Suggested PCB Pad Layout
0.212 [5.38] ref 0.950 [24.13]
0.035 [0.89]
0.600 [15.24]
0.005 [0.13] min
0- 5
Dimensions are in inches [millimeters]. Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
(c)2001 Bel Fuse Inc. Specifications subject to change without notice. 09.01
CORPORATE
Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
FAR EAST
Bel Fuse Ltd. 8F / 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com
EUROPE
Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com
L4-16

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