H1267 PULSE ELECTRONICS CORPORATION, H1267 Datasheet - Page 3

• Manufacturer Part Number: H1267
• Manufacturer: PULSE ELECTRONICS CORPORATION

Specifications of H1267

• Operating Temp Range: 0C to 70C
• Mounting: Surface Mount
• Pin Count: 24
• Insertion Loss (max): -1dB
• Isolation Voltage (max): 1500VrmsV
• Lead Style: Gull Wing
• Ocl Inductance (max): 0.35mH
• Operating Temperature Max Deg. C: 70C
• Operating Temperature Min Deg. C: 0C
• Product Depth (mm): 16mm
• Product Height (mm): 5.51mm
• Product Length (mm): 17.53mm
• Return Loss (min): -16dB
• Turns Ratio: 1CT:1CT
• Lead Free Status / RoHS Status: Not Compliant

10/100BASE-T SINGLE PORT,
SMT TRANSFORMER
For Fast Ethernet to Gigabit Ethernet
Interchangeable Designs
Application Circuit
H1267
W
The above circuit is a simple interface for a Fast Ethernet tranformer connecting to both the Fast Ethernet silicon and the RJ-45 connector. In order
to design a gigabit application, simply replace the Fast Ethernet Silicon, the Fast Ethernet transformer and the rest of the passive components with a
gigabit ethernet silicon, a gigabit transformer and the rest of the passive components.
It is highly recommended that the cable side Center Taps of each transformer be terminated to 75 Ω resistors and that the four center taps be
terminated to an EFI capacitor prior to ground termination.
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UK 44 1483 401 700
France 33 3 84 35 04 04
Singapore 65 6287 8998
Shanghai
China 86 769 5538070
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86 21 32181071
www.pulseeng.com
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H342.B (8/05)