A varactor diode or varicap diode is a semiconductor diode that changes its junction capacitance significantly depending on the applied reverse bias voltage. Many semiconductor PN junction diodes are designed to exhibit specific electrical properties; the varactor diode or varicap diode is one such semiconductor specifically designed to exhibit unique junction capacitance characteristics. These types […]
Capacitors
Power electronics technology efficiently converts AC to DC without PFC inductor
Saelig Company, Inc. has announced Pulsiv OSMIUM, a novel patented power electronics technology for efficiently converting AC to DC that involves charging/discharging a small storage capacitor without the need for a PFC inductor. The OSMIUM microcontroller family and supporting components can be combined with commodity flyback DC-DC converters to displace higher-cost LLC solutions, achieving an […]
DC link capacitors designed for low inductance and low-loss winding
New Yorker Electronics has announced the release of the new 944L Series of low inductance, high current DC link film capacitors from Cornell Dubilier Electronics (CDE). Type 944L DC Link capacitors are specifically designed for fast-switching power conversion applications. Their low inductance construction and low-loss winding technology make them ideal for the next generation of […]
Low inductance DC link film capacitors; more power, smaller footprint
To support the needs of high-frequency switching inverters and converters, Cornell Dubilier Electronics, Inc. has announced its 944L Series of low inductance, high current DC link film capacitors. Applications in green energy inverter systems and Level 3 EV chargers are placing greater demands on power conversion circuits that deliver more power with a smaller footprint. […]
Devices added to radial-leaded aluminum electrolytic capacitors
KYOCERA AVX released an extensive new range of radial-leaded aluminum electrolytic capacitors engineered for use in industrial, communications, and consumer electronics applications and available with a 24-week lead time, which is currently one of the shortest lead times of any competing capacitor on the market. The new radial-leaded range is comprised of REH, REF, and REH […]
Tiny prismatic supercapacitor enables design of batteryless or more battery-efficiency devices
CAP-XX has launched its DMV750 ultra-thin 2.2mm prismatic 3V supercapacitor to provide high performance for IoT, medical, and other space-constrained and mission-critical electronic devices. Ultra-thin 3V prismatic supercap can efficiently store and release the energy needed to drive peak-power functions in IoT, medical and other space-constrained and mission-critical electronic devices. The 750mF supercap can complement 3V coin cell […]
Automotive super caps reach to 100F
KYOCERA AVX is proud to announce its first automotive-qualified supercapacitors, also known as cylindrical, electrochemical, double-layer capacitors. The five new automotive-qualified SCC Series supercapacitors are tested and qualified to the stringent AEC-Q200 standard, which proves their ability to reliably withstand test conditions designed to replicate challenging mechanical and electrical conditions common in automotive applications. SCC Series supercapacitors […]
1-W power modules integrate switching, control, transformer, input/output capacitors
Würth Elektronik has extended the product families of its MagI³C power modules with the MagI³C-FIMM Fixed Isolated MicroModule. It combines the features of an isolated power module with those of a MicroModule in an LGA-7 package and measures just 9 mm x 7 mm x 3.1 mm. The isolation capacitance between the primary and secondary windings […]
Advanced custom capacitors target next-gen level-3 EV chargers
In response to the rapidly growing demand for higher-performance DC link capacitors for EV chargers, Cornell Dubilier Electronics (CDE) has expanded its standard-product offerings and brought to light its advanced custom capacitor capabilities. While the inverter circuitry at the heart of EV charging stations may seem familiar to design engineers, there are operational, environmental, and mechanical […]
Film capacitors for DC links feature high energy, power density
TKD Corporation presents the B3271H series, new EPCOS film capacitors for DC link applications that feature high energy and power density. The capacitors are rated for voltages from 500 V DC to 1600 V DC, offer capacitance values from 0.47 µF to 170 µF, and are suitable for a maximum operating temperature of up to […]
