RJ45 Ethernet MagJack Breakout

If you need to get your MagJack into a breadboard, this is for you. This board exposes all pins, LEDs, and housing with breadboard friendly spacing.

RJ45 Ethernet MagJack Breakout Product Help and Resources

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

2 Soldering

Skill Level: Rookie - The number of pins increases, and you will have to determine polarity of components and some of the components might be a bit trickier or close together. You might need solder wick or flux.
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Customer Comments

  • It creates problem on breadboard...it should be redesigned to all pins at one side..

  • Would be awesome if these were all pins along one end - the board is quite wide on the breadboards I have, and it's difficult to get access to the rows under it. (Would probably help with soldering this for newbies... like me :) )

    • Here you go!

  • Would I be able to cut this and get the same functionality as http://www.sparkfun.com/products/716 at half the price?

    • this is for the jack that has magnetic(transformers) built in to protect the chip. This board works with the mag jack. The board you referred to works with a standard jack with no magnetic. As far as I know the pin out is spaced differently.

  • I have been successfully using this with an mbed, but what are the 'gs1' and 'gs2' pins? My guess is they have something to do with a ground (shielded ground?) but the RJ45 works without those pins. Can anyone tell me what they are?

    • Yes, they are the shield over the connector. Connect them to ground. It's likely to work just fine 100% of the time without them, though.

  • I have ordered some of these, but I received other circuit. What I received came with two sm leds, a couple of resistors and caps, and does not fit the magjack http://www.sparkfun.com/commerce/product_info.php?products_id=8534 pins. It only breaks Vcc, Gnd, Tx and Rx.
    Has anybody got one of these?

  • Ditto comment about pins along one side. Any hope for a new build of these?

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