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Switch minimises voltage drop in Ethernet apps

Posted: 31 May 2012     Print Version  Bookmark and Share

Keywords:protection  switch  Ethernet 

Supertex Inc. unveils the FP0030, a 20V current limiting protection device with a typical on-resistance of 4.5Ω said to provide Ethernet system designers with a space-saving and easy-to-layout solution.

The FP0030 can be considered as a normally closed switch that starts to turn off when the voltage drop across its two terminals exceeds a nominal value of ±1.5V. In the off state, the FP0030 can withstand up to ±20V across its terminals and allow typical current of 700µA to flow through it.

The FP0030 may also be used as a resettable fuse to protect power lines against output short circuit conditions. Its fast switching speed protect the system against abrupt over current conditions.

The FP0030 is available in a three lead SOT-23 package (FP0030K1-G). The part is RoHS compliant. Samples are available from stock. Lead-time for production quantities is 4-6 weeks ARO. Pricing is Rs.19.90 ($0.38) each for FP0030K1-G in 1K quantities.

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