Features
Low profile (6.0mm) and light weight (4.0 g), Talema common mode
choke modules provide excellent EMI reduction in Quad Port T1/E1
applications
High density board placement with modular design
SMD package facilitates pick and place compatability while
ensuring 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
Test voltage between windings: 500 Vrms
Operating Temperature Range: 0 to +70C
Storage Temperature: -25C to +105C
Test Frequency: Inductance measured @ 100kHz/20mVrms
THE TALEMA GROUP World Wide Toroidal Specialists
COJ Series - Common Mode Octal Chokes for Quad Port T1/E1
Application
The Talema 16 data line common mode choke module has been designed for T1/E1 applications and provides excellent EMI suppression for data and signal line
filtering
Standard packing in either anti-static tubes or in tape and reel
Weight: 4 grams
CMO SMD Module Package
Suggested Pad layout
0.030
(0,77)
19 x 0.050
(19 x 1,27)
0.950
(24,13)
0.661
(16,80)
0.480
(12,20)
0.091
(2,30)
Schematic
(12-02) Chokes\COJ-16-470
1
40
2
39
3
38
5
36
6
35
7
34
8
33
10
31
11
30
12
29
13
28
15
26
16
25
17
24
18
23
20
21
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Sales & Marketing, Design and Manufacturing Facilities
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.
Jablonskho 7
326 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
0 - 8
0.236
(6.00)
0.189
(4.80)
1.102
(28.00)
0.638
(16.20)
0.076
(1.93)
0.575
(14.60)
19 x 0.05 (1,27)
0.020
(0.50)
TALEMA IN
WK/YR
Part Number
Dimensions: Inches (Millimeters)
Tolerance: 0.010 (0.25) unless specified otherwise
Surface coplanarity will be <0.004 (0.10)
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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