When it comes to selecting capacitors for your project, capacitor KEMET stands out for their high-quality performance and versatility in various industries. If you’re looking for reliable capacitors that meet stringent requirements, the breadth of KEMET’s offerings—including automotive-grade, high-voltage, and low ESR options—provides tailored solutions for nearly every application. Understand how KEMET’s century-long commitment to innovation can elevate your project’s effectiveness with capacitor KEMET.
Key Takeaways
- KEMET capacitors offer a wide array of options tailored for various industries such as automotive, military, power, alternative energy, and consumer electronics, featuring specialized testing and robust packaging to meet sector-specific standards and requirements.
- Capacitance tolerance is crucial for the proper functioning of KEMET capacitors in electronic applications, with a range from -10% to +30% and crucial information on aging rates provided, supporting designers in compensating for changes across the capacitor’s lifespan.
- KEMET provides advanced capacitor solutions including high voltage options up to 500 VDC, low ESR solid polymer aluminum capacitors for demanding applications, specialty capacitors suited for the telecommunications industry, and innovative applications for energy harvesting and IoT devices.
Exploring the Range of KEMET Capacitors
KEMET capacitors pervade numerous sectors, including:
- Automotive
- Military
- Power
- Alternative energy
- Consumer electronics
As a testament to their commitment to quality, KEMET provides tailored reliability programs, including a range of testing services that evaluate electrical, mechanical, and material parameters, ensuring the capacitors meet the highest standards.
With over a century of manufacturing expertise, their advanced testing and measurement methods guarantee high quality and control. This leads to the production of reliable capacitors that meet the strictest requirements. KEMET’s bulk packaging options, which include both axial and radial packages, address the needs of both the automotive and commercial sectors.
Automotive Grade Capacitors – AEC-Q200 Certified
When it comes to automotive applications, KEMET’s capacitors lead the pack. They are:
- Fully compliant with the AEC-Q200 standard, ensuring they meet the reliability requirements for automotive applications
- Capable of withstanding a broad operating temperature range of -55ºC to 125ºC
- Equipped with features tailored for the automotive industry, including vibration resistance up to 30G and high ripple current capacity
These capacitors showcase exceptional robustness in automotive environments.
The lineup of automotive capacitors includes variants such as AEC-Q200 Hybrid Polymer Capacitors and Aluminum Polymer AEC-Q200 Capacitors. Radial crown versions are available, and they can survive for 2000 or 4000 hours at various extreme temperatures. Engineered to maintain operational reliability across a wide temperature range of -50ºC to 125ºC, these capacitors assure performance under extreme conditions.
Industrial Power Solutions
In power-intensive industrial environments, capacitors must exhibit long life to withstand sustained heavy-duty operations. KEMET’s high voltage capacitors, like the axial style, are designed to achieve a life expectancy of up to 22,000 hours, making them ideal for long-term industrial use.
Exemplifying durability, the PEG124 series from KEMET boasts a life expectancy of up to 22,000 hours, demonstrating its value for long-term industrial use.
Consumer Electronics Capacitors
In the consumer electronics sector, KEMET’s Multilayer Ceramic Capacitors (MLCCs) stand out as the preferred choice, thanks to their compact size and consistent performance characteristics. These MLCCs showcase stability within temperature ranges common to devices such as laptops and smartphones, such as 55 105 c and 55 125 c.
The Importance of Capacitance Tolerance in KEMET Capacitors
Capacitance tolerance is an often overlooked but critical aspect of capacitors. KEMET’s high voltage capacitors typically feature capacitance tolerances ranging from -10% to +30%, ensuring proper function in various electronic applications. However, it’s also important to note that the capacitance of KEMET’s Class II and Class III MLCCs can decline over time due to aging, necessitating careful consideration in circuit design.
KEMET provides detailed aging rate information and referee times for Class II and Class III capacitors, which helps designers compensate for capacitance changes over the product’s lifespan. This valuable data can be found on their website.
Moreover, KEMET offers a broad range of capacitance from 0.1 pF up to 100 uF, allowing for precise selection to match the strict tolerance requirements of sophisticated electronic circuits.
High Voltage Capacitor Options: Up to 500 VDC
KEMET capacitors excel in high voltage applications, with a series of high voltage aluminum electrolytic capacitors offering options up to 500 VDC. These capacitors are designed to operate in temperatures ranging from -40°C to +105°C, offering a variety of voltage ranges up to 500 VDC.
The PEG124 series, supporting voltage ratings up to 450 VDC, offers capacitors in various styles such as axial lead, radial, and SMD, with capacitance ranges from 0.47 uF to 1,300,000 uF. Beyond aluminum electrolytic options, KEMET’s C4AQ series of film capacitors with voltage ratings up to 500 VDC cater to voltage dc link and high-power applications.
Low ESR Capacitors by KEMET
KEMET’s solid polymer aluminum capacitors offer the following features:
- Low Equivalent Series Resistance (ESR)
- Higher ripple current capacity
- Extended lifespan of the component
- Stability unaffected by varying temperatures, frequencies, or elapsed operational time
These features make them an ideal choice for demanding applications, delivering impressive results when selected.
KEMET capacitors leverage a solid polymer electrolyte that does not dry out, avoiding the common failures seen in wet electrolyte capacitors and ensuring long-term reliability. Compared to traditional liquid electrolyte capacitors, KEMET’s solid polymer capacitors exhibit:
- Increased stability in capacitance over their product lifespan
- Efficient management of higher ripple currents
- Less heat generation
- Lower electronic circuit noise, particularly in high-temperature environments.
Bulk Box Capacitors for Stock and Supply
KEMET’s bulk box capacitors, suitable for stock and supply purposes, offer a broad range of capacitance values from 100 pF to 4500 uF, including the popular 220 uf, 330 uf, and 5.6 uf, catering to a variety of application requirements. The bulk packaging of KEMET capacitors can be identified by their specific C-Spec codes, which are integral to the product labeling system.
Abbreviations in KEMET’s part numbering system, such as ‘bulk’, indicate the package type for capacitors in bulk box quantities.
Specialty Capacitors for Telecommunications
KEMET capacitors hold a unique position in the telecommunications industry with designs like Superterm flexible termination that absorb external stresses and minimize the potential for cracking.
For compliance with necessary safety standards, safety-rated capacitors like X1/Y2 and X2 are utilized.
Filters and Filtering Solutions with KEMET
KEMET caters to the crucial aspect of noise suppression in electronic circuit design by providing a range of EMI/RFI noise suppression filters. These include the FAH, MR, and GTX series, all designed to guarantee clean power delivery across various applications.
The filtering solutions from KEMET include:
- FAH series: handles currents between 1 A to 2.5 A with an operating voltage of 250 VAC
- MR series: manages up to 4 A and functions between -20 to +60°C
- GTX series: supports currents from 6 A to 30 A with AC voltage ratings of 250 VAC, DC voltages up to 560 V, and 25 vdc compatibility.
These filter solutions are vital for equipment to comply with EMC standards such as CISPR, IEC, and ISO, ensuring their reliability and performance in commercial and industrial settings.
Customization and Accessories for KEMET Capacitors
KEMET offers a variety of accessories including capacitor mounting brackets, metal clamps, and capacitor nuts to accommodate different mounting needs. Specific accessories for KEMET capacitors include vertical and horizontal mounting clamps, nylon cap nuts, and poly washers, catering to different capacitor sizes and ensuring a secure fit.
Mounting kits available for KEMET capacitors are not only available in various sizes to match different capacitor requirements but also adhere to RoHS compliance, demonstrating a commitment to environmentally friendly manufacturing practices. KEMET provides a comprehensive selection of components designed to manage electromagnetic interference (EMI) in densely packed electronic systems, thus offering enhancements for both radiated and conducted emissions.
Innovative Applications: Energy Harvesting and IoT Devices
Matching the evolution of the electronics world, KEMET has developed capacitors for energy harvesting. These capacitors, integrated into IoT devices and large-scale generators, surpass traditional capacitors in efficiency and reliability.
For applications requiring rapid energy discharge and high power peaks, KEMET’s supercapacitors are an excellent choice due to their long cycle life, wide operating temperature range, and ability to deliver high peak currents.
KEMET suggests utilizing their electrolytic capacitors in energy harvesting applications where the energy is used immediately, as these capacitors can efficiently manage the energy without the need for additional storage solutions.
Summary
From powering our favorite gadgets to enabling the progression of the automotive and telecommunications industries, capacitors play an integral role in our digital world. KEMET’s century-long experience, coupled with their commitment to quality and innovation, ensures they offer capacitors that meet the most demanding requirements. Whether you’re designing a new circuit or sourcing capacitors for existing applications, KEMET’s diverse range, rigorous testing protocols, and innovative solutions make them a reliable partner in your electronic endeavours.
Frequently Asked Questions
What is the failure rate of Kemet ceramic capacitors?
The failure rate of Kemet ceramic capacitors can be as low as 0.001% per 1,000 hours for certain series qualified under U.S. military reliability specifications.
What is a mica capacitor used for?
Mica capacitors are used in high-frequency applications such as RF tuned circuits in filters, oscillators, and RF transmitters due to their high breakdown voltage and stability, making them essential for precise and predictable circuit performance.
Where are Kemet capacitors manufactured?
Kemet capacitors are manufactured in the Americas.
What are the applications of KEMET capacitors?
KEMET capacitors have applications in various sectors, including power, alternative energy, automotive, military, and consumer electronics.
What makes KEMET capacitors reliable for automotive applications?
KEMET capacitors are reliable for automotive applications because they are fully compliant with the AEC-Q200 standard, guaranteeing their reliability for automotive use.