H1267NL PULSE ELECTRONICS CORPORATION, H1267NL Datasheet - Page 2

• Manufacturer Part Number: H1267NL
• Description: MODULE XFRMR SGL ETHR LAN24P SMD
• Manufacturer: PULSE ELECTRONICS CORPORATION

Specifications of H1267NL

• Turns Ratio - Primary:secondary: 1CT : 1CT
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Inductance: -
• Transformer Type: -
• E.t.: -
• Other names: 553-1429

10/100BASE-T SINGLE PORT,
SMT TRANSFORMER
For Fast Ethernet to Gigabit Ethernet
Interchangeable Designs
Application Notes
The Fast Ethernet to Gigabit Ethernet interchangeable
design is a design concept that allows design engineers
to design a network applications board that can support
both Fast Ethernet (10/100Base-T) and Gigabit Ethernet
(1000Base-T) applications by simply replacing several
components without having to re-design the whole board.
Two components that play a part in this design are the
Ethernet silicon and the transformer. Both the silicon and
the transformer for both 10/100 and gigabit must have
footprint compatibility. This footprint compatibility will
mean a single board layout for the interface between the
Ethernet silicon and the transformer of either 10/100 or
gigabit applications.
www.pulseeng.com
H1267
USA 858 674 8100
• •
UK 44 1483 401 700
• •
France 33 3 84 35 04 04
• •
Singapore 65 6287 8998
Schematic
2
Presently, if a network design engineer wants to design a
10/100 card, he would have to choose a 10/100
transformer. If the engineer wants to design a gigabit
card, he would have to choose a gigabit transformer. This
leads to two different designs (board layout) for two
different applications.
The objective of interchangeable design is to allow the
engineer to utilize the same design (and board layout) for
10/100 and for a gigabit design (and vice versa) with
minimal change as possible to the design.
• •
Shanghai
86 21 32181071
• •
China 86 769 5538070
• •
Taiwan 886 2 26980228
H342.B (8/05)