3.3uF 250V Encased Metallized Polyester Film Capacitor

The 3.3uF 250V Encased Metallized Polyester Film Capacitor emerges as a cornerstone in the intricate world of electronic components.The 3.3uF 275V Encased Metallized Polyester Film Capacitor’s precise capacitance, voltage rating, and construction with metallized polyester film make it a reliable and versatile choice for a myriad of electronic applications. As we witness the continuous evolution of capacitor technology, it’s clear that these components are not just passive elements but active contributors to the advancements that shape our technological landscape. The 3.3uF 250V capacitor, with its encased metallized polyester film, stands tall as a beacon of reliability and precision, powering the devices that define our modern way of life.

Category Metallized polyester capacitors

Product Description

3.3uF 250V Encased Metallized Polyester Film Capacitor Specifications:

Dielectric	Polyester film
Electrodes	Vacuum evaporated metal
Coating	Encapsulated in reinforced flame retardant plastic case sealed with epoxy resin meeting the requirement of UL 94V-0
Leads	Radial leads of tinned wire
Reference standard	IEC 384-2 grade 1; SJ/T 10873-1996
Climatic catalogue	40/100/21(From 85°C up to 105°C with derating voltage 1.25%/°C)
Capacitance versus rated voltage (UR)	0.001μF-6.8μF50/100VDC 0.001μF-6.8μF/250VDC 0.001μF-2.2uF/400VDC 0.001uF-1.5uF/630VDC
Capacitance tolerance	M = ±20%, K = ±10%, and J = ±5%
Dissipation factor	C≤1.0uF DF≤0.8% C>1.0uF DF≤1.0% (at 20°C, 1KHz)
Voltage-proof	1.6*UR Unit:VDC (5s at 20°C)
Insulation resistance	C≤0.33µF, IR≥15000MΩ, C>0.33µF, IR*C≥3,000s (1 minute at 20°C and RH≤65%)
Endurance	1000 hours with 125% of rated voltage at 85°C. After the test: ΔC/C ≤8%; ΔDF ≤0.30%(C>1uF);ΔDF ≤0.50%(C≤1uF); IR ≥0.5% of the specified value (20°C, 1kHz)

The capacitor is encased in a metallized polyester film, providing insulation and protection. This design enhances the durability and reliability of the capacitor in various operating conditions.

The 3.3uF 250V Encased Metallized Polyester Film Capacitor plays a pivotal role in electronic circuits, offering a range of benefits that contribute to the overall functionality and performance of electronic devices:

1.Filtering and Decoupling: Capacitors are often used to filter out unwanted noise and stabilize voltage in electronic circuits. The 3.3uF 250V capacitor excels in filtering applications, ensuring a clean and stable power supply to sensitive components.

2.Timing and Frequency Control: Capacitors, based on their capacitance values, influence the timing and frequency of electronic circuits. In applications such as oscillators and timers, the 3.3uF 250V capacitor aids in precise control, contributing to the accuracy of timing-based functions.

3.Energy Storage: Capacitors store electrical energy and release it when needed. The 3.3uF 250V capacitor serves as a reliable energy storage device, supplying quick bursts of energy to meet the demands of various electronic components.

4.Coupling Capacitor: In amplifier circuits, coupling capacitors allow the passage of AC signals while blocking DC components. The 3.3uF 250V capacitor, with its suitable capacitance and voltage rating, facilitates effective signal coupling in audio and amplifier applications.

The encased metallized polyester film in the construction of the capacitor brings several advantages as below：

1.High Dielectric Strength: Metallized polyester film capacitors exhibit high dielectric strength, making them suitable for applications requiring resistance to high voltages.

2.Stability and Reliability: The metallized polyester film provides excellent stability and reliability in varying environmental conditions. This makes the capacitor a robust choice for electronic devices operating in different temperature and humidity ranges.

3.Low Dissipation Factor: The low dissipation factor of metallized polyester film capacitors contributes to their efficiency by minimizing energy losses during operation. This characteristic is particularly beneficial in applications where energy conservation is critical.

4.Self-Healing Properties: Metallized polyester capacitors have self-healing properties, meaning they can recover from minor defects, extending their operational lifespan and enhancing overall reliability.