Vishay – New multilayer ceramic chip capacitor integrates resistor

Nov 18 2011 - Passives [More Passives Articles]

A new multilayer ceramic chip capacitor (MLCC), from Vishay, features an integrated resistor and low electrostrictive ceramic formulation. For high-pulse-current applications, the VJ controlled discharge capacitor (CDC) offers ‘excellent’ reliability, high voltage ratings from 1kVDC to 1.5kVDC, and a capacitance range from 33nF to 560nF, says the company.

The integration of a high-capacitance MLCC with a bleed resistor on its surface allows the VJ CDC to discharge more rapidly, while also reducing board space requirements and assembly costs. Typical applications for the device include detonation devices (munitions, pyrotechnics, blasting) and electronic fuzing.

The capacitor released today is manufactured in Noble Metal Electrode (NME) technology with a wet build process. The VJ CDC features a low electrostrictive ceramic formulation for repeated charge and discharge cycles, allowing the device to achieve very high field reliability.

The VJ CDC is offered in the 3040, 3640, and 4044 case sizes, and is available with X7R and X5P dielectrics. The device features a wide capacitance range of 33nF to 220nF in the 3040 case size, 47nF to 330nF in the 3640, and 100nF to 560nF in the 4044.

The capacitor offers a high operating temperature range of -55C to +125C and a temperature coefficient of capacitance (TCC) of ±10% from -55C to +85C with the X5P dielectric and ±15% from -55C to +125C for the X7R. The device is halogen-free according to the IEC 61249-2-21 definition, says the company.

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