Signal isolation at the
heart of Ethernet
SMD single-port Ethernet signal transformers — IEEE 802.3 compliant signal isolation for servers, switches, routers and networking equipment, with a complete line from 10BASE-T to 10GBASE-T.
Single-port Ethernet transformers in two packages
From standard Gigabit to Multi-Gig applications, in the 3232 and 4532 SMD package series.
3232 Series
The most compact package, suited to space-constrained networking modules and higher port-density designs, supporting 10/100/1000BASE-T.
4532 Series
The main series, with a wider choice of inductance values, covering 1000BASE-T and 2.5G / 5G / 10GBASE-T Multi-Gig applications.
| Part No. | Size (mm) | Inductance | Insertion Loss | Turn Ratio | Hi‑Pot | Application | Datasheet |
|---|---|---|---|---|---|---|---|
| MAT3232T-151-G1-6L | 3.2 × 3.2 | 150 µH | 2.5 dB @ 0.1–100 MHz | 1CT:1CT | 1500 Vrms | 10/100/1000BASE‑T | |
| MAT4532T-121-G10-6L | 4.5 × 3.2 | 120 µH | 1.5 dB @ 0.1–500 MHz | 1CT:1CT | 1500 Vac | 10GBASE‑T | |
| MAT4532T-181-G5-6L | 4.5 × 3.2 | 180 µH | 1.5 dB @ 0.1–250 MHz | 1CT:1CT | 1500 Vac | 1000 / 2.5G / 5GBASE‑T | |
| MAT4532T-201-G1-6L | 4.5 × 3.2 | 200 µH | 1.5 dB @ 0.1–100 MHz | 1CT:1CT | 1500 Vac | 10/100/1000BASE‑T |
Inductance measured at DC bias 8 mA @ 100 kHz (Min.) · insertion loss and hi-pot are Max. values; measurement bandwidth varies by part number · click a part number for full specifications, or download the datasheet PDF directly.
Moritek
4.5×3.2mm
120 µH
From discrete components to multi-port modules
The discrete single-port design gives customers full layout freedom — mount individual parts on your own board, or integrate them into multi-port LAN magnetics modules.
Module photos illustrate discrete single-port parts integrated into modules; actual specifications and port counts can be customised.
A new generation of SMD single-port transformers
Automated winding with a discrete single-port design — compared with hand-wound toroidal cores and bulky integrated modules, it wins on consistency, layout flexibility and manufacturability.
Automated winding · consistent quality
Automated winding and automated electrode termination give consistent part-to-part characteristics and stable yield, without the wider tolerances of hand-wound toroidal cores.
Discrete single-port · layout freedom
Replacing bulky LAN modules that pack the transformer and common-mode choke together, the discrete approach frees up routing and even allows double-sided placement for higher port density.
Miniaturised · fully SMT
3.2×3.2 and 4.5×3.2 mm SMD packages suit automated SMT lines, saving both board space and assembly cost.
Multi‑Gig Ready
Covering 1000BASE-T to 10GBASE-T for next-generation high-speed networking and PoE applications.