Adam Field wrote:
>
> This is for capacitor testing of small boxed film parts. The reason we
> aren't using solder is because we are measuring specs with our LCR
> bridge up to 100KHz which needs the parts in a special fixture.
>
> A bread board is nice for a number of reasons, one of them being
> pre-made. I may have to go with a PCB and either socket pins or IC
> sockets spaced appropriately.
>   
I had to test ceramic capacitors at 125 C and 50KV once. I used two 
insulating pillars on the metal frame, stacked, and springy clips to 
hold the caps.

I think about 100 caps (10 rows of 10 col) per tray.

Discharging afterwards was problematic. Due to Piezo effect you had to 
leave discharge resistor connected for many minutes. 

They where also tested at -25 or -50, I can't remember. The oven was 
cycled from 125 C by to -xx C by blasting in CO2. The oven and CO2 valve 
controlled by timer / thermostat I cobbled together.


I remember I had difficulty getting suitable insulating pillars.
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist