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Capacitor - Professional Power Supply High Precision Capacitor

What is the foundation of circuit stability and power purity? The answer often lies in the selection of capacitors. Foshan Piner Electronics, as a professional capacitor supplier, offers a full range of products including metallized film capacitors. It is a solid support for you to achieve efficient and stable circuit design.


Capacitors are ubiquitous in the electronic circuits of household appliances, used for filtering, bypassing, starting, running, energy storage and timing. Engineers often face the challenge of choosing the right capacitors for input/output filtering to achieve low noise and high resistance to ripple current handling. This requires a deep understanding of the material, capacitance, voltage, ESR (equivalent series resistance) and frequency characteristics of the capacitors. The technical team at Piner Electronics is well-versed in this area. We not only offer standard models but also recommend or customize the most suitable capacitor solutions based on your application's specific environments such as high voltage or high temperature.


The selling points of our Capacitor products are remarkable: 1) Comprehensive product line: From capacitors used in high-temperature induction cookers to DC/AC supporting metallized film capacitors suitable for high voltage and large current, and then to industrial new energy capacitors, we have everything. 2) Excellent electrical performance: Our film capacitors have high capacitance stability and low loss; they are renowned for their low ESR, high dv/dt capabilities and self-healing characteristics; the X2 anti-interference capacitors provide solutions for suppressing electromagnetic interference, and their lifespan far exceeds industry standards. 3) High reliability guarantee: Strict raw material control, precise manufacturing processes and 100% electrical performance testing ensure that the products perform stably under high temperature, high humidity and high ripple current conditions, extending the lifespan of end devices. The application scenarios cover all power electronics, household appliances and new energy fields: In the new energy field (such as DC-Link buffering in photovoltaic inverters and wind turbine converters), our film capacitors are key components; in the switching power supplies of servers/data centers, solid-state capacitors and MLCC provide extreme low impedance and fast response; in automotive electronics (especially in motor drivers and OBC of electric vehicles), high-reliability capacitors are the guarantee for safe operation; in addition, our products are also everywhere in smart home appliances, industrial automation and consumer electronics.


Specifically, for the crucial safety capacitors (X capacitors and Y capacitors) in switching power supplies, we provide products that fully comply with international safety standards, effectively suppressing electromagnetic interference and ensuring user safety. By perfectly matching our capacitors with the high-frequency transformers and inductors in your circuits, you can build an efficient, quiet and robust power system. Haoer and Piner Electronics look forward to adding value and competitiveness to your global projects with our outstanding capacitor technology.


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Photovoltaic Solar Capacitor

Photovoltaic Solar Capacitor

The Photovoltaic Solar Capacitor produced by Piner Electronics, a supplier, is a dedicated DC supporting core component for photovoltaic power electronic systems. It is specifically designed for the DC bus circuits of photovoltaic inverters, combiner boxes, and other photovoltaic equipment. It precisely meets the demanding conditions of outdoor high temperatures, voltage fluctuations, and large ripple currents in photovoltaic scenarios, ensuring the stable and efficient operation of the photovoltaic system from generation to inverter. It is suitable for the DC supporting needs of all types of photovoltaic equipment, including string-type and centralized inverters, and photovoltaic energy storage systems.
DC-Link Capacitor

DC-Link Capacitor

Piner Electronic’s China DC-Link Capacitor,Non-inductive winding technology is adopted, utilizing metallized polypropylene film and special metal spraying techniques. The capacitor is encapsulated in an aluminum casing, with flame-retardant epoxy resin potting for enhanced safety and durability. It features a cylindrical aluminum shell and terminals made of copper bolts or copper nuts. This design offers a compact size, high capacitance, excellent over-current capability, low temperature rise, minimal stray inductance, and extended service life, while also simplifying installation.
MKP-LL Film Capacitor

MKP-LL Film Capacitor

Piner Electronic’s China MKP-LL Film Capacitor with metallized polypropylene film, special metal spray, aluminum shell encapsulation, flame retardant epoxy potting, cylinder aluminum shell, flame retardant epoxy potting, copper bolts or copper nuts terminal. Small size, large capacitance, good over-current capability, low temperature rise, low stray inductance, long lifetime, simple and convenient installation. Instead of aluminum electrolytic capacitor, which are widely used in wind power, photovoltaic solar energy, SVG, inverter and other medium and large inverter for dc-link in the system.
Metalized Polypropylene Film New Energy Capacitor

Metalized Polypropylene Film New Energy Capacitor

The Metalized Polypropylene Film New Energy Capacitor produced by Piner Electronics is a specialized film capacitor specifically designed for the field of new energy. It uses an organic film as the insulating medium and deposits a metal layer on the surface of the organic film as the electrode. It is formed by winding in pairs and is a power electronic capacitor. It has the advantages of stable capacity, small equivalent series resistance, strong overcurrent capability, and small self-inductance. It is suitable for various applications with harsh operating conditions, low sensitivity, and high requirements for long service life, such as photovoltaic inverters, wind power converters, new energy HEV/EV controllers, SVG, APF, DC-link DC support capacitors for high-voltage frequency converters, and various inverter output filter capacitors.
Metalized Polypropylene Film Industrial Capacitor

Metalized Polypropylene Film Industrial Capacitor

The China Metalized Polypropylene Film Industrial Capacitor supplied by Piner Electronic manufacturer is abbreviated as MKP capacitor (M stands for metallization, and KP stands for polypropylene film). The core medium is polypropylene film, and the electrodes are extremely thin metal layers formed on the surface of the film through vacuum evaporation technology. With its comprehensive advantages such as high withstand voltage, low loss, self-healing property, and long lifespan, it has become an indispensable core passive component in modern industrial power electronic equipment.
Suppressing Electromagnetic Interference Capacitor

Suppressing Electromagnetic Interference Capacitor

The Suppressing Electromagnetic Interference Capacitor produced by Piner manufacturer is wound from a metallized polypropylene film non-inductive structure. It is made of tin-plated copper-covered steel wire, plastic housing and flame-retardant epoxy resin. It features low loss, high insulation, good self-healing properties, and complies with UL, CSA, ENEC, and CQC safety standards for capacitors.
As a reliable Capacitor manufacturer and supplier in China, we have custom options and volume discount pricing. Please just send us a quotation!
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