Kemet’s C4AF-F boosts capacitance even in harsh environments
Available from Rutronik, the C4AF-F filter capacitor from Kemet is an improved version of the C4AF series. According to Rutronik, compared to the earlier C4AF-T, it is smaller and has an increased THB (temperature-humidty-bias) duration of 1500 hours operation at +85 degrees C and 85 per cent relative humidity. It also has an increased capacitance range from 62 to 75 microF caused by a higher capacitance density.
The C4AF-F AC filter series are metallised polypropylene film capacitors available in either two-pin or four-pin versions. The capacitors provide a high ripple current capability of up to 40A rms with an average of 19A rms and are suitable for filtering high ripple harmonics at the input of AC/DC converters and at the output of DC/AC inverter systems. They have a low loss factor (DF) and an “excellent self-healing mechanism” added Rutronik.
They operate reliably in a temperature range from -55 to +105 degrees C. They are stable under harsh conditions such as high temperatures and high frequencies and have a long service life of at least 60,000 hours at VNAC, said the company.
The C4AF-F series is in a typical boxed design and suitable for AC and harmonic filtering applications in UPS systems or motor drives. The capacitors are AEC-Q200 qualified for automotive applications, for example inverter systems or battery chargers. Other potential applications are motor drives, terminal / damping systems and power factor correction. They are available in bulk packaging.
Rutronik Elektronische Bauelemente was founded in 1973. The independent family-owned company is based in Ispringen, Germany and has more than 80 offices worldwide and logistics centres in Austin (Texas), Shanghai, Singapore, and Hong Kong, for customer support in Europe, Asia, and North America.
The company focuses on high-growth future markets, namely advanced materials, advanced measurement, processing and analytics, advanced robotics, automation, biotechnology, energy and power, future mobility, IIoT and internet of everything, industry 4.0, medical and healthcare, and transportation, logistics and supply chain.
