C0603X123J3JAC7867 vs C0603X162J4JAC7867

Part Number	C0603X123J3JAC7867	C0603X162J4JAC7867
Category	Ceramic Capacitors	Ceramic Capacitors
Manufacturer	KEMET	KEMET
Description	CAP CER 0.012UF 25V U2J 0603	CAP CER 1600PF 16V U2J 0603
Package	Tape & Reel (TR)	Tape & Reel (TR)
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	1600 pF
Lead Style	-	-
Failure Rate	-	-

1. Why are ceramic capacitors better?

Small size: suitable for high-density circuit board design.
Good temperature resistance: can work over a wide temperature range.
High reliability: no electrolyte, so it is not easy to age.
Good frequency response: suitable for high-frequency applications.
Low ESR: low equivalent series resistance, which helps to improve efficiency.
2. Does the voltage of ceramic capacitors matter?

Voltage ratings are critical to ensure safe operation. Using a capacitor below the rated voltage may cause premature failure; using a capacitor above the rated voltage may cause immediate damage.
3. Can ceramic capacitors be used in AC?

Ceramic capacitors are well suited for AC circuits because they have good frequency response characteristics and low losses.
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.