LINK-PP INT'L TECHNOLOGY CO., LIMITED
| Payment Terms | TT,NET30/60/90 Days |
| Supply Ability | 3KK/Month |
| Delivery Time | in Stock Ship Today |
| Packaging Details | T&R |
| Specifications | 749020011A |
| Transformer Type | WE-LAN LAN Transformer |
| Turns Ratio | 1 : 1 Transmitter, 1 : 1 Receiver |
| Mounting Type | Surface Mount |
| Dimensions | L 17.6 X W 12.2 X H 6.0 (mm) |
| Free Samples | 3-5 pcs For Free |
| Support | PDF/3D/ISG/Stp/Step/Datasheet |
| Lifecycle | More than 20 Years |
| Improved CMRR | YES |
| 100% Cross | LINK-PP LP5007NL |
| Isolation Voltage | 1500 V RMS |
| Inductance | 350 µH @ 100 kHz / 8 mA DC bias |
| Brand Name | LINK-PP |
| Model Number | 749020011A |
| Certification | UL,RoHS,Reach,ISO |
| Place of Origin | Guangdong,China |
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Product Specification
| Payment Terms | TT,NET30/60/90 Days | Supply Ability | 3KK/Month |
| Delivery Time | in Stock Ship Today | Packaging Details | T&R |
| Specifications | 749020011A | Transformer Type | WE-LAN LAN Transformer |
| Turns Ratio | 1 : 1 Transmitter, 1 : 1 Receiver | Mounting Type | Surface Mount |
| Dimensions | L 17.6 X W 12.2 X H 6.0 (mm) | Free Samples | 3-5 pcs For Free |
| Support | PDF/3D/ISG/Stp/Step/Datasheet | Lifecycle | More than 20 Years |
| Improved CMRR | YES | 100% Cross | LINK-PP LP5007NL |
| Isolation Voltage | 1500 V RMS | Inductance | 350 µH @ 100 kHz / 8 mA DC bias |
| Brand Name | LINK-PP | Model Number | 749020011A |
| Certification | UL,RoHS,Reach,ISO | Place of Origin | Guangdong,China |
| High Light | 749020011A ，Surface Mounting Transformer ，WE-LAN LAN Transformer | ||
749020011A WE-LAN LAN Transformer for 1000Base-T SMT RJ45 applications, featuring 1500V isolation, 350µH inductance, improved CMRR, and –40°C to +85°C industrial temperature range. Ideal for industrial Ethernet, routers, switches, IP cameras, and IoT devices.
The 749020011A WE-LAN LAN Transformer is a high-performance SMT Ethernet isolation transformer designed for 1000Base-T Gigabit Ethernet interfaces. Featuring enhanced common-mode noise suppression (Improved CMRR), industrial-grade temperature range, and excellent signal integrity, this transformer is optimized for SMT RJ45 connector modules, Ethernet PHY designs, and industrial networking equipment.
It is widely used in industrial Ethernet systems, routers, switches, automation devices, IP cameras, and IoT gateways, delivering reliable EMI suppression, signal isolation, and stable Ethernet performance.
It is an ideal choice for high-reliability industrial networking equipment and embedded Ethernet systems.
| Parameter | Symbol | Test Conditions | Value | Unit |
|---|---|---|---|---|
| Inductance | L | 100 kHz / 100 mV @ 8 mA DC bias | 350 | µH (min.) |
| Insulation Test Voltage | VT | 1 min | 1500 | V RMS (min.) |
| Insertion Loss | IL | 1–100 MHz | –1 | dB (max.) |
| Return Loss | RL | 1–40 MHz @ 100 Ω | –18 | dB (min.) |
| Return Loss | RL | 50 MHz @ 100 Ω | –16 | dB (min.) |
| Return Loss | RL | 60–80 MHz @ 100 Ω | –12 | dB (min.) |
| Return Loss | RL | 80–100 MHz @ 100 Ω | –10 | dB (min.) |
| Differential to Common Mode Rejection | DCMR | 1–30 MHz | –43 | dB (min.) |
| Differential to Common Mode Rejection | DCMR | 30–60 MHz | –37 | dB (min.) |
| Differential to Common Mode Rejection | DCMR | 60–100 MHz | –33 | dB (min.) |
| Crosstalk | CT | 1–60 MHz | –40 | dB (min.) |
| Crosstalk | CT | 60–100 MHz | –35 | dB (min.) |
| Turns Ratio | n | — | 1:1 | ±3% |
| Item | Description |
|---|---|
| Product Type | LAN Transformer / Ethernet Isolation Transformer |
| Data Rate | 1000Base-T |
| Ports | 1 |
| Mounting | SMT (Surface Mount) |
| PoE Support | No |
| Isolation Voltage | 1500 V RMS |
| Operating Temperature | –40 °C to +85 °C |
| Storage Conditions | < 40 °C, < 75% RH |
| Moisture Sensitivity Level | MSL 1 |
| Standards Compliance |
IEEE 802.3ab |
The 749020011A WE-LAN LAN Transformer offers a high-performance, SMT-friendly, industrial-grade solution for Gigabit Ethernet isolation and noise suppression. With excellent CMRR, wide temperature range, and broad PHY compatibility, it is an optimal choice for SMT RJ45 connector modules and industrial Ethernet hardware designs.
With excellent Differential-to-Common-Mode Rejection (up to –43 dB), the 749020011A effectively suppresses common-mode noise, reducing EMI and enhancing signal stability in electrically noisy industrial environments.
Designed for –40 °C to +85 °C operation, this LAN transformer ensures long-term stability and consistent signal performance in harsh industrial and outdoor conditions.
The SMT footprint allows seamless integration with SMT RJ45 MagJacks, enabling:
Compatible with most mainstream Ethernet PHY ICs, including:
This makes it ideal for PHY reference designs, embedded Ethernet modules, and industrial controllers.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1997
Total Annual:
$30-$50 million
Employee Number:
300~600
Ecer Certification：
Verified Supplier
LINK-PP International Technology Co., Limited, founded in 1997, is a vertically integrated manufacturer specializing in Ethernet magnetic components and high-speed connectivity solutions up to 10G. With over 26 years of experience, our core products include RJ45 modular jacks, MagJacks, discrete m... LINK-PP International Technology Co., Limited, founded in 1997, is a vertically integrated manufacturer specializing in Ethernet magnetic components and high-speed connectivity solutions up to 10G. With over 26 years of experience, our core products include RJ45 modular jacks, MagJacks, discrete m...
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