Forums

zener!

Started by John Larkin October 15, 2021
https://www.digikey.com/en/products/detail/microchip-technology/JANS1N4102DUR-1-TR/13995295

Somebody must buy them.

-- 

If a man will begin with certainties, he shall end with doubts, 
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon
On 10/15/2021 1:01 PM, John Larkin wrote:
> https://www.digikey.com/en/products/detail/microchip-technology/JANS1N4102DUR-1-TR/13995295 > > Somebody must buy them. >
Nicely priced, John!                             Mikek -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
On Friday, October 15, 2021 at 6:01:14 PM UTC, John Larkin wrote:
> https://www.digikey.com/en/products/detail/microchip-technology/JANS1N4102DUR-1-TR/13995295 > > Somebody must buy them. > > -- > > If a man will begin with certainties, he shall end with doubts, > but if he will be content to begin with doubts he shall end in certainties. > Francis Bacon
Avalanche 8.7 volts, seems odd, probably associated with a one design or application. (input clamp?). Must be some extant military gear with support contract, keeping the (sub)contractor in business. $140 for a mil-spec part,.. I dunno, haven't kept up on these, but honestly isn't a surprise to me... =RS
> Avalanche 8.7 volts, seems odd, probably associated with a one design or > application. (input clamp?). > Must be some extant military gear with support contract, keeping the > (sub)contractor in business. > $140 for a mil-spec part,.. I dunno, haven't kept up on these, but honestly isn't > a surprise to me... > > =RS
..because.. (for newbies) for mil-spec you're also paying for testing, documentation, and traceability all attached to that part. (Producing the part itself is just a small part! = RS
On Friday, October 15, 2021 at 11:21:28 AM UTC-7, Rich S wrote:
> On Friday, October 15, 2021 at 6:01:14 PM UTC, John Larkin wrote: > > https://www.digikey.com/en/products/detail/microchip-technology/JANS1N4102DUR-1-TR/13995295 > > > > Somebody must buy them. > > > > -- > > > > If a man will begin with certainties, he shall end with doubts, > > but if he will be content to begin with doubts he shall end in certainties. > > Francis Bacon > Avalanche 8.7 volts, seems odd, probably associated with a one design or > application. (input clamp?). > Must be some extant military gear with support contract, keeping the > (sub)contractor in business. > $140 for a mil-spec part,.. I dunno, haven't kept up on these, but honestly isn't > a surprise to me...
Perhaps they have some special alien metal (anti-Lithium?) for 8.7V, but for us civilian 4.3V would be nice.
On Fri, 15 Oct 2021 11:21:24 -0700 (PDT), Rich S
<richsulinengineer@gmail.com> wrote:

>On Friday, October 15, 2021 at 6:01:14 PM UTC, John Larkin wrote: >> https://www.digikey.com/en/products/detail/microchip-technology/JANS1N4102DUR-1-TR/13995295 >> >> Somebody must buy them. >> >> -- >> >> If a man will begin with certainties, he shall end with doubts, >> but if he will be content to begin with doubts he shall end in certainties. >> Francis Bacon > >Avalanche 8.7 volts, seems odd, probably associated with a one design or >application. (input clamp?). >Must be some extant military gear with support contract, keeping the >(sub)contractor in business. >$140 for a mil-spec part,.. I dunno, haven't kept up on these, but honestly isn't >a surprise to me... > >=RS
I need an 8.7 v 2% zener as a clamp, to protect a $300 distributed amp chip rated for 9 volts abs max. Parts are hard to get lately. I'll go for 5% and pray. -- If a man will begin with certainties, he shall end with doubts, but if he will be content to begin with doubts he shall end in certainties. Francis Bacon
fredag den 15. oktober 2021 kl. 20.01.14 UTC+2 skrev John Larkin:
> https://www.digikey.com/en/products/detail/microchip-technology/JANS1N4102DUR-1-TR/13995295 > > Somebody must buy them. >
right on the middle of the page Series: Military, MIL-PRF-19500/435
On Fri, 15 Oct 2021 11:24:12 -0700 (PDT), Rich S
<richsulinengineer@gmail.com> wrote:

> >> Avalanche 8.7 volts, seems odd, probably associated with a one design or >> application. (input clamp?). >> Must be some extant military gear with support contract, keeping the >> (sub)contractor in business. >> $140 for a mil-spec part,.. I dunno, haven't kept up on these, but honestly isn't >> a surprise to me... >> >> =RS > >..because.. (for newbies) >for mil-spec you're also paying for testing, documentation, >and traceability all attached to that part. (Producing the part itself is >just a small part! > >= RS
They are robbing people like military and semiconductor copy-exact users who can't easily change things. It's a common thing to do lately. -- If a man will begin with certainties, he shall end with doubts, but if he will be content to begin with doubts he shall end in certainties. Francis Bacon
fredag den 15. oktober 2021 kl. 20.43.17 UTC+2 skrev John Larkin:
> On Fri, 15 Oct 2021 11:24:12 -0700 (PDT), Rich S > <richsuli...@gmail.com> wrote: > > > > >> Avalanche 8.7 volts, seems odd, probably associated with a one design or > >> application. (input clamp?). > >> Must be some extant military gear with support contract, keeping the > >> (sub)contractor in business. > >> $140 for a mil-spec part,.. I dunno, haven't kept up on these, but honestly isn't > >> a surprise to me... > >> > >> =RS > > > >..because.. (for newbies) > >for mil-spec you're also paying for testing, documentation, > >and traceability all attached to that part. (Producing the part itself is > >just a small part! > > > >= RS > They are robbing people like military and semiconductor copy-exact > users who can't easily change things.
also stops other people buying the, I assume, limited number of parts is of the exact type and that has all the paperwork
On Fri, 15 Oct 2021 11:01:04 -0700, John Larkin
<jlarkin@highland_atwork_technology.com> wrote:

>https://www.digikey.com/en/products/detail/microchip-technology/JANS1N4102DUR-1-TR/13995295 > >Somebody must buy them.
The JAN (Joint Army Navy) part number is the tell. Supporting old equipment. Typical lifecycles are 20 to 40 years. Joe Gwinn