38FD3745-F

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Film Capacitors, also known as plastic film capacitors, polyester capacitors, mylar capacitors, synthetic film capacitors, f-capacitors or film foil capacitors, are small electronic components used widely in electronics products to store energy. They are increasingly used as substitute for ceramic capacitors due to their excellent electrical characteristics and stability, durability, flexibility and relatively low cost. The 38FD3745-F is one such film capacitor developed by a well-known capacitor manufacturer for various electronics applications.

The 38FD3745-F is a three-terminal film capacitor designed for general electronic use. It features low ESR and ESR leakage, high temperature stability, high insulation resistance, and low DC leakage current. It can operate in temperatures ranging from -55°C to +105°C, and in relative humidity range of 5-95%. The 38FD3745-F has a dielectric constant of 6,000 (at 10 kHz, 27°C). It has a 10,000 hour operational life at a temperature of 105°C and is lead corrosion-resistant. It is also UL approved.

The 38FD3745-F is generally used in capacitive coupling, bypassing, and decoupling applications. It is commonly used in automotive electronics, computer and notebook peripherals, digital home appliances, cordless phones and Ethernet products. Its capacitance range is from 33pF (3V) to 1.5μF (50V). It is surface mount or through-hole mountable. It is ideal for use in high-end consumer electronics, such as DVD players, digital cameras, and portable media players.

The working principle of film capacitors is essentially the same as that of ceramic capacitors. Like any other capacitor, a film capacitor stores energy in the form of an electric field. When a voltage is applied to the two terminals of a film capacitor, it stores energy is stored in the electric field between the dielectric films. The dielectric films are coated with metal electrodes, which serve as the two electrical terminals. The dielectric material of a film capacitor is usually comprised of polyester or polyethylene. The dielectric material acts like an insulator and prevents the buildup of large electric currents between the two electrodes.

The dielectric material is highly resistant to heat and moisture, which makes film capacitors quite durable and reliable. The 38FD3745-F film capacitor is constructed with polyethylene film, features low ESR and ESR leakage, high temperature stability, high insulation resistance, and low DC leakage current. Additionally, the 38FD3745-F is lead corrosion-resistant, making it suitable for use in a variety of applications where frequent temperature changes or moisture could cause capacitors to break down.

In summary, the 38FD3745-F is a three-terminal film capacitor designed for general electronic use. It is ideal for use in a variety of applications where reliability and durability are needed. It has a dielectric constant of 6,000 (at 10 kHz, 27°C) and operates in temperatures ranging from -55°C to +105°C. It is constructed with polyethylene film, and features low ESR and ESR leakage, high temperature stability, high insulation resistance, and low DC leakage current. The 38FD3745-F is UL approved and lead corrosion-resistant, making it suitable for use in a variety of applications where frequent temperature changes or moisture could cause capacitors to break down.

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