Features
Low profile (5.8mm) and light weight (4.0 g) 10/100Base-T Quad Port
isolation transformer modules designed to support four single or doouble
stacked RJ-45 connectors
SMD packages facilitate pick and place compatability and speed of placement
Modules meet requirements of IEEE 802.3u and ANSI X3.263
Consistent and reliable coplanarity
Excellent quality at extremely competitive price due to high volume
production
Manufactured in ISO-9001 approved Talema facility
Electrical Specifications
Ratings@ 25C ambient
Inductance: 350H minimum @ 100kHz, 100mV, 8mA
Leakage Inductance: 0.4H @ 1MHz
Minimum Isolation Voltage: 1500 Vrms
THE TALEMA GROUP World Wide Toroidal Specialists
Quad Port SMD 10/100Base-T Isolation Transformer Modules
Applications
Talema 10/100BaseT Quad transformer modules contain transmit and receive isolation transformers to maintain consistant wave shape and suppression of common
mode noise while providing equipment isolation per IEEE 802.3. High impedance common mode quad chokes for additional EMI suppression have been added on
some models as required for FCC and CISPR 22 Class B certification.
Quality and consistency is guaranteed through 100% testing of the specified parameters for primary inductance, leakage inductance, turns ratio, DC resistance and
interwinding capacitance.This ensures that the return loss and pulse wave shape requirements can be fully maintained. Additionally, all parts are tested for 1500V
minimum isolation.
Operating Temperature: 0 to +70C
Storage Temperature: -25C to +105C
Standard packing: Tape and reel
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K
Talema Electronic 101 West 10th Street Rolla, MO (573) 364-2422 Fax: (573) 364-5390
www.talema.com Email: sales@talema.com
Dimensions & Schematics Quad Port 10/100Base-T Transformer Modules
Schematics
THE TALEMA GROUP Magnetic Components for ISDN/LAN Data Communications
Dimensions
D
imensions: Inches (Millimeters)
Tolerance: 0.010 (0.25) unless specified otherwise
Surface coplanarity will be <0.004 (0.10)
Suggested Pad Layout
0 - 8
0.950
(24,13)
0.030
(0,77)
0.091
(2,30)
19 x 0.050
(19 x 1,27)
0.480
(12,20)
0.661
(16,80)
1.102
(28.00)
0.638
(16.20)
0.076
(1.93)
0.575
(14.60)
19 x 0.05
(1,27)
TALEMA IN
WK/YR
Part Number
0.236
(6.00)
0.189
(4.80)
0.020 x 0.012
(0.50 x 0.30)
A
TX RX TX RX TX RX TX RX
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
B
RX TX RX TX RX TX RX TX
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
C
TX RX TX RX TX RX TX RX
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
D
RX TX TX RX RX TX TX RX
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
E
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
TX RX TX RX TX RX TX RX
F
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
TX RX TX RX TX RX TX RX
Schematics
Schematics SMD Quad Port 10/100Base-T Isolation Transformer Modules
Sales & Marketing, Design and Manufacturing Facilities
Europe - http://www.talema-nuvotem.com
Ireland
NUVOTEM TEO.
Crolly
Co. Donegal
Tel: Int. + 353 74 - 954 8666
Fax: Int. + 353 74 - 954 8139
Email: info@nuvotem.com
Germany
TALEMA ELEKTRONIK GMBH
Riesstr. 8, Postfach 2523
82110 Germering
Tel: Int. + 49 89 - 841 00 - 0
Fax: Int. + 49 89 - 841 00 25
Email: info@talema.isar.de
Eastern Europe &
Czech Republic
NT MAGNETICS s.r.o.
Chebsk 27
322 00 Plze
Tel: Int. + 420 37 - 744 9303
Fax: Int. + 420 37 - 744 3697
Email: talema@talema.cz
India
TALEMA ELECTRONIC PVT. LTD.
Opposite the SIDCO Industrial Estate
Gins Towers
4/5S.H/1, Omalur Main Road
Salem - 636 004, Tamil Nadu
Tel: Int. + 91 427 - 244 1325
Fax: Int. + 91 427 - 243 0034
E-mail: talema@talemaindia.com
RX TX TX RX RX TX TX RX
G
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
J
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
RX TX RX TX RX TX RX TX
H
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
RX TX TX RX RX TX TX RX
RX TX TX RX RX TX TX RX
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
K
Talema Electronic 101 West 10th Street Rolla, MO (573) 364-2422 Fax: (573) 364-5390
www.talema.com Email: sales@talema.com
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