G Series Supercapacitors (4.5V, -40°C to +70°C)
The G series operates at 4.5V (dual cell devices) and at temperatures of up to 70C. The 4.5V dual cell devices are ideal for use with a lithium-ion battery pack, The ultra-small GZ series (20.0 x 15.0mm) offer best-in-class performance despite their diminutive size, and are ideal for use in the latest USB and ExpressCard 34 modems, in which they meet the peak power requirements of Class 12 GPRS radio frequency communication with minimal voltage ripple and low source current loads.
Cap-XX Series supercapacitors have been selected as one of
EDN’s “Hot 100 Products” of 2007 (Power Sources category).
This
fast developing supercapacitor technology is being utilised in an ever
expanding range of battery operated products to extend battery life or to reduce component
count in mains supported products. These new supercapacitors are truly
miniature - no bigger than a stick of chewing gum, offering a minimum
of mechanical design impact and very low ESR. Cap-XX supercapacitors
are the undisputed leader in extended capacitance.
Applications include high quality audio smoothing, solenoid actuation,
last gasp transmission, advanced battery power management etc..
Supercapacitor features
~
High power output for peak current loads (low ESR)
~ Sufficient energy storage to handle power surges
~ Low (-30 ºC) temperature operations
~ Smallest devices available for given ESR and capacitance
~ High power and energy density
Supercapacitors brighten prospects for power LED flash in camera phones
The combination of power LEDs and supercapacitors could provide the crucial breakthrough that will enable high quality LED flash in camera phones, with low current draw and small form factors.
Although some of today’s camera phones have good quality lenses, image-processing software and high numbers of pixels in the image sensor, there is one big area of development required to complete the picture. Few camera phones are able to take photos at the low light levels that users experience in restaurants, bars or inside their friends’ homes.
The key to taking good pictures in these environments is to produce enough light energy from the flash while the picture is being taken. One measure of light energy is derived by summing the illuminance of the light source (measured in lux) over the duration of the flash exposure time. A light energy of 10-15 lux.sec is thought to be ideal for high-resolution pictures at low light levels.
Many camera phones already use LEDs to provide some flash functionality, but these have not proved equal to the task as they do not provide enough light energy to illuminate their subjects sufficiently. Most of today's phones with LED flash drive the LEDs at 1-2W and provide less than 4 lux.sec of light energy at a distance of 1m from the phone to the subject, and less than 1 lux.sec at 2m.
Higher power LEDs would seem like the next obvious development. However, to achieve full light intensity, these require up to 400% more current than the 800-1000mA that a phone battery can usually provide for LED flash. .
Full Article from LED's Magazine
Ultra
Low Impedance from 10m ohm
Capacitance range 100mF ~ 2200mF
GW2
Double Layer Supercapacitors 4.5v
GW1
Double Layer Supercapacitors 2.3v
For
extended values, in a slightly larger format we can offer capacitance values
from 108mF to 2200mF
GS2
Double Layer Supercapacitors 4.5v
GS1
Double Layer Supercapacitors 2.3v
Click
here for the Super
Capacitor Design-Aid Calculator and support
High
Temperature Supecapacitors also available (HS Series)