K183K15X7RK5TH5 vs K183K15X7RK5UL2

Part Number	K183K15X7RK5TH5	K183K15X7RK5UL2
Category	Ceramic Capacitors	Ceramic Capacitors
Manufacturer	Vishay Beyschlag/Draloric/BC Components	Vishay Beyschlag/Draloric/BC Components
Description	CAP CER 0.018UF 200V X7R RADIAL	CAP CER 0.018UF 200V X7R RADIAL
Package	Tape & Reel (TR)	Tape & Box (TB)
Series	Mono-Kap™ K	Mono-Kap™ K
Features	-	-
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Mounting Type	Through Hole	Through Hole
Package / Case	Radial	Radial
Applications	General Purpose	General Purpose
Tolerance	±10%	±10%
Temperature Coefficient	X7R	X7R
Size / Dimension	0.157" L x 0.102" W (4.00mm x 2.60mm)	0.157" L x 0.102" W (4.00mm x 2.60mm)
Voltage - Rated	200V	200V
Lead Spacing	0.197\" (5.00mm)	0.098\" (2.50mm)
Thickness (Max)	-	-
Ratings	-	-
Height - Seated (Max)	0.260\" (6.60mm)	0.220\" (5.60mm)
Capacitance	0.018 µF	0.018 µF
Lead Style	Formed Leads	Straight
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. Do ceramic capacitors deteriorate over time?

While ceramic capacitors are relatively stable, their capacitance value may decrease slightly over time, especially under extreme environmental conditions. However, this change is usually small and will not significantly affect most applications.
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.