Energy (electronics)

Powerful 3V 3400F supercapacitor

The Vinatech VEC3R0348 QG is a supercapacitor (ultracapacitor) developed for applications where high power, fast cycles and long life are required. With an energy storage of 4.25 Wh and a maximum power of 11.25 kW, this component in a compact housing (Ø 60 × 138 mm) offers an interesting alternative to conventional energy storage.

Electrical performance

  • Voltage and capacitance: 3.0 V at 3400 F (3.4 kF).
  • Current delivery: thanks to the extremely low ESR of 0.20 mΩ, peak currents of >3000 A are achievable, making the capacitor suitable for powerful energy pulses.

Longevity and reliability

  • Cycles: more than 1,000,000 charge and discharge cycles - significantly more than rechargeable batteries.
  • Temperature resistance: after 1500 hours of continuous operation at 65 °C, the capacity remains >80% and the ESR increases only minimally.


The VEC3R0348 QG is applicable in emergency power supplies, peak-power buffering, start/stop systems, robotics and medical systems, among others, where fast power delivery and high reliability are essential.

This supercapacitor combines high power density with a robust lifetime, making it a solid choice for engineers looking for reliable and low-maintenance energy storage.

Additional information

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