Ro VER LEA
H S SI D F
CO ON RE
M SA E
PL R
IA E
NT
Features
■
Lead free versions available
■
RoHS compliant (lead free version)*
■
Compliant with IEEE802.3ab Draft
■
Low profile surface mount packaging
designed for reflow process (225 ° peak)
■
Supports 4 pairs of Category 5 UTP cables
Standards for 1000 Base-T
■
Designed for Long Haul Gigabit Ethernet
10/100/1000 Base-T Full Duplex
applications
Applications
■
LAN
■
Ethernet
PT61021
LAN 10/100/1000 Base-T Transformer Modules
Electrical Specifications @ 25
°C
Inductance ...........................350
µH
min.
with 8 mA DC bias @ 100 KHz, 0.2 V
Leakage Inductance...........0.50
µH
max.
@ 100 KHz, 0.2 V
Interwinding Capacitance .......25 pF typ.
@ 100 KHz, 0.2 V
DC Resistance .....................0.90
Ω
max.
Insertion Loss ....................0.3-100 MHz
-1.1 dB max.
Return Loss (dB min.)
0.3-30 MHz ......................................-18
40 MHz ........................................-14.4
50 MHz ........................................-13.1
60-80 MHz ......................................-12
Cross Talk (dB min.)
0.3-30 MHz ......................................-35
60-100 MHz ....................................-28
Common Mode Rejection (dB min.)
0.3-30 MHz ......................................-40
60 MHz ............................................-35
80-100 MHz ....................................-30
Turns Ratio ..........................1 CT:1±5 %
Isolation Hi-Pot....1500 VAC 1 mA 1 sec.
Operating Temperature
......................................0 ° C to +70 °C
Packaging Specifications
Tube .................................28 pieces/tube
Model
Termination
Blank = Tin-lead
L = Tin only (lead free)
Electrical Schematic
TCT1
TD1+
1
2
1CT:1
24
23
MCT1
MX1+
Product Dimensions
13.97
(0.55)
TD1-
TCT2
TD2+
3
4
5
1CT:1
22
21
20
MX1-
MCT2
MX2+
12.40
(0.488)
Bourns
PT61021
DATE CODE
17.80
(0.701)
MAX.
15.80
(0.622)
TD2-
TCT3
TD3+
6
7
8
1CT:1
19
18
17
MX2-
MCT3
MX3+
PIN 1
6.80
(0.268)
TD3-
9
16
15
1CT:1
14
MX3-
MCT4
MX4+
TCT4 10
TD4+ 11
0.30 ± 0.15
(0.012 ± 0.006)
1.27
(0.05)
0.46
(0.018)
TD4- 12
13
MX4-
8˚
How to Order
PT61021 __
0.90
(0.035)
Recommended Layout
2.29
(0.090)
13.97
(0.95)
16.76
(0.660)
1.27
(0.05)
0.76
(0.030)
Reliable Electronic Solutions
Asia-Pacific:
TEL +886-2 25624117 • FAX +886-2 25624116
Europe:
TEL +41-41 7685555 • FAX +41-41 7685510
The Americas:
TEL +1-951 781-5500 • FAX +1-951 781-5700
DIMENSIONS:
MM
(INCHES)
0.25
(.010)
TOLERANCES: ±
www.bourns.com
02/05
*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.
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