LAN ISOLATION
TRANSFORMER CATALOG
TABLE of CONTENTS
ISOLATION TRANSFORMERS
10BASE-T
Electrical Specifications: Surface Mount and Through Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
ETHERNET
Electrical Specifications: Surface Mount and Through Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
APPLICATION CIRCUITS
10Base-T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
SCHEMATICS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
MECHANICALS
Surface Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Through Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
US 858 674 8100
•
UK 44 1483 401 700
•
France 33 3 84 35 04 04
•
Singapore 65 287 8998
•
Taiwan 886 2 2698 0228
•
Hong Kong 852 2788 6588
•
http://www.pulseeng.com
1
EC100.E (8/02)
ISOLATION TRANSFORMERS
FOR 10BASE-T
For Adapter Cards, MAUs, Hubs,
and Motherboard Applications
Designed to meet or exceed IEEE 802.3,
10Base-T specifications
Available with common mode chokes for
EMI suppression
Surface mount, IC grade, transfer-molded
package withstands 235°C peak
temperature profile
Through hole, auto-insertable, 16-pin
DIP package
Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C
Part
Number
S
URFACE
M
OUNT
PE-65454
E5017
PE-65726
23Z114SM
PE-68048
PE-65745
23Z128SM
E2023
E4005
EX2024
3
23Z356SM
23Z435SM
PE-68052
E4001
PE-68041
23Z467SM
PE-68023
PE-68042
PE-68810
PE-68820
T
HROUGH
H
OLE
23Z435
23Z128
PE-65263
2
Turns Ratio
(±5%)
Transmit
1:1.414
1CT:1CT
1CT:1CT
1CT:1CT
1CT: 1.414CT
1CT: 1.414CT
1CT:1.414CT
1CT: 2.5CT
1CT: 2.5CT
1CT: 2.5CT
1CT:1.414CT
2CT:1CT
2CT:1CT
1CT:2CT
1CT:2CT
1CT:2CT
1CT:2CT
2.828CT:1
—
1:1.414 (4X)
Receive
1:1
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT: 1CT
1CT: 1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1:1
1:1 (4X)
—
Primary
Pins
Common Sine Wave
Inductance
Mode
OCL
1
Choke
(µH MIN)
140
200
200
200
110
140
200
200
200
350
200
100
140
112
112
140
200
200
140
140
Interwinding
Leakage
Capacitance Inductance DCR
Hi-Pot
Cww
1
L
L
1
(Ω MAX) (Vrms)
(pF MAX)
(µH MAX)
12
10
10
12
15
12
15
15
10
30
12
10
12
8
8
12
12
14
12
12
0.2
0.25
0.2
0.3
0.4
0.2
0.5
0.5
0.4
0.8
0.5
0.4
0.3
0.3
0.3
0.2
0.3
1
0.2
0.2
0.4
1.0
0.3
0.3
1.0
0.3
0.4
0.4
0.5
0.6
0.6
0.5
1.0
0.8
0.5
0.6
1.0
0.5
0.4
0.4
2000
1500
2000
2000
1500
2000
2000
2000
1500
2000
2000
2000
1500
3000
1500
2000
1500
1500
2000
2000
Schem.
Mech.
pages 6-7 pages 8-9
3-4/1-2
1-3/6-8
1-3/6-8
1-3/6-8
6-8/1-3
6-8/1-3
6-8/1-3
6-8/1-3
6-8/1-3
6-8/1-3
6-8/1-3
1-3/6-8
1-3/6-8
6-8/1-3
6-8/1-3
6-8/1-3
1-3/6-8
2-4/7-9
1-2/3-4
1-2/3-4
5-6/7-8
1-3/6-8
6-8/1-3
1-3/6-8
X
X
X
X
X
X
X
X
X
X
T1
T6
T4
T4
T5
T4
T4
T10
T10
T10
T7
T4
T6
T5
T4
T7
T6
T9
T3
T3
SMT2
SMT4
SMT4
SMT5
SMT4
SMT4
SMT5
SMT4
SMT4
SMT4
SMT5
SMT5
SMT4
SMT4
SMT4
SMT5
SMT4
SMT1
SMT4
SMT4
pages 6-7 page 10
2CT:1CT
1CT: 2CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
80
140
200
10
15
15
0.4
0.5
0.25
0.5
0.4
0.3
2000
2000
2000
T4
T4
T4
TH3
TH3
TH4
NOTES:
1. OCL, Cww
and
L
L
are measured at 20 mVrms, 100 kHz.
2.
To order Tape & Reel packaging for surface mount parts, add the suffix
“T”
to the part number. Example: PE-65454T. The
“T”
will appear on all
paper work, but will not be marked on parts.
3.
Part numbers denoted ”EX” are extended temperature parts -40°C to 85°C, electrical specifications @ 25°C.
US 858 674 8100
•
UK 44 1483 401 700
•
France 33 3 84 35 04 04
•
Singapore 65 287 8998
•
Taiwan 886 2 2698 0228
•
Hong Kong 852 2788 6588
•
http://www.pulseeng.com
2
EC100.E (8/02)
ISOLATION TRANSFORMERS
FOR ETHERNET
AUI Transformers
Low leakage inductance and coupling
capacitance for faster rise times
Small form factor, 50 mil lead spacing
Through hole, auto-insertable,
16-pin DIP package
Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C
Part
Number
Turns
Ratio
(±5%)
Primary
Pins
Primary
Primary
Sine Wave
Rise Time
2
ET-Constant
1
OCL
(ns MAX)
(V-µs MIN)
(µH ±20%)
40
(MIN)
75
75
75
100
100
150
350
350
75
75
75
100
100
100
150
150
2.1
1.8
1.8
2.4
1.8
2.4
1.2
2.6
2.5
2.1
2.4
2.1
2.1
2.1
2.1
2.1
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.5
3.5
3.0
3.5
3.0
3.0
3.5
3.0
3.5
3.0
Interwinding
Leakage
Capacitance Inductance
Cww
1
L
L
1
(pF MAX)
(µH MAX)
8
8
12
10
9
10
12
16
16
10
10
10
10
10
10
12
15
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.30
0.30
0.20
0.25
0.20
0.20
0.25
0.20
0.20
0.20
DCR
(Ω MAX)
Schem.
Mech.
Hipot
(Vrms)
S
URFACE
M
OUNT
3
E6002
PE-65723
PE-68801
23Z90SM
PE-65728
23Z91SM
PE-65727
PE-65733
23Z108SM
T
HROUGH
H
OLE
PE-64102
PE-64107
PE-64502
PE-64103
PE-64108
PE-64503
PE-64104
PE-64109
NOTES:
1. OCL, Cww
and
L
L
are measured at 20 mVrms, 100 kHz.
2.
Rise time is measured in 75
Ω
systems.
3.
To order Tape & Reel packaging for surface mount parts, add the suffix
“T”
to the part number.
Example: PE-65723T. The
“T”
will appear on all paper work, but will not be marked on parts.
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1:1
1-2/4-5/7-8
1-2/4-5/7-8
1-2/3-4/5-6
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
1-2/4-5/7-8
0.25
0.30
0.30
0.20
0.30
0.30
0.30
0.35
0.35
0.20
0.30
0.20
0.30
0.40
0.30
0.30
0.45
pages 6-7 pages 8-9
T2
T2
T8
T2
T2
T2
T2
T2
T2
pages 6-7
SMT4
SMT4
SMT3
SMT5
SMT4
SMT5
SMT4
SMT4
SMT5
page 10
2000
2000
2000
2000
2000
2000
2000
2000
2000
500
2000
2000
500
2000
2000
500
2000
T2
T2
T2
T2
T2
T2
T2
T2
TH4
TH2
TH4
TH4
TH2
TH4
TH4
TH2
US 858 674 8100
•
UK 44 1483 401 700
•
France 33 3 84 35 04 04
•
Singapore 65 287 8998
•
Taiwan 886 2 2698 0228
•
Hong Kong 852 2788 6588
•
http://www.pulseeng.com
3
EC100.E (8/02)
ISOLATION TRANSFORMERS
Typical Application Circuit
+5 V
R1 R2 R3
R4 R5
TXLED
RXLED
COLLED
POLLED
LNKLED
R6
TXU+
TXS+
TXS-
TXU-
RXI+
RXI-
Req
Rlx
R7
R8
R9
LED
INDICATORS
NOTE 1
PE-68023
1:2
TPI
TD+
TD-
RD+
RD-
R J-45
R10
49.9
R13
R11
49.9
C5
0.01
µF
1:1
DP83907
R12 +5 V
C1
0.01 µF
1:1
NOTE 3
CD+
CD-
RX+
RX-
TX+
TX-
PE-65728
NOTE 2
R16
39.2
C2
0.01 µF
+ 12 V
A UI
+12 V
CD+
CD-
RX+
RX-
TX+
TX-
GND
R17
39.2
C3
0.01 µF
R18
39.2
R19
39.2
C4
0.01 µF
D B15
NOTES:
1. Connections at pins 12 and 13 apply to PE-68023 only. These are test points.
Do not ground.
2. For specific information, see pages 2 and 3 in this catalog.
3. For specific connection, refer to National’s Application Notes.
US 858 674 8100
•
UK 44 1483 401 700
•
France 33 3 84 35 04 04
•
Singapore 65 287 8998
•
Taiwan 886 2 2698 0228
•
Hong Kong 852 2788 6588
•
http://www.pulseeng.com
4
EC100.E (8/02)
ISOLATION TRANSFORMERS
Typical 10Base-T Application Circuit
TX 1: 2
TPDOP1
TPDON1
TPDOP2
TPDON2
TPDOP3
TPDON3
TPDOP4
TPDON4
24.9
56
57
54
53
51
50
48
47
24.9
24.9
24.9
24.9
24.9
24.9
24.9
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PE-68820
1
2
3
4
5
6
7
8
RJ-45
RX 1:1
TPDIP1
TPDIN1
TPDIP2
TPDIN2
TPDIP3
TPDIN3
TPDIP4
TPDIN4
66
65
64
63
62
61
60
59
1
100
2
3
100
4
5
100
6
7
100
8
9
11
10
13
12
15
14
16
1
2
3
4
5
6
7
8
RJ-45
LXT914
PE-68810
1
2
3
4
5
6
7
8
RJ-45
AUICIN
AUICIP
AUIDIN
AUIDIP
AUIDON
AUIDOP
45
44
43
42
41
40
1
78.7
2
4
78.7
5
7
78.7
8
16
15
13
12
10
9
CD-
CD+
RD -
RD +
TD -
TD +
DB-15
CONNECTOR
1
2
3
4
5
6
7
8
RJ-45
PE-65723
ETHERNET
TRANSFORMER
US 858 674 8100
•
UK 44 1483 401 700
•
France 33 3 84 35 04 04
•
Singapore 65 287 8998
•
Taiwan 886 2 2698 0228
•
Hong Kong 852 2788 6588
•
http://www.pulseeng.com
5
EC100.E (8/02)
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