Features
■ Designed for isolation between line card
and terminal
■ Meets CCITT 1.430 when chip pairs and
transformers are used
■ Low leakage inductance
■ 2.0 kVrms HIPOT PRI/SEC
■ Weight - 4 g
■ 60 dB min. longitudinal balance 10 kHz to
300 kHz
■ Operating temperature 0 °C to +70 °C
■ RoHS compliant*
PT231 Series - ISDN S-Interface Isolation Transformers
Electrical Specifi cations @ 25 °C
*RoHS COMPLIANT
How To Order
PT2310x or PT73455 L
Model
Termination
L = Tin only (RoHS Compliant)
DIMENSIONS: MM
(INCHES)
Product Dimensions
Packaging Specifi cations
Tube ................................... 36 pcs./tube
Part
Number
Turns
Ratio
(±2 %)
Primary
Inductance
(mH min.)
Leakage
Inductance
(µH max.)
Primary
Pri/Sec
Cw/w
(pF max.)
Pri DCR
(Ω±15 %)
Sec DCR
(Ω±15 %)
Package
Schematic
PT23101L 1:1 28 5 130 2.4 2.4 A
PT23102L 1:1.8 28 10 120 2.4 4.5* B
PT23103L 1:2 28 10 120 2.5 4.8 A
PT23104L 1:2.5 28 12 125 2.5 5.5* B
PT23105L 1:2 28 35 120 2.5 4.5 A
PT73455L 1:1 28 5 130 2.4 2.4 C
*Split windings in series
Electrical Schematic
14.0
(.551)
1
2
3
6
5
4
MAX.
14.0
(.551)MAX.
10.2
(.401)MAX.
0.72
(.028)MAX.
0.6
(.023)DIA.
3.0
(.118)MIN.
10.2
(.401)
10.2
(.401)
Pri
1
2
3
6
5
4
Sec
A
Pri
1
3
6
4
Sec
C
Pri
1
2
3
7
6
5
4
Sec
B
5.1
(.200)
10.2
(.401)
10.2
(.401)
2.54
(.100)
2.54
(.100)
5.1
(.200)
10.2
(.401)
10.2
(.401)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
REV. 05/13
This series is currently available, but
not recommended for new designs.
