Würth Elektronik WE-STST Super Tiny Signal Transformers for LAN interfaces

Würth Elektronik’s WE-STST Super Tiny Signal Transformers for LAN interfaces feature a maximum component height of 2.9 mm and can be used in up to 1000Base-T applications with at least 350 µH inductance.

The signal transformers are suitable for all applications in which small component size and good electronic parameters are paramount. In contrast to conventional transformers, which usually consist of toroidal ferrites in plastic housings, the Super Tiny Signal Transformers are manufactured completely by machine. This enables the dimensions to be kept small, at 4.7 x 3.22 x 2.9 mm, with an insulation voltage of 1500 V/1 min.

The transformers are available in four versions for different applications. The first version with 350 µH is suitable for LAN applications with data rates up to 1000 Mbps. The version with 120 µH features good signal integrity at high frequencies and is therefore suitable for 10 Gigabit Ethernet applications or for Single Pair Ethernet with data rates up to 1000 Mbps. Further versions with 300 or 2000 µH are suitable for ultrasonic sensor applications and as transformers for the G.fast standard with a transmission ratio of 1:4.5.