capacitors
Differences
This shows you the differences between two versions of the page.
| capacitors [2016/11/25 12:01] – external edit 127.0.0.1 | capacitors [2022/10/13 09:30] (current) – Jan Forman | ||
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| + | ====== Japanese Manufacturers ====== | ||
| + | Very good, but can be faked. | ||
| + | ^ Marking ^ Brand ^ | ||
| + | | Empty rectangle | Chemi-Con | | ||
| + | | KZE, KZJ, KZG | Chemi-Con | | ||
| + | | [M] | Panasonic | | ||
| + | | Rubycon | Rubycon | | ||
| + | | Sanyo | Sanyo | | ||
| + | | Nichicon | Nichicon | | ||
| + | |||
| + | ====== Taiwan Manufacturers ====== | ||
| + | ^ Marking ^ Brand ^ | ||
| + | | Teapo | Teapo | | ||
| + | |||
| + | ====== Lifespan ====== | ||
| + | The normal lifespan of a non-solid electrolytic capacitor of consumer quality, typically rated at 2000 h/85 °C and operating at 40 °C, is roughly 6 years. It can be more than 10 years for a 1000 h/105 °C capacitor operating at 40 °C. Electrolytic capacitors that operate at a lower temperature can have a considerably longer lifespan. | ||
| + | |||
| + | ^ Nominal Value ^ 105°C ^ 2 000h ^ 95°C ^ 85°C ^ | ||
| + | | Real temp | 95°C | 4 000h | 2 000h | - | | ||
| + | | Real temp | 85°C | 8 000h | 4 000h | 2 000h | | ||
| + | | Real temp | 75°C | 16 000h | 8 000h | 4 000h | | ||
| + | | Real temp | 65°C | 32 000h | 16 000h | 8 000h | | ||
| + | | Real temp | 55°C | 64 000h | 32 000h | 16 000h | | ||
| + | | Real temp | 45°C | 128 000h | 64 000h | 32 000h | | ||
| + | |||
| + | ====== Polymer ====== | ||
| + | This rule characterizes the change of thermic polymer reactions speed within the specified degradation limits. According to this formula the theoretical expected service life of a 2000 h/105 °C polymer capacitor, which is operated at 65 °C, can be calculated (better estimated) with about 200,000 hours or approximately 20 years. | ||
capacitors.txt · Last modified: 2022/10/13 09:30 by Jan Forman