HX5008NL – PULSE

The HX5008NL, manufactured by Pulse Electronics, is a single-port Gigabit Ethernet isolation transformer module packaged in a 24-pin Small Outline Integrated Circuit (SOIC) package. This module provides galvanic isolation between the Ethernet PHY and the network interface, ensuring signal integrity and protecting sensitive circuitry from voltage transients and common-mode noise. The HX5008NL is designed to meet IEEE 802.3 standards for Gigabit Ethernet applications, supporting 1000BASE-T transmission. Key electrical specifications include a minimum isolation voltage of 1500 Vrms, insertion loss typically less than 1.0 dB across the 1-100 MHz frequency range, and return loss exceeding -18 dB. The module incorporates common mode chokes to further suppress unwanted noise and improve Electromagnetic Compatibility (EMC) performance. It is typically used in network interface cards (NICs), embedded systems, and industrial Ethernet applications.