TVS used as a zener
in [Design]
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From: Joel Koltner on 21 Apr 2010 23:15 "John Larkin" <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in message news:s3evs5d3j9n01i285ohq0o6pav2b7413b5(a)4ax.com... > A transzorb is just a big sloppy zener. Except the bidirectional ones > are two big zeners. I've been told a significant difference is that transzorbs are generally designed to fail short-circuit whereas one typically expects a Zener to fail open-circuit...
From: mook johnson on 22 Apr 2010 00:42 "Joel Koltner" <zapwireDASHgroups(a)yahoo.com> wrote in message news:ubPzn.386506$Hq1.67880(a)en-nntp-04.dc1.easynews.com... > "John Larkin" <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in > message news:s3evs5d3j9n01i285ohq0o6pav2b7413b5(a)4ax.com... >> A transzorb is just a big sloppy zener. Except the bidirectional ones >> are two big zeners. > > I've been told a significant difference is that transzorbs are generally > designed to fail short-circuit whereas one typically expects a Zener to > fail open-circuit... I've popped a few different zeners and they fail shorted every time unless I have enough juice to bend the leads the opposite way they were installed. :)
From: PeterD on 22 Apr 2010 07:46
On Wed, 21 Apr 2010 20:15:36 -0700, "Joel Koltner" <zapwireDASHgroups(a)yahoo.com> wrote: >"John Larkin" <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in message >news:s3evs5d3j9n01i285ohq0o6pav2b7413b5(a)4ax.com... >> A transzorb is just a big sloppy zener. Except the bidirectional ones >> are two big zeners. > >I've been told a significant difference is that transzorbs are generally >designed to fail short-circuit whereas one typically expects a Zener to fail >open-circuit... I suspect if it failed to short circuit, the failure would be temporary... <bg> |