Product Details
PoE LAN Transformer Overview
The 749013011A is a high-performance LAN transformer specifically designed for 10/100 Base-T Ethernet applications with Power over Ethernet (PoE) support. This SMT transformer provides signal integrity, electrical isolation, and efficient power transfer over Ethernet cables, fully compliant with IEEE 802.3 and IEEE 802.3af standards.
It is ideal for industrial automation, IP communication, and IoT
applications where reliable Ethernet connectivity and PoE power delivery are required.
Key Features and Specifications of 749013011A PoE Transformer
| Property | Test Conditions | Value | Unit | Tolerance |
|---|
| Inductance (L) | 100 kHz / 100 mV @ 8 mA | 350 | µH | min. | | Insulation Test Voltage (VT) | 1 min | 1500 | V (RMS) | min. | | Insertion Loss (IL) | 1–100 MHz | -1.1 | dB | max. | | Return Loss (RL) | 1–30 MHz @ 100 Ω | -18 | dB | min. | | 30–60 MHz @ 100 Ω | -14 | dB | min. | | 60–80 MHz @ 100 Ω | -12 | dB | min. | | 80–100 MHz @ 100 Ω | -10 | dB | min. | | Differential to Common Mode Rejection Ratio (DCMR) | 1–30 MHz | -38 | dB | min. | | 30–60 MHz | -38 | dB | min. | | 60–100 MHz | -30 | dB | min. | | Crosstalk (CT) | 1–60 MHz | -40 | dB | min. | | 60–100 MHz | -35 | dB | min. | | Turns Ratio (n) | — | 1:1 | — | ±3% | | Data Rate | — | 10/100BASE-TX | — | — |
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|---|
749013011A Datasheet-Schematic
749013011A Datasheet-Recommended Land Pattern
Mechanical Dimensions
- Length: 12.20 ±0.25 mm
- Width: 7.0 ±0.25 mm
- Height: 5.40 ±0.25 mm
- Mounting Type: Surface Mount (SMT)
- Package: Compact design suitable for high-density PCB layouts
PoE Capability of 749013011A SMT LAN Transformer
The 749013011A supports PoE operation with up to 350 mA current per center tap, allowing both data transmission and DC power delivery through a single Ethernet cable.
It is optimized for thermal reliability — ensuring stable
performance up to +105°C component temperature under full PoE load.
Company Profile
LINK-PP is a professional designer and Manufacturer of magnetic telecom
and networking components. Founded in Shenzhen in 1997 and began to
develop Discrete Transformer. With over 26 years of experience in
innovation and technology leadership. Our main products include
RJ45 Connectors, LAN Transformers, and SFP Modules. We focus on
improving product reliability and durability.
With a global customer base covering Communications, Consumer,
Industrial, and IoT industries. Our products are integral to a wide
range of devices, from HUBs and PC cards to Switches, Routers, and
more.
LINK-PP is a global supplier for OEMs, contract manufacturers, and
CEMs. Standard catalog magnetics and custom solutions are
available. With more than two decades of innovation, LINK-PP
continues to lead the way in technology, design and manufacturing.
Main Production Lines
◆ 10/100/1000/10GBase-T LAN Isolation Transformer and Filter
◆ Rj45 Modular Jack With Integrated 10/100/1000/10G Magnetics
◆ Magnetic Rj45 Jack with POE/ POE+; IEEE823.3af/ IEEE802.3at
◆ LAN Transformer With POE/ POE+; IEEE823.3af/ IEEE802.3at
◆ T1/E1,T3/DS3/E3/STS-1 Interface LAN transformer
◆ ISDN,HDSL,ADSL and VDSL Transformer and splitter
◆ Optical Transceivers