LF series EDLCs provide back-up for smart grids
Panasonic Automotive & Industrial Systems Europe (PAISE) has introduced the LF series of stacked-coin type electric double layer capacitors (EDLCs). The LF series offers low resistance, and minimal leakage current, and have a rated lifetime of 6,000 hours – the longest available in the market, claims PAISE.
The LF series of capacitors have a 5.5V nominal rating, capacitance of 1Farad, and operate across the wide temperature range of -40 to +85 degree C. Panasonic adds that the LF series is optimised for smart meter and grid deployment applications in the European market.
The gold capacitors achieve far better capacitance than aluminium electrolytic capacitors (up to 1,000 times greater, says Panasonic). They also exhibit superior charge and discharge performance compared to secondary batteries. The additional benefits of over 500,000 rapid charge and discharge cycles and ageing characteristics make the Panasonic LF Series EDLCs suitable for applications such as real time clock (RTC) back-up for smart meters or industrial automation processors. The increasing density of cellular networks and backhaul channels for transmission line access in cellular and fibre optic deployment also benefit from the enhanced lifetime offered by the LF series.
The LF series capacitors have a nominal capacitance value of 1F rated at 5.5V in a compact radial housing, measuring less than 10mm high and 21.5mm in diameter. These EDLCs are guaranteed to maintain their capacitance and internal resistance without drifting at low temperatures. Other, competing products may experience a drastic change in capacitance and internal resistance, especially after the first three years of use, says the company. The LF series devices offer 6,000 hours extended lifetime, three times that of previous Panasonic coin-type EDLCs. The electrolyte used in the Panasonic EDLCs, means these parts also do not suffer from the “wetting effect”.
The capacitors meet demands for scaleable and reliable back-up for infrastructure deployment, together with an extended lifetime for new use cases, says PAISEU.
