B32521N8103J289

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Film Capacitors

Film capacitors, also known as film dielectric capacitors, are capacitors made with a thin film as its dielectric, aka the insulator between the positive and negative side plates. Film capacitors have a variety of uses, from audio and visual applications to counter-EMI (electromagnetic interference) functions. The B32521N8103J289 is a film capacitor specifically made for very high frequencies and high DC voltages and is particularly handy when these two properties need to be balanced.

The B32521N8103J289

The B32521N8103J289 is a polyester film capacitor made by TDK Corp and therefore has good solderability and an SID to meeting UL 94V-0 and CSA 199-M89 specifications. It\'s made with just 1/10th of a human hair thick polyethylene terephthalate (PET) film, providing a small and light form factor as well as high ripple, low dissipation and low noise. Additionally, the B32521N8103J289 has a self-healing property, with a maximum rated voltage of 1kV, and is flame retardant.

Application Field

The B32521N8103J289 is usually used for waveshaping and coupling applications in high-frequency circuits, such as those found in third- generation mobile (3G) and fourth-generation mobile (4G) phones, as well as other handheld devices; It’s also used in test and measurement equipment, audio and video circuits, as well as general electrical equipment.

Working Principle

The B32521N8103J289 uses a phenomenon known as capacitance to store electrical energy and then release it. This is one of the main properties of the capacitor. Capacitance is the ratio between the amount of electric charge stored in a capacitor and the potential difference between its two plates. It’s determined by the size and shape of the capacitor, material and the dielectric between the plates.

In this film capacitor, the dielectric is a thin polyethylene terephthalate (PET) film with a maximum voltage of 1000V. When a voltage is applied, the film produces an electric field, with the top and bottom plates of the capacitor taking on opposite charges. This creates a positive and negative capacitor. When the DC applied is removed, the charge dissipates, with the capacitor releasing energy via the electric field that was created.

Conclusion

The B32521N8103J289 is a polyester film capacitor used in a wide range of applications due to its ability to store and release electrical charge. It is a form plate capacitor made out of a polyethylene terephthalate (PET) film with a maximum voltage of 1000V. It is largely used in 3G and 4G mobile phones, handheld devices, test and measurement equipment, audio and video circuits, as well as general electrical equipment.

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