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Re: [Amps] Semtech SA1388?

To: "Mike" <k4gmh@arrl.net>, <amps@contesting.com>
Subject: Re: [Amps] Semtech SA1388?
From: "Steve Katz" <stevek@jmr.com>
Date: Wed, 31 Mar 2010 13:27:46 -0700
List-post: <amps@contesting.com">mailto:amps@contesting.com>
See below...


De WB2WIK/6

-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
On Behalf Of Mike
Sent: Wednesday, March 31, 2010 1:19 PM
To: amps@contesting.com
Subject: [Amps] Semtech SA1388?

Does anyone know what a Semtech "Slimpac" SA1388 rectifier is good for?
Seems too big for a small signal diode, yet may not be big enough for
power
supply use.  The case is ~2" long and 0.300" wide and has a schematic
diode
showing the anode/cathode ends.  Also, the number "6824" is printed on
the
case following the diode schematic.  Don't have a high pot tester to
find
out the breakdown voltage.

>>"SA" means "Special Assembly" and these were not standard catalog
products.  Each one, from SA01 to SA10,000+, was a custom designed
product for an OEM.  There is no catalog of what the SA's mean.  The
number 6824 is a date code, 24th week of 1968.  The "Slimpac" series are
mostly high voltage rectifier assemblies rated 500mA continuous forward
current; reverse voltage ratings could be almost anything, depending on
the number of series junctions used.  The "off the shelf" Slimpacs went
from an SCH5000 (5kV PIV) to SCH25,000 (25kV PIV), but the higher
voltage units were "longer" physically and of course contained many more
diodes!  Some "SAs" weren't even high voltage rectifiers, they could
have been zener assemblies and some of these were used in Henry
amplifiers as cathode bias zeners.
-WB2WIK/6
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