B32914A3105M189 Capacitors

Film capacitors are small, non-electrolytic units typically used for pulse shaping, high-speed signals, energy storage, and other power supply circuit applications. The B32914A3105M189 is a film capacitor manufactured by EPCOS, one of the leading electronic suppliers.

This particular model is an axial lead cap, made of a polyester film, and tin plated copper as the electrode material. It is typically used in high electrical environments, specifically in switching power supplies, home electronics, and industrial control systems. It can also be used for removing noise in audio systems, parasitic oscillation suppression, and for general filtering purposes.

The B32914A3105M189 has a Capacitance of 3.3 µF and a rated Voltage of 250V. The capacitor is also UL approved, and features a temperature range between –25 °C and +105 °C. Additionally, it has a dielectric strength of 3,750 VAC, which ensures that it can work reliably in high-voltage electrical fields.

When it comes to the working principle, film capacitors work in a simple way by collecting and storing electrical energy. Fundamentally, they consist of two metal plates, each of which is coated with a thin film dielectric material. The dielectric material stores the charges and helps to keep them separated. When a voltage is applied to the plates, electrons flow from the negative plate to the positive plate, causing the remaining charge to build up on each plate. The voltage on each plate will remain steady until the capacitor is discharged. This is the basic principle of how a film capacitor works, although the specific circuitry and design of each individual product will vary.

The B32914A3105M185 is a reliable and cost-effective film capacitor from EPCOS, and is a great choice for applications requiring a high degree of reliability and precision. It is a particularly popular choice for commercial and industrial applications, as it offers high levels of accuracy and protection against high voltages. It is also UL certified, so users can be confident in its safety and reliability.