Commercially Available Capacitors at Cryogenic Temperatures

F. Teyssandier (1) , D. Prêle (2)

1 APC (UMR_7164) - AstroParticule et Cosmologie
2 APC - Cosmologie

Commercially available capacitors are not specified for operation at 77 K or 4 K, and some devices showed a dramatic decrease of capacitance at cryogenic temperature. Furthermore, for voltage biasing of cryogenic low impedance sensors it is very important to know parasitic resistance. In this case, the parasitic Equivalent Series Resistance (ESR) of the capacitor used for the AC-biasing is a bottleneck of the voltage biasing. Involved in TES development and SQUID multiplexing, we have characterized the capacitance and the ESR values of some commercially available capacitors at 77 K and 4 K.

Mots clés: Capacitor; ESR; Cryogenic

Domaines: Electronique

F. Teyssandier, D. Prêle. Commercially Available Capacitors at Cryogenic Temperatures. Ninth International Workshop on Low Temperature Electronics - WOLTE9, Jun 2010, Guaruja, Brazil. ⟨hal-00623399⟩