Film Capacitors for Audio

The CL20 capacitor (MEF type) is a low-noise component constructed from metallized polyester film. It features axial leads, is wrapped with high-temperature tape, and has epoxy potting at both ends. The capacitor body is oval (oblong) or cylindrical in shape

Product Introduction

The CL20 capacitor (MEF type) is a low-noise component constructed from metallized polyester film. It features axial leads, is wrapped with high-temperature tape, and has epoxy potting at both ends. The capacitor body is oval (oblong) or cylindrical in shape
Widely used in low noise coupling circuits such as audio and power supply.

Features

Metallized polyester film, axial lead, coated with high temperature adhesive tape, the epoxy potting.
Flat circular or cylindrical shape
Low noise.
Low dissipation factor.
Excellent self-healing property, good stability, and reliability

SPECIFICATIONS
Climatic Category	40/100/21
Rated Voltage	100V, 250V, 400V, 630V
Capacitance Range	0.001Μf ~6.8μF
Capacitance Tolerance	±5%(J), ±10%(K)
Voltage Proof	1.6U_R
Insulation resistance	≥3000MΩ, CR≤0.33μF (20℃, 1min) ≥10000S, CR>0.33μF (20℃, 1min)
Tangent of loss angle	≤0.008 % (23℃, 1KHZ)

DRAWING: (mm)

Advantage

Vertical integration capability: independent control of core processes such as thin film coating, slitting and winding to reduce supply chain risks.
Strict quality control: IATF 16949 automotive grade certification, full inspection of voltage resistance, ESR, and life span for each batch of products.
Process Patent Reserve: We have core patents such as metallized edge thickening and self-healing technology to enhance product reliability.
Industry-university-research cooperation: We have built laboratories with universities and research institutes to continuously research and develop high-frequency and high-density capacitor technology.

Application Scenario

In-vehicle infotainment systems (audio coupling capacitors)
48V light hybrid system (start-stop energy recovery buffer)
High-speed rail traction converter (high-frequency resonance absorption)
Marine electric propulsion system (harmonic suppression)
Inverter (DC bus capacitance, output filtering)

FAQ

Q: How to understand loss angle tangent (tanδ)?

A: The smaller the tangent of the loss angle, the higher the efficiency of the capacitor and the lower the heat generation.

Q: What is the application of film capacitor in new energy field?

A: For photovoltaic inverters, wind power converters, electric vehicle motor drives, etc.

Q: What type of film capacitors are suitable for high frequency circuits?

A: Polypropylene (PP) capacitors are preferred for their low tanδ and high frequency stability.

Q: Role in power supply filtering?

A: Filter out high frequency noise, improve power quality, often used in conjunction with electrolytic capacitors.

ZZEC Corporate Profile

Was established in 2007, the company is located in Yue yang city of Hunan province Yue yang county Bai Xiang town industrial zone, the enterprise from the beginning of entrepreneurship, "the spirit of customer first, forge ahead" spirit, focus on satisfy clients' demand for miniaturization, from at home and abroad to introduce advanced machines, to form a number of automated production line, at the same time subminiature automatic assembling machine imported from Italy, Specializing in the production of MINI BOX capacitor (super small BOX potting capacitor) and super small size, high precision series capacitor. To achieve annual shipments of about 2 billion film capacitors. Product quality is the survival foundation of the enterprise, relying on ISO9001 quality system, we use high-quality raw materials and high reliability of the process, thick accumulation to provide more than 300 agents and 1500 final customers with stable and reliable products and customized services. Step by step to develop into an influential enterprise in the industry