Space-saving, radial-leaded devices built for extreme automotive conditions

03-06-2016 | Vishay | Passives

Vishay have announced a new series of automotive grade, radial-leaded multilayer ceramic chip capacitors (MLCCs) built for extreme automotive operating conditions. Vishay BCcomponents K…H series "HOTcap" devices combine an industry-high operating temperature of +175C 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, the 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 ideal for EMI filtering in automotive applications such as exhaust gas and seat position sensors; cable harnesses; and turbo charger, throttle valve, and brake system controls.

Featuring an ultra-stable C0G dielectric with a capacitance change of ±30ppm/K and a new X0U dielectric that fulfills the X7R specification of ±15% from -55C to +125C and ±22% from -55C to +175C, the Ceramic Class 1 and 2 MLCCs offer straight or crimped leads with spacing of 2.5mm and 5mm. The devices' lead wires measure 0.5mm 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.

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