1812Y5000394KJTWS2 vs 1111Y5000330JQT

Part Number	1812Y5000394KJTWS2	1111Y5000330JQT
Category	Ceramic Capacitors	Ceramic Capacitors
Manufacturer	Knowles Syfer	Knowles Syfer
Description	CAP CER 0.39UF 630V X7R 1812	CAP CER HIGH Q 1111
Package	1812 (4532 Metric)	-
Series	StackiCap?, FlexiCap?	*
Features	Soft Termination	High Q, Low Loss, Soft Termination
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Mounting Type	Surface Mount, MLCC	Surface Mount, MLCC
Package / Case	1812 (4532 Metric)	1111 (2828 Metric)
Applications	Boardflex Sensitive	RF, Microwave, High Frequency, Boardflex Sensitive
Tolerance	±10%	±5%
Temperature Coefficient	X7R	C0G, NP0 (1B)
Size / Dimension	0.177" L x 0.126" W (4.50mm x 3.20mm)	0.110" L x 0.110" W (2.79mm x 2.79mm)
Voltage - Rated	500V	500V
Thickness (Max)	0.126" (3.20mm)	0.070" (1.78mm)
Capacitance	0.39µF	33pF

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 I replace film capacitors with ceramic capacitors?

In many cases, ceramic capacitors can be used to replace film capacitors, especially when smaller size and lower cost are required. However, it is important to note that ceramic capacitors may have different temperature coefficients and self-healing characteristics, which may affect performance in a specific application.
3. 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.
4. Which side of a ceramic capacitor is the positive side?

Ceramic capacitors are non-polarized, so there is no positive or negative side.