7490140123B PoE LAN Transformer 10/100 Base-T with 350µH inductance
Brand Name:LINK-PP
Certification:RoHS Compliant, REACH Compliant
Model Number:7490140123B
Minimum Order Quantity:50pcs
Delivery Time:1 day
Payment Terms:L/C, D/A, D/P, T/T, Western Union
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Location:
Huizhou Guangdong China
Address:
NO54 South Jinhu Road ChenJiang Town Zhongkai DISTRICT Huizhou 516229 CHINA
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within 39 hours
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Product Details
Overview of 7490140123B SMT Transformer:
The 7490140123B is a high-performance 10/100 Base-T Surface-Mount (SMT) LAN transformer designed for industrial and automotive Ethernet applications. With a robust 4.5 kV isolation voltage, compact SMT footprint, and 350 µH inductance for EMI suppression, it delivers reliable signal integrity in harsh environments. This transformer complies with IEEE 802.3 standards, supports a 1:1 turns ratio, and operates efficiently from -40°C to +85°C, making it ideal for switches, routers, PLCs, and IoT systems.
LINK-PP offers a high-quality, fully compatible replacement for
this model.
Please contact us to request the datasheet.
Key Features
✔ High-Speed Ethernet – Supports 10/100 Base-T standards (up to 100 Mbps) with 1:1 turns ratio (±5% tolerance) for precise signal coupling.
✔ Robust Isolation – 4.5 kV isolation voltage (1 min, primary to secondary) ensures safety in
high-voltage environments.
✔ Industrial Durability – Operates from -40°C to +85°C, ideal for harsh industrial and automotive applications.
✔ Compact SMT Design – Surface-mount package (17.1mm × 14.75mm × 8.65mm).
✔ Integrated EMI Suppression – With 350 µH inductance minimizes signal distortion.
✔ Broad Compatibility – Works with major Ethernet ICs (e.g., Microchip, Texas
Instruments) and protocols (EtherCAT, PROFINET).
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | 7490140123B |
| Mounting Type | Surface Mount (SMT) |
| Ports | 1 |
| DC Resistance (Max) | 1300mΩ (transformer side) |
| Isolation Voltage | 4.5 kV (RMS, 1 min) |
| Inductance | 350 µH |
| Standards Compliance | IEEE 802.3u/ab/af/at/bt, RoHS |
7490140123B Datasheet-Recommended Land Pattern:
7490140123B Datasheet-Schematic:
7490140123B PoE LAN Transformer 10/100 Base-T with 350µH inductance
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