The TDA149 RJ45 Transformer Through Hole RoHS manufactured by TNK is a high efficiency, low profile, RoHS compliant, bi-directional Ethernet transformer. It is designed to meet the isolation, distortion, frequency response, and signal integrity requirements for Ethernet applications. It provides up to 1.5 kVDC platform isolation and up to 4.0 Vpp common mode voltage. It is a low profile, low power, low cost, through-hole mount allowing a flush fit. The TDA149 has two primary and secondary windings with an interwinding capacitance of less than 33 pF for maximum isolation. It is shielded for outstanding EMI performance and meets IEEE802.3 compliant.