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Main parameters and characteristics of CBB film capacitors

Views: 3     Author: Site Editor     Publish Time: 2023-08-30      Origin: Site

There are safety capacitors, super capacitors, ceramic capacitors, electrolytic capacitors, and film capacitors in the capacitor family. Among them, there are many types and sizes of film capacitors. According to the plastic film, they are divided into polyethylene film capacitors, polypropylene film capacitors, polystyrene film capacitors, polycarbonate film capacitors, and polyphenylene sulfide film capacitors;According to the dielectric, it is divided into T-type film capacitors, P-type film capacitors, and N-type film capacitors; according to the lead-out method, there are vertical film capacitors, horizontal film capacitors, and chip film capacitors. Today I mainly talk about the big branch of CBB film capacitors.

CBB capacitors are called polypropylene capacitors. Metal foils are used as electrodes, polypropylene film is used as a medium, tinned copper-clad steel wires are used as pins, and film capacitors are made by overlapping and winding from both ends. Epoxy resin is used for the outside. Encapsulation, good flame retardant performance, divided into sensory CBB capacitors and non-inductive CBB capacitors according to the sensory and non-inductive winding process.

CBB film capacitors (polypropylene capacitors) have stable capacitance, similar performance to polystyrene capacitors but smaller volume than polystyrene capacitors, and can replace most polystyrene capacitors or mica capacitors in applications that require precision capacitance.

一、Main parameters of CBB film capacitors

1. The common capacitance is 1000pF~10μF

2. The common rated voltage is 63V~2000V

3. Capacity deviation is ±5% (J), ±10% (K)

4. Working temperature range: -55℃~+105℃

5. Climate category: 55/105/21, 55/105/56

二、Characteristics of CBB film capacitors

Non-polarity, high insulation resistance, excellent electrical performance, high dielectric constant, good reliability, excellent frequency characteristics, small dielectric loss, good self-healing performance and other characteristics.


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