Automotive grade MLCCs operate up to +175°C

1st June 2016
Source: Vishay
Posted By : Nat Bowers
Automotive grade MLCCs operate up to +175°C

Designed for the most extreme automotive operating conditions, Vishay Intertechnology has announced a series of automotive grade, radial-leaded MLCCs. The K…H series "HOTcap" devices combine an industry-high (according to the manufacturer) operating temperature of +175°C for all available ceramic dielectrics with a wide capacitance range from 100pF to 1μF and low capacitance tolerances as tight as ±5%.

To accommodate the extremely harsh operating conditions of automotive applications, K…H series devices are equipped with an MLCC insert produced in a unique wet build process and featuring noble metal electrodes. AEC-Q200-qualified with PPAP available on request, the leaded MLCCs are more robust to mechanical stress and can withstand higher operating temperatures than SMD parts, while saving space by eliminating the need for a PCB. This makes the devices suited for EMI filtering in automotive applications such as exhaust gas and seat position sensors and cable harnesses as well as turbo charger, throttle valve and brake system controls.

Featuring an ultra-stable C0G dielectric with a capacitance change of ±30ppm/K and a X0U dielectric that fulfils the X7R specification of ±15% from -55C to +125°C and ±22% from -55 to +175°C, the Ceramic Class 1 and 2 MLCCs offer straight or crimped leads with spacing of 2.5 and 5.0mm. The devices' lead wires measure 0.5 or 0.6mm and are constructed of 100% tinned copper-clad steel. Nickel wires, ideal for welding, are available upon request. The RoHS-compliant capacitors offer a coating made of flame-retardant epoxy resin in accordance with UL 94 V-0.

Samples and production quantities of the extended K...H series will be available in Q2 2016, with lead times of eight weeks.


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