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RJ45 connector (with magnetics) for MicroChip ENC28J60

Posted on Friday, August 24th, 2007
Just got done chatting with a new customer in Mumbai, India. He was looking for magnetics (impedance matching transformers, 1:1 turns ratio, both TX and RX) for the ENC28J60 Stand-Alone Ethernet Controller with SPI Interface From Microchip. See datasheet at:
http://ww1.microchip.com/downloads/en/DeviceDoc/39662b.pdf

Microchip's ENC28J60 is a 28-pin, 10BASE-T stand alone Ethernet Controller with on board MAC & PHY, 8 Kbytes of Buffer RAM and an SPI serial interface. With a small foot print package size the ENC28J60 minimizes complexity, board space and cost. Target applications include VoIP, Industrial Automation, Building Automation, Home Control, Security and Instrumentation.

Well, this customer was in luck because i personally worked with Microchip to specify the best magnetics solution for their chip. Ultimately, thye decided to go with a MagJack 08B0-1X1T-06-F1 solution from BEL, or Bel Fuse Inc. The MagJack is an RJ45 connector with integrated 10/100 base T magnetics, four 75 ohm termination resistors and a 1000 picofarad, 2000 volt capacitor. The device is completely shielded for enhanced EMI performance, and has two ultra-bright LED indicators for link and activity.

You can take a look at this 08B0-1X1T-06-F MagJack from Bel Fuse in action on the Ethernet PICtailâ„¢ Daughter Board by taking a look at this link:
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en025831

This MagJack (formerly called Bel Mag from Bel Fuse) is a commercial temp device, meaning it works properly from 0 to 70 degrees C. There is also an industrial or extended temp option, that would be the 08B0-1X1T-36-F and you can see that part in action on the Microchip Ethernet PICtail Plus Daughter Board at this link: http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en027750

Both of these Bel Fuse MagJack (integrated connector modules) can be purchased from Arcadian Sales, and they are in stock, here are the links to their respective web pages:

http://arcadiansales.com/searchbypartnumber_details.php?part_number=08B01X1T06F1

http://arcadiansales.com/searchbypartnumber_details.php?part_number=08B01X1T36F1

As always, if you have any questions, don't hesitate to contact me at mikec@arcadiansales.com

Regards,
Mike Crudele
ARCADIAN SALES
www.arcadiansales.com

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