C0603X123J3JAC7867 vs C0603X112J4JAC7867

Part Number	C0603X123J3JAC7867	C0603X112J4JAC7867
Category	Ceramic Capacitors	Ceramic Capacitors
Manufacturer	KEMET	KEMET
Description	CAP CER 0.012UF 25V U2J 0603	CAP CER 1100PF 16V U2J 0603
Package	Tape & Reel (TR)	Cut Tape (CT)
Series	SMD Comm U2J Flex	SMD Comm U2J Flex
Features	Low ESL, Soft Termination, Low Dissipation Factor	Low ESL, Soft Termination, Low Dissipation Factor
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Mounting Type	Surface Mount, MLCC	Surface Mount, MLCC
Package / Case	0603 (1608 Metric)	0603 (1608 Metric)
Applications	Boardflex Sensitive	Boardflex Sensitive
Tolerance	±5%	±5%
Temperature Coefficient	U2J	U2J
Size / Dimension	0.063" L x 0.031" W (1.60mm x 0.80mm)	0.063" L x 0.031" W (1.60mm x 0.80mm)
Voltage - Rated	25V	16V
Lead Spacing	-	-
Thickness (Max)	0.034\" (0.87mm)	0.034\" (0.87mm)
Ratings	-	-
Height - Seated (Max)	-	-
Capacitance	0.012 µF	1100 pF
Lead Style	-	-
Failure Rate	-	-

1. What is the difference between ceramic capacitors and electrolytic capacitors?

Polarity: Ceramic capacitors are non-polar, while electrolytic capacitors are polar.
Capacity range: Electrolytic capacitors generally offer larger capacitance values.
Stability: Ceramic capacitors are more stable, especially when the temperature changes.
Lifespan: Ceramic capacitors have a longer lifespan because there is no liquid electrolyte to dry out.
2. Can ceramic capacitors hold a charge?

Ceramic capacitors can store charge, but they have a higher leakage current than electrolytic capacitors, so they are less able to hold a charge.
3. Why do ceramic capacitors make noise?

Some types of ceramic capacitors (particularly Class 2 ceramic capacitors) produce micro-vibrations when the voltage changes due to their material properties, which in turn cause faint mechanical noise.
4. Do ceramic capacitors degrade over time?

The capacitance value of ceramic capacitors may decrease slightly over time and environmental factors, but this is usually a slow process.