Hex-FET's and loads

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Article #2759

#2759

From: Jeff Lindstrom
Date: Sat, 11 Apr 1992 11:11

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C>The reason they say this is it may build up a charge on the
C>internal capacitors that exceed it's dielectric strength and
C>internal voltage limits.  thus it would SELF destruct.

  Yeah... right.  HexFETs should not be run without a load for the same reason power BJTs (regular Bipolar Junction Transistors) should not be run without a load.  Driving the transistor into high conductivity with no load to drop the voltage vastly increases the power it has to dissipate, causing the junction temperatures to exceed allowable limits.

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Jeff Lindstrom
Internet: Jeff.Lindstrom@ofa123.fidonet.org
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Path: arc1-ca.pugleaf.net!sparky!uunet!news.claremont.edu!ucivax!ofa123!Jeff.Lindstrom
From: Jeff.Lindstrom@ofa123.fidonet.org (Jeff Lindstrom)
Newsgroups: sci.electronics
Subject: Hex-FET's and loads
Message-ID: <9729.29E7F594@ofa123.fidonet.org>
Date: Sat, 11 Apr 92 04:11:20 PDT
Organization: Universal Electronics Inc. (Public access BBS)
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