New Low Voltage Protection Switch From Supertex Prevents High Transient Voltages in Ethernet Systems

Tue May 29, 2012 11:00am EDT

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  SUNNYVALE, CA, May 29 (Marketwire) -- 
Supertex, Inc. (NASDAQ: SUPX), a recognized leader in high voltage analog
and mixed signal integrated circuits (ICs), today introduced FP0030, a
20V current limiting protection device. The FP0030 can be considered as a
normally closed switch with a typical resistance of 4.5 ohms. The IC
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 700uA 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.

    "Supertex's FP0030, with its small 3-pin package and no external supplies
needed, provides Ethernet system designers a space-saving and
easy-to-layout solution," states Jimes Lei, Director of Applications
Engineering for Supertex. "The IC features low on-resistance of typically
4.5 ohms for minimal signal attenuation." 

    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 US$0.38 each for
FP0030K1-G in 1K quantities.

    About Supertex
 Supertex, Inc. is a publicly held mixed signal
semiconductor manufacturer, focused in high voltage analog and mixed
signal products for use in the medical, LED lighting, imaging,
industrial, and telecommunication industries. Supertex product, corporate
and financial information is readily available at 


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