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Capacitores de Polipropileno Metalizado

Os capacitores de polipropileno metalizado são 38*28*18mm e 2,0uF para capacitor de filme de polipropileno metalizado. choque de alta corrente. Como eletrodos condutores, minúsculas camadas de alumínio (cerca de 0,03 m) são depositadas a vácuo no filme isolante no caso de capacitores metalizados. Estamos procurando consultas em massa para capacitores de polipropileno metalizado, capacitores de uso CA da série MAC, etc. Os capacitores metalizados se isolam quando há uma quebra devido à corrente de curto-circuito, criando uma região isolante.

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Apresentação do produto

Metalized polypropylene capacitors has a series structure, metalized polypropylene film, low loss, outstanding electrical performance, high reliability, and self-healing capabilities, and can withstand high voltage and high current shock.

Como eletrodos condutores, pequenas camadas de alumínio (cerca de 0,03 m) são depositadas a vácuo no filme isolante no caso de capacitores metalizados. Quando há uma quebra, o fino revestimento de metal ao redor do ponto de falha evapora devido à corrente de curto-circuito, criando uma região isolante.

Defina o multímetro para ler na região de alta ohms, entre 10k e 1m ohms, para testar o capacitor. Conecte os fios do medidor - vermelho ao positivo e preto ao negativo - aos fios correspondentes do capacitor. O medidor deve começar em zero e aumentar gradualmente até o infinito.

Neste artigo, os autores quantificam as perdas em capacitores de filme de polipropileno metalizado usando uma abordagem analítica. O conceito é posto à prova usando capacitores com geometrias variadas, mas a mesma capacitância. Para maximizar seu desempenho térmico, uma distribuição de temperatura no rolo é assumida para cada série de capacitores. De acordo com as aparências, um capacitor longo aquece mais rapidamente do que um capacitor plano idêntico que é submetido aos mesmos estressores elétricos.

É preto e a capacitância é 2,0uF. A dimensão é 38*28*18mm. Os capacitores metalizados estão disponíveis com diferentes valores de classificações gerais e de valor. Eles são usados ​​para pulsação CC, pulso e redução de tensão CA em instrumentos, medidores, aparelhos de TV e eletrodomésticos. Estamos procurando consultas em massa para Capacitor de polipropileno metalizado, capacitores de uso CA da série MAC, etc.

Metalized polypropylene capacitors have no polarity, high insulation resistance, excellent frequency characteristics (broad frequency response), and low dielectric loss. Based on the above advantages, film capacitors are widely used in analog circuits. Especially in the part where the signals are cross-connected, capacitors with good frequency characteristics and extremely low dielectric loss must be used to ensure that the signal will not be distorted when it is transmitted. High dielectric constant, small size, large capacity, good stability, suitable for bypass capacitors. Polystyrene film capacitors have low dielectric loss and high insulation resistance, but have a large temperature coefficient and can be used in high-frequency circuits.

 

têm metalizado olypropylene capacitors Features

1. Perda muito baixa.

2. O coeficiente médio de absorção é baixo.

3. Alta resistência de isolamento.

4. Boas características de frequência.

5. Boas propriedades de autocura.

6. Boa estabilidade.

7.têm metalizado olypropylene capacitors have a wide capacity range, ranging from thousands of picofarads to tens of microfarads.

8.Boa resistência à temperatura e alta resistência de isolamento.

9.Capacitores de filme de polipropileno metalizado have good self-healing ability.

10.O valor da tangente de perda é pequeno e as características de alta frequência são boas.

11.Tamanho pequeno, operação confiável.

12.Construção não indutiva
13.Self-healing property
14.High current endurability up to 20A and special termination for high current

 

O papel dos : etalized metalizado olypropylene c.: high frequency pulse applications, high current occasions, AC occasions, high stability timing occasions, switching power supply systems, lighting industry, industrial control industry and other fields.

Capacitores de Polipropileno Metalizado

Application of metalized polypropylene capacitors:

1. Aplicável para condicionadores de ar, ventiladores, ventiladores elétricos, motores AC monofásicos, lâmpadas fluorescentes,

mercury lamps and transformer etc.
2. Used for starting, running and power factor correcting purpose.

 

Capacitores de Polipropileno Metalizado

Especificações dos capacitores de polipropileno metalizado:

Dielétrico: filme de polipropileno metalizado

Eletrodos: Metal evaporado a vácuo

Revestimento: Encapsulado em caixa selada de plástico de engenharia com resina epóxi atendendo ao requisito.

Condutores: Condutores radiais de fio estanhado / fio flexível de isolamento ou abas

Padrão de referência: GB/T 3667-1997 UL810 IEC 60252-1

Catálogo climático: 25/70/21

Capacitância versus tensão nominal:

1,0μF~50μF 0~500VAC (UL)

1,0uF~13,0uF 250VAC (CQC VDE)、

1,0uF~6,0uF 400VAC (CQC)

1,0uF~6,0uF 500VAC (CQC VDE)

Tolerância de capacitância: M ±20% K ± 10% J ± 5%

Fator de dissipação (tangente de perda): ≤% ℃ 0,2 (a 20 , 1KHz)

À prova de tensão:

TT 2.0*UR(10S) Unidade:VDC

TC 2*UR+1000V(60S) Unidade:VDC

Resistência de isolamento:

TT C< 0,47 μF ≥ 2000MΩ

C≥ 0,47 μF ≥ 1000S

TC ≥ 2000MΩ (1 minuto a 20 e UR 65%)

RESISTÊNCIA APÓS O TESTE:

600 horas com 125% da tensão nominal a 70 ℃。

70 ℃, 125%。

ΔC/C≤ 5%; IR ≥ 50% do valor especificado

 

Metalized polypropylene capacitors, often referred to as metallized polypropylene capacitors, are a type of capacitor used in electronic circuits. These capacitors are known for their excellent electrical properties and are commonly used in applications that require high precision and reliability. Here are some key characteristics and information about metalized polypropylene capacitors:

  1. Dielectric Material: These capacitors use polypropylene as their dielectric material. Polypropylene is a type of plastic that has low dielectric losses and is known for its stability over a wide range of temperatures and frequencies.
  2. Metallized Film: The polypropylene film is metallized by depositing a thin layer of metal, typically aluminum, on one or both sides of the film. This metallization process increases the capacitance and improves the capacitor’s performance.
  3. High Capacitance Values: Metalized polypropylene capacitors are available in a wide range of capacitance values, from picofarads (pF) to microfarads (µF). They can store a significant amount of electrical energy for their size.
  4. Low ESR and ESL: These capacitors typically have low Equivalent Series Resistance (ESR) and Equivalent Series Inductance (ESL), making them suitable for applications where low impedance and high-frequency performance are required.
  5. Low Losses: Metalized polypropylene capacitors have low dielectric losses, which means they can store and release energy efficiently without generating excessive heat.
  6. High Voltage Ratings: They are available in various voltage ratings to suit different applications, including high-voltage applications.
  7. Stable Performance: These capacitors offer stable and predictable performance over time, with minimal drift in capacitance or other electrical characteristics.
  8. Non-Polarized: Most metalized polypropylene capacitors are non-polarized, which means they can be connected to a circuit without regard to the polarity.
  9. Applications: These capacitors are commonly used in audio equipment, power electronics, filter circuits, and other applications where precision, low losses, and stability are crucial. They are also suitable for crossover networks in loudspeakers and in radio frequency (RF) circuits.
  10. Size and Form Factors: Metalized polypropylene capacitors are available in various package sizes, including radial and axial leaded capacitors, surface-mount capacitors, and even large can-style capacitors for high-power applications.

It’s important to select the right type and value of capacitor for your specific application to ensure optimal performance. Metalized polypropylene capacitors are often chosen for their reliability and low distortion in audio applications, as well as their ability to handle high-frequency signals in electronic circuits.

 

Advantages of metalized polypropylene capacitors

Metalized polypropylene capacitors offer several advantages that make them desirable for various electronic applications. Here are some of the key advantages:

  1. Low Dielectric Losses: Metalized polypropylene capacitors have very low dielectric losses. This means they can store and discharge electrical energy with minimal energy dissipation as heat. Low losses are especially crucial in applications where efficiency is critical.
  2. Stable Performance: These capacitors are known for their stable electrical characteristics over time. They exhibit minimal drift in capacitance and other electrical parameters, which is essential in applications that require precision and reliability.
  3. High Insulation Resistance: Polypropylene dielectric material provides high insulation resistance, reducing leakage currents and ensuring that the stored charge remains stable over time. This makes them suitable for high-impedance and low-leakage applications.
  4. Wide Temperature Range: Metalized polypropylene capacitors can operate over a wide temperature range without significant performance degradation. This makes them suitable for both low-temperature and high-temperature environments.
  5. High Voltage Ratings: They are available in various voltage ratings, including high-voltage options, making them versatile for a wide range of applications, including power electronics.
  6. Non-Polarized: Most metalized polypropylene capacitors are non-polarized, which simplifies their use in circuits. You don’t need to worry about connecting them with a specific polarity.
  7. Low Equivalent Series Resistance (ESR): These capacitors typically have low ESR, which is essential in applications that require low impedance, such as power supply filtering and high-frequency circuits.
  8. Low Equivalent Series Inductance (ESL): The low ESL of metalized polypropylene capacitors makes them suitable for high-frequency applications where minimizing parasitic inductance is critical.
  9. High Precision: They are used in applications that demand high precision, such as audio equipment and filter circuits, where even small deviations in capacitance can affect performance.
  10. Long Lifespan: Metalized polypropylene capacitors often have a long operational life, which contributes to the reliability of circuits and reduces the need for frequent maintenance or replacement.
  11. Wide Range of Capacitance Values: These capacitors are available in a wide range of capacitance values, making it easy to select the right component for your specific application.
  12. Low Cost: While they may not be the cheapest capacitors on the market, they offer excellent performance for their cost, making them a cost-effective choice for many applications.

Overall, metalized polypropylene capacitors are prized for their combination of low losses, stability, and versatility, making them suitable for a wide range of electronic and electrical applications where high-performance capacitors are required.

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