Trimmer capacitors improved

1 November 2006 Passive Components

Murata says that its latest trimmer design has greater protection against flux invasion. The TZY2 series also offers better post-adjustment stability, superior resistance to soldering heat, accommodation of a built-in parallel capacitor and size reduction.

Only 1,25 mm high, the footprint is 2,5 x 3,2 mm. Nominal values range from 1,0 to 45 pF and use high stability low-loss COG dielectric to give a self-resonant frequency of almost 5 GHz.

Their unique construction with no plastic material improves soldering heat resistance and maintains very good characteristic performance after reflow soldering. Murata recommends reflow or hand-soldering, not immersing the trimmer in solder for the usual reasons.

Key features include: large capacitor range; improved resistance to flux invasion; higher post-soldering/adjustment stability; built-in capacitor capability; substrate compatibility with earlier TZV2 model.

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