Oil & Gas Downhole Wireline, Drilling, MWD and Completion Services


In specific disciplines of downhole instrumentation, high-energy capacitors are essential to achieve optimal energy density, endure intense shock and vibration, and ensure reliable, long-lasting performance even in extreme temperatures ranging from -20°C to 150°C, 175°C, and 200°C.


Quantic™ Evans HyCap-HT capacitors integrate the exceptional performance of a ruthenium oxide cathode, tantalum anode, and tantalum pentoxide dielectric. These capacitors excel in energy storage, offering the utmost energy density per unit volume. They are particularly well-suited for oil and gas applications, as they can reliably operate in temperatures reaching 200°C, even in harsh conditions involving intense shock and vibration. 

Key Features
  • The high dielectric constant of the Ta2O5 anode allows the capacitor to withstand high voltages
  • The RuO2 cathode has great capacity to store charge, increasing volumetric efficiency
  •  Unlimited shelf life
Environment and Export 
  • Standard terminations are 60/40 SnPb nickel "wire per N32 of MIL:STD:1276
  • Lead-free RoHS compliant options available
  • HyCap-HT capacitors are ECCN EAR99
  • Environment—Finish of Terminations
  • Standard leads Sn/Pb per N32 of MIL:STD:1276
  • For RoHS compliant leads add “-LF” at the end of the complete part number

Capacitor Life

  • HyCap-HT capacitors can withstand either 175°C or 200°C life test with appropriate voltage (see table on datasheet) for durations of 500–2000 hours dependent on P/N. Details available upon request.