ISOLATION TRANSFORMERS
FOR 10BASE-T APPLICATIONS
For Adapter Cards, Hubs and Motherboards
Designed to meet or exceed IEEE802.3, 10Base-T
specifications
Peak solder reflow Temperature rating per Table 5-2
defined in IPC/JEDEC J-STD-020C
Available with Common Mode Choke options for EMI suppression
Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C
Part
Number
1, 2
E2452NL
E2454NL
E2457NL
E2458NL
E2466NL
E2467NL
Turns Ratio
Transmit
1CT:1CT
1CT:2CT
1CT:1.41CT
1CT:1.41CT
1CT:2CT
1CT:2CT
Receive
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
1CT:1CT
Primary
Pins
TX/RX
1-3/6-8
1-3/6-8
6-8/1-3
6-8/1-3
6-8/1-3
6-8/1-3
Common
Mode
Choke
None
TX only
None
Shared
None
Shared
Inductance
Primary
(µH)
140/140
50/200
140/140
160/160
20/100
20/100
Interwinding
Capacitance
(pfMAX)
12
12
12
12
12
12
Leakage
Inductance
(µH MAX)
0.3
0.3
0.2
0.4
0.3
0.3
Winding
Resistance
(MAX)
0.3
1.0
0.3
0.3
0.6
0.6
Vrms
1500
1500
1500
1500
1500
1500
1. All above parts Moisture Sensitivity Level (MSL) = 1
2. All parts are supplied in Tubes but Tape & Reel options can be requested by adding “T” to the end of the part code, eg. E2457NLT will be the
Tape & Reel version of E2457NL.
Schematics
E24XXNL
1
2
3
6
7
8
16
15
14
11
10
9
1
2
3
6
7
8
Pri-Sec
16
15
14
11
10
9
1
2
3
6
7
8
Pri-Sec
16
15
14
11
10
9
Pri-Sec
Part without Choke
Part with TX Choke
Part including Shared Choke
USA 858 674 8100
•
UK 44 1483 401 700
•
France 33 3 84 35 04 04
•
Singapore 65 6287 8998
•
Shanghai
86 21 32181071
•
China 86 769 5538070
•
Taiwan 886 2 26980228
www.pulseeng.com
1
E124.A (1/06)
PULSE [ PULSE A TECHNITROL COMPANY ]
