If you like Adafruit’s PART FINDER FRIDAY you’re going to LOVE Dangerous Prototypes’s Partlist Wednesday! Here is “Ceramic capacitors”…
Every Wednesday we highlight a component from the updated partlist. This week: surface mount ceramic capacitors. 0603 Smd Led
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Ceramic capacitors are cheaper than aluminum and tantalum SMD caps, but come in smaller values. Typical values are in the pF to 1uF range, but we’ve noticed some 2uF+ ceramic caps at Mouser recently. Most have a maximum rating between 25 and 50volts.
Unlike electrolytic capacitors, ceramic caps are unpolarized. There’s no + or – side, they can’t go in backwards on accident. Our favorite packages are 0805 and 0603. We recently standardized on the smaller 0603 because it can be 30-50% cheaper than 0805.
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I think it would be important to add dielectric type to the part finder chart.
A 1uF 6.3V Y5V capacitor used in 5V application could have an effective capacitance of 300nF (and that is assuming room temperature.)
Ceramics (all dielectrics except NPO/C0G) lose capacitance with applied voltage and change in temperature.
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