Part Number : HS108
Function : Super Capacitor ( Low ESR (26mΩ @ 1kHz) )
Manufactures : CAP ( CAP-XX (Australia) Pty Ltd )
DATASHEET HS108 SUPERCAPACITOR Rev1.1
Features High capacitance (1800mF DC) Low ESR (26m @ 1kHz) High peak current, high pulsed power Thin form factor Typical Applications Interim power, energy storage & load leveling. Examples include: Cache protection in Solid State Drives (SSD) and Hybrid Hard Drives (HHD) Drop test protection, battery hot swap, graceful shutdown & last gasp transmissions in industrial electronics such as handheld computers, PDAs, portable point of sale terminals, bar code scanners, data loggers, etc. RF power support for data cards, USB modems, PDAs, location trackers, sensors, etc. Electrical Specifications Table 1: Absolute Maximum Ratings Parameter Terminal Voltage Temperature Name Vc T Conditions www.DataSheet.net/ Min 0 -40 Max 2.9 +85 Units V °C Table 2: Electrical Characteristics Parameter Terminal Voltage Capacitance ESR Leakage Current1 RMS Current Peak Current 1 Name Vc C ESR IL IRMS IP 2 Conditions Min 0 Typical Max 2.75 Units V mF m µA DC, 25°C 1kHz, 25°C 2.75V, 25°C 72hrs 25°C 25°C 1800 ± 20% 26 ± 20% 1.0 5 20 A A 2 Refer to CAP-XX for details. Non-repetitive current. Table 3: Thickness HS108F HS108G No adhesive tape on underside of supercapacitor Adhesive tape on underside of supercapacitor, release tape removed 1.70mm 1.80mm HS108 Datasheet, Rev 1.1, 01-Feb-2009 ©2009 CAP-XX (Australia) Pty Ltd CAP-XX reserves the right to change the specification of its products and any data without notice.
A traditional capacitor stores energy in the electric field created by charge separation. The electric field normally exists in a dielectric which becomes polarised. The capacitance is proportional to the permittivity of the dielectric and the area of the plates, and inversely proportional to the separation distance of the plates. There is no intervening dielectric material in a supercapacitor. Most of the potential is dropped across the double layers, not a dielectric. Supercapacitors have a much higher capacitance than traditional capacitors because of the large equivalent area of the plates and the small effective separation distance of the plates. One gram of the electrode material can have an equivalent area of 2000m2, and the separation distance between an electrode and the layer of ions, the double layer, is in the nanometre range. Fig. 1 shows one cell of a typical carbon double layer supercapacitor. The physical construction is similar to that of a battery, with two electrodes immersed in an electrolyte and a separator between them. Unlike a battery however, there is no chemical energy storage. Within each supercapacitor, there are effectively two capacitors in series, each consisting of a carbon electrode and the adjacent layer of ions in the electrolyte. The ions are free to move anywhere within the electrolyte, penetrating the pores of the carbon electrodes and p […]