Wire capacitors

Vishay has released the NC series of thin film, single-value chip and wire capacitors.

With capacitance values from 0.5 to 1000 pF, the devices are claimed to offer smaller size, better performance, and superior stability when compared with thick film.

Designed for assembly in hybrid circuits using conventional wire-bonding - one epoxy attach and one wire bond - the five models provide layout flexibility in RFI and EMI filters, bypass capacitors, CMOS digital filters, and low-pass filters in smart cards, passive electronic ID tags, and other hybrid products.

The NCA, NCB, NCC, NCD and NCE devices are available with a combination silicon dioxide/silicon nitride dielectric (MNOS) or, for microwave or high-frequency applications in which low dielectric absorption is required, with a silicon dioxide dielectric (MOS).

NCA capacitors offer a range of 0.5 to 51 pF; NCB, 33 to 100 pF; NCC, 56 to 220 pF; NCD, 150 to 510 pF; and NCE, 360 to 1000 pF. Tolerances down to ±2.5% are available.

NCA, NCB and NCC capacitors each feature a single top contact, while the larger NCD and NCE versions provide three parallel, connected top contacts for bonding. All five models feature a semiconductor silicon substrate, an aluminium bond pad and a gold baking.