E1/T1/PRI/CEPT Single Interface Transformers
Features
• SMD package for high density board plcement
• consistent and reliable coplanarity
• controlled parameters ensure full compliance with ITU-T
G.703 when
matched with recommended IC
• ideal for all 1.544 and 2.048 Mbs interface applications
• manufactured in an ISO-9001:2000, TS-16949:2002
and ISO-14001:2004 certified Talema facility
• 1500Vrms minimum isolation voltage
• operating temperature: -4 0° to 85°
• fully RoHS compliant and meets lead free reflow
level J-STD-020C
Electrical Specifications @ 25°C
S
2M
Interface Transformers
Part Number
19794
Turns Ratio
±2%
1 : 1.414
OCL
(mH Min.)
W2
4,0
L
L
(µH Max.)
1,0
DCR
(Ohms Max.)
W1
0.4
DCR
(Ohms Max.)
W2
0.5
V
P
(Vrms)
1500
Test Conditions:
Inductance:
Leakage Inductance:
Turns Ratio:
High Voltage:
W2 - measurement at 10kHz, 100mV
W2 <1.0µH, W1 short circuited - measurement at 100kHz, 10mA
W1 : W2; Tolerance ±2%
2.0kV for 1 second, W1 to W2
Dimensions & Schematics
Schematic
4
0.590
(15.00)
0.098
(2.50)
0° - 8°
0.300
(7.62)
0.047
(1.20)
Suggested
Pad Layout
0.551 0.472
(14.00) (12.00)
TALEMA IN
WK/YR
Part Number
1
0.100
(2.54)
0.300
(7.62)
0.433
(11.00)
0.339 0.291
(8.60) (7.40)
W1
W2
5
8
1
:
1.414
0.020
(0.50)
Dimensions: Inches (Millimeters)
Tolerance: ±0.010 (0.25) unless specified otherwise
Coplanarity: <0.004 (0.10)
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. + 420 377 - 338 351
Fax: Int. + 420 377 - 338 350
Email: talema@talema.cz
Web Site: www.ntmagnetics.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
Web Site: www.talemaindia.com
THE TALEMA GROUP • Magnetic Components for ISDN / xDSL / LAN Data Communications
(10-06) Communications\ E1/T1\19649
TALEMA [ NUVOTEM TALEMA ]
