The new ALH series of ac-rated filter capacitors offer 50% greater life than competitive 85/85 THB-rated film capacitors. The Temperature, Humidity at Bias (THB) test exposes parts to the harsh conditions of 85°C at 85% relative humidity with rated voltage applied. CDE’s testing has been validated for 1,500 hours, while competitors validate their series for […]
Capacitors
High-frequency 100-nF capacitors improve bypass performance in GaN/GaAs amplifiers
Knowles Precision Devices recently announced the release of a new 100nF capacitor within its V-Series of single-layer capacitors. The 100nF is a high frequency, wire bondable single layer capacitor, making it ideally suited for GaN and GaAs amplifier applications where small size and microwave performance are critical. V-Series single-layer capacitors, including the new 100nF, are […]
Calculation tool covers electrolytic capacitors up to >150 V DC
TDK Corporation presents the fully revised version 4.0 of the tried and tested Online AlCap Useful Life Calculation Tool for EPCOS aluminum electrolytic capacitors. The tool covers all new high-voltage capacitors (>150 V DC) with screw, snap-in and solder pin connections. These DC link capacitors are particularly suitable for new designs of converters for industrial […]
Snap-in aluminum electrolytic capacitors sport outstanding ripple-current specs
TDK Corporation presents the new EPCOS aluminum electrolytic capacitor series B43548* with snap-in terminals. The capacitors feature an excellent maximum ripple current capability of 9.80 A (400 V, 100 Hz, 60 °C). This makes them ideal for demanding applications in power electronics. The capacitors are designed for a maximum operating temperature of 105 °C, have […]
Selecting dc-link capacitors for inverters
One key factor: Determining the nuances of how capacitors handle expected ripple currents. Sam G. Parler, Jr., P.E. Cornell Dubilier Examine a dc link capacitor’s ac ripple current and you’ll realize it arises from two main contributors: the incoming current from the energy source and the current drawn by the inverter. Of course, capacitors cannot […]
Hybrid lithium-ion supercaps deliver up to 220 F at 3.8 V
Cornell Dubilier Electronics introduces two new series of Hybrid LIC Supercapacitors in response to the growing need for ultra-high capacitance values at higher operating voltages. The new VMF and VPF Series operate at 3.8 WVDC with capacitance values up to 220 Farads. The higher voltage results in increased energy density. With nearly eight times the energy density and a […]
Emerging applications for switched capacitor power conversion
Switched capacitor (SC) technology is often associated with on-chip filters and amplifiers or low-power and low-voltage power conversion such as charge pumps for wearables, Internet of Things (IoT) and similar battery-powered devices. That is changing. Today, SC power conversion is being developed for higher-power and higher-voltage industrial, electric vehicle and power grid applications such as […]
What are switched capacitor filters, amplifiers and integrators?
Switched capacitors (SCs) are highly-versatile circuit elements that can be used to provide various functions, ranging from micro-scale implementations embedded in integrated circuits (ICs) or designed into wearables and other small devices, to a variety of power conversion applications, up to grid-scale systems. This FAQ series will explore the versatility of switched-capacitors. Following this initial […]
How to shrink size and boost performance with low inductance electrolytic capacitors
By Suzana Jankuloska, Aluminum Electrolytic Product Manager at KEMET Corp Electrolytic capacitors optimized for low internal inductance can help reduce the cost of industrial power-conversion applications while increasing efficiency, performance, and reliability. As the automation of manufacturing and assembly processes continues to become more widespread, driven by emerging trends such as Industry 4.0 and the […]
High-temp, high-ripple current capacitor yields long life
New Yorker Electronics has announced the release of the new Vishay BC Components 190 RTL Aluminum Capacitors for increased design flexibility and board space in high-temperature applications. The new Automotive Grade miniature aluminum electrolytic capacitors offer high ripple currents up to 3.36A, operating temperatures to +125°C, and up to 6,000 hours of usable life. […]