*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.
PT231 Series - ISDN S-Interface Isolation Transformers
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
■60 dB min. longitudinal balance 10 kHz to
300 kHz
■Weight - 4 g
■Operating temperature 0 °C to +70 °C
■Lead free version available (see How to
Order)
■Lead free versions are RoHS compliant*
Applications
■Telecom
Electrical Specifications @ 25 °C
Primary
Turns Primary Leakage Pri/Sec
Part Ratio Inductance Inductance Cw/w Pri DCR Sec DCR Package
Number (±2 %) (mH min.) (µH max.) (pF max.) (Ω±15 %) (Ω±15 %) Schematic
PT23101 1:1 28 5 130 2.4 2.4 A
PT23102 1:1.8 28 10 120 2.4 4.5* B
PT23103 1:2 28 10 120 2.5 4.8 A
PT23104 1:2.5 28 12 125 2.5 5.5* B
PT23105 1:2 28 35 120 2.5 4.5 A
PT73455 1:1 28 5 130 2.4 2.4 C
*SPLIT WINDINGS IN SERIES
Product Dimensions 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)
DIMENSIONS ARE: MM
(INCHES)
Packaging Specifications
Tube ....................................36 pcs./tube
03/04
*RoHS COMPLIANT
VERSIONS
AVAILABLE
How to Order
PT2310x or PT73455 __
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)
