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You may or may not need to reduce the capacitance: modern multi-layer ceramic capacitors have very high capacitance values, allowing replacement of many other t
by Arizhel 10y ago
You may or may not need to reduce the capacitance: modern multi-layer ceramic capacitors have very high capacitance values, allowing replacement of many other types of capacitors. It used to be that a 10uF capacitor was something you'd definitely need an electrolytic for (if not a tantalum), but now you can get that in a small surface-mount MLCC ceramic capacitor. Ceramics aren't limited to the picofarad ranges any more by a long shot.
- Animats 10y agoTrue. I have some 1uF surface mount ceramic caps just in for a project of mine. I'm tempted to use this 220uF cap [1] to replace the only electrolytic on the board. [1] http://www.digikey.com/product-detail/en/taiyo-yuden/JMK325ABJ227MM-T/587-3980-1-ND/4950534 http://www.digikey.com/product-detail/en/taiyo-yuden/JMK325A...
- hatsunearu 10y agoJust watch out for leakage.
- andlier 10y agoJust be sure to read the datasheet carefully. That particular capacitor is only ~120uF at typical 3.3V DC voltage. At 5V DC (which isn't really advisable for a 6.3V rated cap) it is only 88uF.
- friendzis 10y agoMLCC caps work for low voltages and frequencies, but experience sharp drop in capacitance when voltage or frequency are increased