No it is because solid aluminium caps were too expensive to produce (so for the customer as well). They did not sell as much as intended and thus they were discontinued. I recall the Philips notice that they would quit production. When a product is gone then some other product, be it better or worse, will fill the gap. This seems logical. Aluminium polymer capacitors are more in the direction of high current high value (1000, 2200 µF etc.) application for let's say computer motherboards. I have never seen a value higher than 68 µF and a voltage rating higher than 40V in SAL caps.
I think aluminium polymer caps were not even invented yet when solid aluminium caps were made.
I think aluminium polymer caps were not even invented yet when solid aluminium caps were made.
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Sorry I meant that they were eventually replaced by aluminium polymer caps. My old
employer IBM started using Sanyo OS-CON's in the 1990,s. Solid Aluminium caps were still
being made by Vishay I believe up until 2015 but I dont know what they were used for.
employer IBM started using Sanyo OS-CON's in the 1990,s. Solid Aluminium caps were still
being made by Vishay I believe up until 2015 but I dont know what they were used for.
The then Sanyo OS-CON with TCNQ electrolyte were officially not polymer but the now Panasonic OS-CON are. I still have new Sanyo OSCON on tape 🙂
Measuring the Sanyo OS-CON with TCNQ found extremely low leakage even with reverse voltage. Can't find much information but seems Panasonic put the name on another technology and caution about leakage and reverse voltage. Sanyo OS-CON) may have been made by another company (SUNCON?).
Yes it is written one post before yours 🙂 Panasonic OS-CON does not even resemble the original Sanyo OS-CON. They just used the reputation and name of Sanyo OS-CON that were produced by eh... Sanyo.
The nice thing of original OS-CON was/is the epoxy sealed lead wires (in some series like SP made of real copper too, yeah!).
The nice thing of original OS-CON was/is the epoxy sealed lead wires (in some series like SP made of real copper too, yeah!).
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I designed in those SAL caps as bulk decoupling cap for a pcb that was used in a communication system for the Thailand railway. This was around the early 90’s. The contractor had to service the system for 20 years. Since these pcbs were put in drop boxes along the rail line, they required industrial grade components and pcbs were all conformal coated. The jungle is hard on electronics.
Good story. I only now noticed the remark in the 128 SAL-RPM datasheet that coating the caps is detrimental…Why?
As I remember they had orange epoxy coating, similar to a regular tant.
I read that in the Vishay spec, can't remember if that was an issue with the Philips parts. Who knows, could have masked them off in the mfg conformal coating process. Would be interested to know if the system is still running?
Want another Thailand story. The original fibre cable was chewed by the monkeys so I they had to replace it with I assume a cable that was sheathed in metal. A few of them got to go since we had crews go to installed the cables. Brought their Japanese fibre fusing machines (NTT?) & slicing gear with them.
I read that in the Vishay spec, can't remember if that was an issue with the Philips parts. Who knows, could have masked them off in the mfg conformal coating process. Would be interested to know if the system is still running?
Want another Thailand story. The original fibre cable was chewed by the monkeys so I they had to replace it with I assume a cable that was sheathed in metal. A few of them got to go since we had crews go to installed the cables. Brought their Japanese fibre fusing machines (NTT?) & slicing gear with them.
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