oH
VE S CO
AV R M
AI SIO PL
LA N IA
BL S NT
E
Features
■
Designed for isolation between line card
■
Low leakage inductance
■
Weight - 4 g
■
60 dB min. longitudinal balance
and terminal
■
Meets the CCITT 1.430 when chip pairs
and transformers are used
■
4000 VAC HIPOT PRI/SEC in
conformance with international safety
standards
*R
10 kHz to 300 kHz
■
Operating temperature 0 °C to +70 °C
■
Lead free version available (see How to
Order)
■
Lead free versions are RoHS compliant*
PT731 Series - ISDN S Interface Isolation Transformer
Electrical Specifications @ 25
°C
Primary
Leakage
Inductance
(µH max.)
12
12
Part
Number
PT73173
PT73434
Turns
Ratio
(±2 %)
1:1
1:25
Primary
Inductance
(mH min.)
28
28
Pri/Sec
Cw/w
(pf max.)
120
60
Pri DCR
(Ω±15 %)
2.4
3.0
Sec DCR
(Ω±15 %)
2.4
15.0*
Schematic
A
B
*Split windings in series
Packaging Specifications
PT73173 ..............................50 pcs./tray,
500 pcs./carton
PT73434 ..............................38 pcs./tube
Product Dimensions
Electrical Schematic
A
1
Pri
Sec
6
13.2
MAX.
(.519)
2
5
3
B
0.6
DIA.
(.023)
4.0
MIN.
(.157)
1
Pri
Sec
4
7
6
5
4
2
3
4
5
6
DIMENSIONS ARE:
MM
(INCHES)
A
14.0
MAX.
(.551)
5.1
4
(.201)
PLCS.
11.4
(.448)
How to Order
PT73xxx __
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)
1
2
14.2
MAX.
(.559)
3
4
5
6
7
B
14.0
MAX.
(.551)
2.54 5.1 2.54
(.100) (.200) (.100)
5.1
2
(.200)
PLCS.
11.4
(.448)
1
2
14.2
MAX.
(.559)
3
03/05
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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