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
SURFACE MOUNT 2
23Z128SM
1CT:1.414CT
23Z356SM
1CT:1.414CT
23Z467SM
1CT:2CT
E2023 4
1CT: 2.5CT
E4001
1CT:2CT
EX2024 3
1CT: 2.5CT
PE-65454
1:1.414
PE-65726
1CT:1CT
PE-65745
1CT: 1.414CT
PE-68023
1CT:2CT
PE-68041
1CT:2CT
PE-68048
1CT: 1.414CT
PE-68052
2CT:1CT
PE-68810
—
PE-68820
THROUGH HOLE
23Z128
PE-65263
1:1.414 (4X)
Primary
Pins
Receive
Common
Mode
Choke
Sine Wave
Inductance
OCL1
(µH MIN)
Interwinding
Leakage
Capacitance Inductance
DCR
Cww1
LL1
(Ω MAX)
(pF MAX)
(µH MAX)
Hipot
(Vrms)
Schem. Mech
pages 6-7
1CT:1CT
1CT:1CT
1CT:1CT
1CT: 1CT
1CT:1CT
1CT:1CT
1:1
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1:1 (4X)
X
X
X
X
X
X
X
X
200
200
140
200
112
350
140
200
140
200
112
110
140
140
15
12
12
15
8
30
12
10
12
12
8
15
12
12
0.5
0.5
0.2
0.5
0.3
0.8
0.2
0.2
0.2
0.3
0.3
0.4
0.3
0.2
0.4
0.6
0.6
0.4
0.8
0.6
0.4
0.3
0.3
1.0
0.5
1.0
1.0
0.4
2000
2000
2000
2000
3000
2000
2000
2000
1500
1500
1500
1500
1500
2000
40
12
0.2
0.4
2000
pages 8-9
T4
T7
T7
T10
T5
T10
T1
T4
T4
T6
T4
T5
T6
T3
SMT5
SMT5
SMT5
SMT4
SMT4
SMT4
SMT2
SMT4
SMT4
SMT4
SMT4
SMT4
SMT4
SMT4
1CT:1CT
1CT:1CT
6-8/1-3
1-3/6-8
140
200
15
15
0.5
0.25
0.4
0.3
2000
2000
T3
SMT4
pages 6
1CT: 2CT
1CT:1CT
—
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
1-3/6-8
6-8/1-3
1-3/6-8
6-8/1-3
6-8/1-3
1-3/6-8
1-2/3-4
1-2/3-4
5-6/7-8
page 10
T4
T4
TH3
TH4
1. OCL, Cww and LL 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.
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www.pulseeng.com
2
EC100.L (4/08)
