RS Components offers Vishay MLCCs
High temperature, radial-leaded, ceramic capacitors from Vishay are now available from RS Components. The HOTcap series of radial-leaded multi-layer ceramic capacitors (MLCCs) meet the extreme operating conditions demanded by automotive applications.
The K…H series of high operating temperature, radial-leaded MLCCs use noble metal electrodes and high reliability MLCC inserts. The capacitors have an unmatched maximum operating temperature of +175 degree C for all available ceramic dielectrics. These include an ultra-stable C0G dielectric, which delivers a capacitance change of ±30ppm/K across the -55 to +175 degree C operating temperature range; and the X0U dielectric, which has a capacitance change of +22% to -56% across the temperature range.
Qualified to AEC-Q200, the capacitors are suited for a range of automotive applications, including EMI filtering, for example in exhaust-gas and seat-position sensors; cable harnesses; and turbo-charger, throttle-valve and brake-system control.
Voltage ratings available are 50, 100 and 200V DC across both dielectrics. Capacitance values available range from 100 up to 12,0000pF (50V DC) for the C0G dielectric devices, and from 47,000 to 1,000,000pF (50V DC) for the X0U dielectric.
To accommodate extremely harsh operating conditions, the MLCC chips are manufactured using a wet-build process. Noble metal electrodes deliver high resistance to corrosion and oxidation, says the company. The capacitors 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. The RoHS-compliant devices also offer a flame-retardant epoxy resin coating, in accordance with UL94V-0
A sample kit of the K…H MLCC series is also available, with a total of 24 capacitors with variants differing in voltage rating, capacitance value and dielectric.