Capacitor

In recent years, defense spending across European Union member states and NATO countries has continued to rise, driven by the Russia-Ukraine conflict and increasing regional security concerns. As a result, military modernization programs are accelerating, with strong investment in advanced platforms such as radar systems, counter-UAV technologies, and electronic warfare. At the same time, emerging technologies—including More-Electric Aircraft (MEA), GaN/SiC ...

TDK has announced its B3271xP series of DC link film capacitors, with a maximum operating temperature of +125 °C and no power derating up to +105 °C. The company highlights the thermal robustness makes them suitable for demanding automotive and industrial power electronics applications. For example, xEV traction inverters, onboard chargers, and DC-DC converters, where continuous ripple loads are common. ...

Vishay Intertechnology is extending its 193 PUR-SI series of miniature snap-in power aluminium electrolytic capacitors. There are now voltage ratings of 550V and 600V. The idea is to allow designers to handle DC bus voltages of up to 1100V with fewer components. PCB space “With their higher voltage ratings up to 600 V, the enhanced 193 PUR-SI series devices released ...

TDK has introduced hybrid polymer electrolytics that can resist 30g vibration, for automotive and industrial applications – tested to MIL-STD-202, Method 204. The parts are surface-mount, and their vibration resistance “is achieved by four posts that come out of the base plate of the component and stabilise the can in the event of mechanical shocks and vibrations”, according to the ...

Kyocera AVX has added stand-off legs to surface-mount multi-layer ceramic capacitors to improve bending resilience and suppress thermally-induced weld cracking. Operation is over -55 to +125°C. “KGP Series stacked MLCCs are engineered to optimise the performance of high-frequency applications in the industrial, alternative energy and down-hole oil and gas industries,” according to the company. Both J (pictured) and L style ...

Kyocera AVX is once again stacking its ceramic capacitors to increase CV product in a small footprint, this time for high reliability applications. ‘DSCC 25007 Mini BME Stacks’ combine multiple 2220-size capacitors with X7R characteristics (from its MIL-PRF-32535 range) using a legged lead-frame, have base metal electrodes, and are 100% Group A tested. 100% Group A and Group B testing ...

TDK has unveiled through-hole aluminum electrolytic capacitors designed to work at up to +140°C for automotive power steering, fan control and transmission systems. They come in axial-lead (B41699) and soldering star (B41799, see photo) types, rated to 25 or 35V, with capacitance ranging from 1,800 to 13,000µF. These are branded as “ultra compact” by the company. Picking a mid-range example, 4,700μF types ...

Knowles has brought out a range of X1/Y2 safety-certified surface-mount multilayer ceramic capacitors (MLCCs). The safety-certified MLCCs have a voltage rating between 310Vrms and 500Vrms, including the first class Y2 MLCC on the market to have a voltage rating as high as 500Vrms (Table 1). As a result, these MLCCs are suitable  for ensuring safe operation of  high-power AC/DC converters. ...

Thanks for the help with the mystery tantalum capacitor on the Jay Electronics motor controller board – that is on its way to the bin as a consequence. Now that I am properly worried about capacitor failure, I have taken photos of two of the capacitors on the same board (plus the lovely new electrolytic replacement already installed – bottom ...

Can anyone read the marking on this mystery tantalum capacitor? It is from the mid-1980s motor Jay Electronics driver board (hopefully) undergoing resurrection. Of three capacitance meters here, only one will make a stab at it in-circuit, where it reads ~600nF either way around. V47 seems an odd marking.