ISDN - S
O
Miniature Interface Transformer
Features
• designed for optimum compatability with all established
interface IC’s
• excellent and consistent balance between windings
• miniature surface mount package
• complies fully with CCITT.I.430 recommendations and
corresponding national standards for S-Interface
• manufactured in ISO-9001.2000 approved Talema facility
• operating temperature: 0 to 70°C
Electrical Specifications @ 25°C
Standard Packaging:
Tape and Reel
Surface Mount S
0
Interface Transformers
Part Number
20186
L
N
(mH Min)
25
Turns Ratio
1:1
L
L
(µH Max)
2.0
C
C
(pF Max)
60
R
CU
P
(Ohms)
3,8
R
CU
S
(Ohms)
3,8
V
P
(Vrms)
1500
Test conditions
Inductance (Lo): Line side windings in series - measurement @ 10kHz, 100mV
Polarity and Turns Ratio: Pins 1 -2 : 3 - 4 : 5 - 6 : 7 - 8 = ±2%
Coupling Capacitance: IC side winding (windings in series) to Line side windings in series @ 10kHz, 100mV
Leakage Inductance: Line side windings in series, IC side winding/s short circuited - measurement @ 100kHz, 100mV
Test Voltage: 1.5kV for 2 Sec. - Line side windings in series to IC side windings in series
Coplanarity: ±0.004(0.10mm)
Dimensions
Wk/Yr
0.354 0.299
(9.00) (7.60)
3 x 0.050
(3 x 1.27)
TAL IN
20186
Suggested Pad
Layout
1
0.394
(10.00) 0.213
(5.40)
0.031
(0.80)
Schematic
Line
IC
8
0.228
(5.80)
0° - 8°
2
3
7
6
0.209 0.169
(5.30) (4.30)
0.020 x 0.12
(0.50 x 0.30)
3 x 0.050
(3 x 1.27)
4
5
Surface Coplanarity will be 0.004(0.10)
Dimensions: Inches (Millimeters)
Tolerance: ±0.010 (0.25) unless specified otherwise
Sales & Marketing, Design and Manufacturing Facilities
http://www.talema-nuvotem.com
Eastern Europe &
Czech Republic
NT MAGNETICS s.r.o.
Chebská 27
322 00 Plzeñ
Tel: Int. + 420 37 - 744 9303
Fax: Int. + 420 37 - 744 3697
Email: talema@talema.cz
Germany
TALEMA ELEKTRONIK GMBH
Sembdnerstr. 5, Postfach 2523
82110 Germering
Tel: Int. + 49 89 - 841 00 - 0
Fax: Int. + 49 89 - 841 00 25
Email: info@talema.de
Ireland
NUVOTEM TEO.
Crolly
Co. Donegal
Tel: Int. + 353 74 - 954 8666
Fax: Int. + 353 74 - 954 8139
Email: info@nuvotem.com
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
USA: AlfaMag Electronics LLC | 945 Parkwood | PO Box 668 | Rolla, MO
• India:
Germany: Int.+4989-841 00-0 • Ireland: Int.+35 375-48 666 • Czech Rep: Int.+420 19-744 9303
65402
Int.+91 427-387 492
Phone: 1-800-413-6693 FAX: 1-364-5390 EMail: support@alfamag.com
http://www.talema-nuvotem.com
http://www.alfamag.com
(03-04)
TALEMA [ NUVOTEM TALEMA ]
