LAN ISOLATION
TRANSFORMER CATALOG
TABLE of CONTENTS
ISOLATION TRANSFORMERS
10BASE-T FOR ADAPTER CARDS, MAUs, HUBS AND MOTHERBOARD APPLICATIONS
Electrical Specifications: Surface Mount and Through Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ETHERNET AUI TRANSFORMERS
Electrical Specifications: Surface Mount and Through Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
APPLICATION CIRCUITS
10Base-T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SCHEMATICS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
MECHANICALS
Surface Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Through Hole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai 86 21 32181071
•
China86 755 33966678 •
Taiwan 886 3 4356768
USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 •
Shanghai
86 21 62787060
China 86 755 33966678
Taiwan 886 3 4643715
www.pulseeng.com
1
EC100.N (1/10)
ISOLATION TRANSFORMERS
FOR 10BASE-T
For Adapter Cards, MAUs, Hubs,
and Motherboard Applications
Meets IEEE 802.3 specification
Available with common mode chokes
for EMI suppression
Through hole, auto-insertable, 16-pin
DIP package
Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C
Part
2
Number
Turns Ratio
(±5%)
Transmit
S
URFACE
M
OUNT
2
23Z128SM
1CT:1.414CT
23Z356SM
1CT:1.414CT
23Z467SM
1CT:2CT
4
E2023
1CT: 2.5CT
E4001
1CT:2CT
3
EX2024
1CT: 2.5CT
PE-65454
1:1.414
PE-65745
1CT: 1.414CT
PE-68023
1CT:2CT
PE-68048
1CT: 1.414CT
PE-68052
2CT:1CT
PE-68810
—
PE-68820
T
HROUGH
H
OLE
23Z128
1CT: 2CT
1CT:1CT
6-8/1-3
—
140
15
0.5
0.4
2000
1. OCL, Cww
and
L
L
are measured at 20 mVrms, 100 kHz.
2. For
Tape & Reel packaging, add the suffix
“T”
to the end of the part number when ordering. e.g. E2023T.
3. Part
numbers denoted ”EX” are extended temperature parts -40°C to 85°C, electrical specifications @ 25°C.
4. E2023NL
is the RoHS compliant version of E2023.
1:1.414 (4X)
Receive
1CT:1CT
1CT:1CT
1CT:1CT
1CT: 1CT
1CT:1CT
1CT:1CT
1:1
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1:1 (4X)
—
6-8/1-3
6-8/1-3
6-8/1-3
6-8/1-3
6-8/1-3
6-8/1-3
3-4/1-2
6-8/1-3
1-3/6-8
6-8/1-3
1-3/6-8
1-2/3-4
1-2/3-4
5-6/7-8
Primary
Pins
Common
Mode
Choke
Sine Wave Interwinding
Leakage
Inductance Capacitance Inductance
DCR
OCL
Cww
1
L
L
1
(Ω MAX)
(µH MIN)
(pF MAX)
(µH MAX)
200
200
140
200
112
350
140
140
200
110
140
140
40
15
12
12
15
8
30
12
12
12
15
12
12
12
0.5
0.5
0.2
0.5
0.3
0.8
0.2
0.2
0.3
0.4
0.3
0.2
0.2
0.4
0.6
0.6
0.4
0.8
0.6
0.4
0.3
1.0
1.0
1.0
0.4
0.4
Hipot
(Vrms)
Schem. Mech
PAGES
6-7
PAGES
8-9
—
✓
✓
✓
✓
✓
—
—
✓
✓
✓
—
—
2000
2000
2000
2000
3000
2000
2000
1500
1500
1500
1500
2000
2000
T4
T7
T7
T10
T5
T10
T1
T4
T6
T5
T6
T3
T3
PAGE
SMT5
SMT5
SMT5
SMT4
SMT4
SMT4
SMT2
SMT4
SMT4
SMT4
SMT4
SMT4
SMT4
PAGE
6
10
T4
TH3
USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai
86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
www.pulseeng.com
2
EC100.N (1/10)
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
3
Turns Ratio
(±5%)
Primary
Pins
Primary
Sine Wave
OCL
1
(µH ±20%)
75
100
350
75
150
100
100
150
Primary
Interwinding Leakage
2
ET-Constant Rise Time Capacitance Inductance
DCR
Schem. Mech. Hipot
(V-µs MIN)
(ns MAX)
Cww
1
L
L
1
(Ω MAX)
(Vrms)
(pF MAX)
(µH MAX)
PAGE
S
URFACE
M
OUNT
3
23Z90SM
23Z91SM
23Z108SM
5
PE-65723
PE-65727
PE-65728
T
HROUGH
H
OLE
PE-64108
PE-64109
6
PAGES
8-9
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
1-2/4-5/7-8
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
2.4
2.4
2.5
1.8
1.2
1.8
2.1
3.0
3.0
3.0
3.5
3.0
3.0
3.0
3.5
3.0
10
10
16
8
12
9
10
15
0.20
0.20
0.30
0.20
0.20
0.20
0.25
0.20
0.20
0.30
0.35
0.30
0.30
0.30
0.40
0.45
T2
T2
T2
T2
T2
T2
PAGES
SMT5
SMT5
SMT5
SMT4
SMT4
SMT4
PAGE
2000
2000
2000
2000
2000
2000
2000
2000
6
9-10
T2
T2
TH2
TH2
1. OCL, Cww and LL are measured at 20 mVrms, 100 kHz.
2. Rise time is measured in 75
Ω
systems.
3. For Tape & Reel packaging, add a suffix “T” to the end of the part number when ordering. e.g. PE-65723T.
USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai
86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
www.pulseeng.com
3
EC100.N (1/10)
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.
USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai
86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
www.pulseeng.com
4
EC100.N (1/10)
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
USA 858 674 8100
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai
86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
www.pulseeng.com
5
EC100.N (1/10)
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