Learn from KEMET and Yageo about PDN high power components.
YAGEO:
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MLCCs:
Driven by the infinite desire for electronic devices to be more compact and reliable, MLCCs have become one of the most developed and highly competitive capacitors segments in the market.
As a major MLCC provider, YAGEO continues to allocate R&D resources to product development, manufacturing refinement, and quality assurance.
YAGEO is dedicated to offering a comprehensive MLCC product portfolio for diverse applications, including consumer electronics, industrial and heavy-duty machinery, and automotive electronics systems.
Their MLCC line-up includes general purpose, ultra-small size, high voltage, soft termination, high Q for high frequency communication, high reliability for automotive use, low inductance, and others.
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Resistors:
YAGEO is one of the largest global suppliers of chip resistors and serves various applications in major market segments, including automotive, industrial, alternative energy, and consumer electronics. YAGEO provides a complete range chip resistors, covering automotive-grade metal current sensors, precision thin film, surge, sulfur-resistant, high power, high voltage, arrays, miniature types 01005 and 0075, and more.
With the largest number of components in a circuit board, chip resistors can determine end product performance and reliability. YAGEO's superior quality system and state-of-the-art manufacturing technology ensure resistors fully meet all requirements. Customers can benefit from their robust product quality as well as their innovative services.
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Circuit Protection Components:
YAGEO offers complete circuit protection solutions including overvoltage protection components TVS, MOV, GDT, SPG, ESD, TSS, and overcurrent protection components PPTC and NTC. TVS, MOV, and ESD products have precise voltage clamping capability. They can constrain the voltage in a permissible level to prevent circuit damage by conducting significant current to ground. GDT, SPG, and TSS products work as a switch. The switch can be turned on to conduct transient abnormal current to ground. PPTC and NTC are resistors whose resistances are dependent on temperature. The resistances of PPTC and NTC can be changed along with temperature to protect circuit. YAGEO circuit protection products are used in all kinds of applications including Automotive, Industrial, Power supplies, Telecommunications, Consumer electronics.
KEMET:
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MLCCs:
KEMET provides automotive grade components that are designed with safer failure mechanisms and qualified to industry standards, such as AEC-Q200 and VW AUDI 80808. Their parts have been proven on the road and in the lab with an extensive track record of reliability. Their automotive grade products are verified to work under harsh temperatures ranging from -50ºC to 125ºC, and are certified for automotive applications such as powertrain, on-board electronics, and charging systems.
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Tantalum Polymer:
KEMET is the market leader in polymer capacitor technology. Their organic capacitors are solid electrolytic devices constructed with a conductive polymer cathode capable of delivering optimized performance in a broad range of applications. Combining very low ESR and improved capacitance retention at high frequencies with a broad dimensional offering, KEMET’s portfolio supports designers through innovation and technology.
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Aluminum and Hybrid Polymer:
KEMET aluminum electrolytic capacitors offer excellent ripple current carrying capability coupled with extended life for high energy and power applications. The high capacitance and high ripple current rating are ideal for DC link applications in power converters.
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Inductors and Coils:
KEMET offers a range of inductors for DC/DC converters that require minimal losses and low DCR. The metal composite variety features a shielded construction to mitigate flux leakage that may otherwise cause unwanted interference in critical circuit areas.
KEMET AC chokes are available in common mode, normal mode, and dual mode. They are constructed from a variety of core materials that allow for various form factors and permeability levels to focus attenuate noise over a wide or focused band.
Pulse:
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Power Magnetic Components:
Power Inductors are used in variety of functions including differential mode filtering, output chokes and as the energy storage device in power supply topologies such a buck, boost, SEPIC and Cuk. The key parameters for a power inductor are the rated current (to ensure the part does not overheat), the saturation current (to ensure it will not saturate at peak application current) as well as paying close attention to the AC losses that are caused by the ripple current and frequency within the application.
Catalog offerings range from mA to 150A, 100nH to 1mH in both surface mount and through-hole applications.
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Custom Power Magnetics
A significant portion of Pulse’s Power PBU business is derived from developing unique magnetic solutions for their end-customer’s applications. In fact, many of their catalog parts began as projects for a specific customer and then were expanded into a broader offering. Often customers are reluctant to engage on a custom design as they anticipate higher costs, NRE charges or longer lead times but in reality most projects leverage existing materials and platforms and therefore lead time, cost and NRE are not affected. Although they do have a wide selection of catalog power magnetics it is still often necessary to create custom or application specific designs due to variations in:
- Power supply topologies
- Input voltage ranges
- Operating frequency
- Output voltage and power requirements
- Mechanical and thermal constraints.
These custom or application specific designs are often simple tweaks to existing catalog solutions and although customers are concerned that ‘custom’ means higher costs, longer lead times and NRE this is not the case when leveraging existing platforms and material. However, some designs may require completely new designs utilizing custom materials (cores, windings and plastics) and in these cases any NRE, price or lead-time impacts will communicate up front to their customers. By leveraging their material knowledge, design expertise and finite element analysis simulation tools Pulse can quickly evaluate your requirements, determine if a project is feasible and design and manufacture parts that meet your exact requirements.
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Power Bead & TLVR Inductors:
Power bead inductors are typically used in high current multi-phase voltage regulators that power processors, memory modules and high current ASICs and FPGA in a wide range of applications including servers, graphics cards, storage and data centers. The construction consists of a ferrite core assembled over a 1T or 2T winding and which allows for extremely low DCR, high peak current and low AC losses. Pulse has single phase, integrated phases and coupled inductor versions. Their high-volume manufacturing enables us to produce components that are cost-effective while maintain exceptional quality and reliability.
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Power Transformers:
Power Transformers are used to convert voltages and isolate signals for functionality and safety. Their broad line of catalog and custom solutions range from mW to 5-10kW and are used in multiple topologies including flyback, forward, push-pull, resonant, LLC and phase shifted full bridges. Typical operating frequencies are between 80-500kHz but solutions can be adapted for greater than 1MHz operation.
Their designs include surface mount, through hole and pin-in-paste terminations using a wide range of winding technologies including wire-wound, flat wire, foil, copper plate and PCB constructions. Their catalog and customer solutions include Class B (130C), Class F (155C) and Class H (180C) insulation systems for functional, basic and reinforced safety isolation requirements complying to the latest safety standards.
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