Passive Components


Pulse transformers for LAN ports

18 September 2013 Passive Components

TDK announced the world’s smallest SMD pulse transformers for LAN applications, with dimensions of only 3,2 x 3,2 x 2,8 mm. Their inductance is 150 µH, insertion loss in the frequency range from 100 kHz to 100 MHz is 2,5 dB, and parasitic winding capacitance is only 25 pF at 100 kHz.

The number of pulse transformers used in LAN applications is increasing in response to the raised transmission speed of Ethernet networks, namely from 100 to 1000 Mbps. In addition, several transformers are usually placed on a circuit board, so that minimised component dimensions are of crucial importance. They transmit the pulse-shaped signals at high transmission speeds and at the same time provide electrical insulation between input and output.

By applying technology that has proved its worth in the production of SMD common-mode filters, TDK was able to devise an automated winding process suitable for mass production. This reduces characteristic variations that tend to occur with manual winding, and thereby ­offers enhanced reliability and quality.

For more information contact Electrocomp, +27 (0)11 458 9000, [email protected], www.electrocomp.co.za.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

PCB connectors for power systems
Phoenix Contact Passive Components
With the new PC 6 PCB connectors with screw connection, Phoenix Contact’s classic connection technology is available with enhanced touch protection for the new pin connector pattern.

Read more...
Polymer caps with very high ripple current capability
RS South Africa Passive Components
TDK Corporation has released the B40910 series of hybrid polymer capacitors, which can handle up to 4,6 A at 100 kHz and 125°C.

Read more...
SPE connector range
Phoenix Contact Passive Components
Single Pair Ethernet (SPE) is a communication technology that realises Industry 4.0 and IIoT applications, and Phoenix Contact’s Combicon range are ideal for SPE connections.

Read more...
TDK expands MLCC series
RS South Africa Passive Components
TDK Corporation has expanded its CGA series of multilayer ceramic capacitors, currently being the highest capacitance in 100 V products for automotive applications.

Read more...
Antennas to meet all connectivity requirements
Electrocomp Telecoms, Datacoms, Wireless, IoT
Kyocera AVX RF antennas meet today’s connectivity demands in the LTE, Wi-Fi, Bluetooth, GNSS, and ISM wireless bands, available in surface mount, patch or external configurations.

Read more...
Stainless steel pushbutton enclosures
Electrocomp Enclosures, Racks, Cabinets & Panel Products
he HYPB series from Hammond is a hygienic type 4X stainless steel pushbutton enclosure designed for use in environments where regular high temperature, high-pressure washdowns are required.

Read more...
SMD varistors with huge surge current capability
Electrocomp Power Electronics / Power Management
TDK Corporation has introduced two new varistor series in SMD design, the larger of the two capable of handling a surge current of 10 000 A.

Read more...
Inductor supports temperatures up to 150°C
RS South Africa Passive Components
TDK has launched a highly durable inductor for automotive A2B applications that supports a wide temperature range of -55 up to 150°C.

Read more...
Long-range passive infrared motion sensor
Future Electronics Passive Components
Panasonic Industry (PaPIRs) recently introduced he world’s most compact long-range passive infrared motion sensor, for installation heights of up to 15 metres.

Read more...
Isolated solid state relay
Altron Arrow Passive Components
The ISO808, ISO808-1 (PowerSO-36) and ISO808Q, ISO808Q-1 (TFQFPN32) are galvanic isolated eight-channel drivers featuring a low supply current.

Read more...