Eaton PHVL Supercapacitors

Eaton PHVL Supercapacitors are high reliability, high power, ultra-high capacitance energy storage devices utilizing electric double layer capacitor (EDLC) construction combined with proprietary materials and processes. Eaton PHVL Supercapacitors can be applied as the sole energy storage or in combination with batteries to optimize cost, lifetime, and run time. System requirements can range from a few microwatts to megawatts. PHVL features low ESR for high power density with environmentally friendly materials for a green power solution. Eaton PHVL Supercapacitors are maintenance-free with design lifetimes up to 20 years and operating temperatures as wide as -40°C to +85°C. The series offers a 0.47F to 5.0F capacitance range as well as 3.9V working voltage, and 5.0V surge voltage.


  • Low leakage current, low self-discharge
  • Large capacitance for high energy density
  • Ultra-low ESR for high power density


  • Pulse power
  • Water and gas meters
  • Battery assist for peak power - especially Lithium Thionyl (15-year life)
  • Internet of Things (IoT) sensors
  • Long duration discharges
    • Real-time clocks
    • Memory backup
  • Bridging or hold-up power


  • 0.47F to 5.0F capacitance range
  • 3.9V working voltage
  • 5.0V surge voltage
  • -10% to +30% (+20°C) capacitance tolerance
  • -40°C to +65°C operating temperature range
  • -40°C to +85°C extended operating temperature range
Published: 2021-03-30 | Updated: 2022-09-28