For operating and backup power and energy storage, engineers can choose among batteries, supercapacitors, or “best of both” hybrid supercapacitors. The previous part of this article established the context for supercapacitors and explained their structure in simplistic terms; obviously, this is a component with deep physics, chemistry, materials-science considerations, and manufacturing issues. The first widely […]
Capacitors
Energy storage by the Farad, Part 1: Supercapacitor basics
Engineers can choose between batteries, supercapacitors, or “best of both” hybrid supercapacitors for operating and backup power and energy storage. Many systems operate from an available line-operated supply or replaceable batteries for power. However, in others, there is a need in many systems to continually capture, store, and then deliver energy to power the system. […]
Compact cylindrical dc-link capacitors mount on PCBs
TDK Corporation presents its new B32320I* series of compact cylindrical DC-link capacitors for mounting on PCBs. They are designed for voltages of 450 V DC to 1300 V DC and cover a capacitance range of 6.5 µF to 260 µF. The current handling capacity IRMS is up to 27.6 A (10 kHz, 60 °C) and […]
High-temperature power dc-link Film capacitor targets auto, energy apps
KEMET, part of the YAGEO Group and leading global electronic components supplier, announces its new C4AK high temperature, power film DC-Link capacitor designed for continuous operation up to 1,000 hours at 135℃. The C4AK series joins the C4AU (harsh environment) and C4AQ-P (125°C) family of power DC-Link film capacitors. These series offer higher capacitance density, […]
Power capacitors excel at dc link applications
TDK Corporation presents a new series of EPCOS power capacitors for DC link applications. The new capacitors are available for rated voltages of 700 V DC to 2000 V DC and cover a capacitance range of 20 µF to 270 µF. The current handling capacity can be up to 60 A at 65 °C with […]
Dielectric film improves efficiency of high-temperature, high-voltage capacitor applications
SABIC introduced its new 5-micron ELCRES HTV150 dielectric film for high-temperature, high-voltage, professional-grade capacitor applications, such as traction inverters for hybrid, plug-in hybrid, and battery electric vehicles (xEV). This new film, featuring high-heat performance up to 150°C, surpasses the temperature and voltage capabilities of incumbent products. ELCRES HTV150 film can help support the transition from […]
Super-caps cover 0.5 to 600-F range at up to 3.0 V
The DGH 2.7-V and DSF 3.0-V series supercapacitors (aka EDLCs or ultracapacitors) are used to supplement rechargeable batteries or as replacements for batteries in a diverse range of applications. These new components add powerful options for engineers. According to Brendan Andrews, Cornell Dubilier Business Unit Manager, “Our technology is used in a wide variety of […]
85/85 THB-rated AC filter capacitors designed for harsh environments
Designed for harsh environments, Cornell Dubilier’s 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, […]
AC filter capacitors optimized for harsh environments
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 […]
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 […]
