Maxcap® Double Layer Capacitors
(Supercaps, Supercapacitors, Ultracapacitors)
Download Maxcap® Double Layer Capacitors Datasheet (PDF)
View the Capacitor Selection Guide
High Energy Density Capacitors for Backup Power
- NEW! One Farad in a 0.65" x 0.75" Package
- NEW! Up to 5.6 Farads in a Single 5.5 Volt Package
- NEW! Up to 5.0 Farad in a Single 11.0 Volt Package
- NEW! Surface mount package
Maxcap® double layer capacitors, Supercaps, Supercapacitors, and Ultracapacitors are a new electric energy storage device with:
- Extremely high volumetric efficiency (over 5.5 farads/in³)
- Virtually unlimited service life
- Fast/charge discharge capability
- Very low leakage current.
- Wide operating temperature range, including -40°C to +85°C (LT & LJ Series)
A Maxcap Double Layer Capacitor (commonly known as supercaps, supercapacitors, or ultracapacitors) are the size of a thimble and will support micro-amp data retention currents of CMOS RAMs for up to several weeks. Microprocessors, small motors and activators having current requirements from one to several hundred milliamps can be supported from several seconds to minutes.
- Very High Capacity in Small Size
Up to 100 times that of conventional capacitors. Circuit board space and equipment size can be reduced. - Useful Voltage Ratings:
3.5 & 5.5 volt - Ideal for CMOS operating voltage range.11 volt - LV Series, backup for relays, actuators, small motors. - Full Range of Sizes
From 0.01 to 5.6 farads @ 5.5 volts; 0.47, 1.0 & 5.0 farads @ 11 volts. - Low Profile
With LP, LK & LJ series. - Ultra Long Life
Unlike batteries, Maxcap LDCs have no parasitic chemical reactions. They can be fully charged and discharged indefinitely. There is no memory effect. - Maintenance Free
Maxcap DLCs can be placed in remote locations and require no access ports. Warranty claims are minimized. - Nonpolar
Assembly errors and costs are minimized. - Wide Operating Temperature Range
-40 to +85°C LJ & LT Series; -25 to +70°C LP. LC, LK, LF, LV, LX Series - Simple, Low Cost Circuitry
Since Maxcap DLCs do not require current limiting resistors or over-voltage protection, component costs and assembly time are reduced. - Safer Than Batteries
These capacitors will not explode or be damaged if short circuited. They can be installed with wave soldering equipment or surface mount package with IR or vapor phase reflow equipment
Typical Maxcap DLC Backup Power Applications
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Type of Load
|
Appliance or Equipment
|
|
CMOS RAMs and Microprocessors, Timers for Integrated Circuits
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Home appliances such as TVs, microwave ovens, dishwashers, and refrigerators; data routers, personal computers, energy management controls, thermostats, point of sale terminals, process controllers
|
|
Wireless Data Pulses
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Electric and water utility meters, vehicle tracking systems
|
|
Relays, Solenoids
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Starters, igniters, actuators
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Small Motors, Alarms
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Disc drives, coin metering devices, security systems, toys
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Maxcap Double Layer Capacitor Selection Guide
Select from Nine Standard Product Series The Maxcap DLC "Standard Products" offer a wide range of product geometries and electrical characteristics from which to choose. The major design considerations in selecting a Maxcap DLC for a given application include the load characteristic, the allowable voltage drop, required backup time, and available board space.
To help you select the best Maxcap Double layer Capacitor for your application the table below summarizes the key features of each product series.
|
Series
|
Key Features
|
Typical Backup Application
|
Capacitance
Range |
ESR Range
|
Typical*
Long Charge Leakage Current |
Operating Temp.
|
|
|
Max
|
Typical
|
||||||
|
LF (5.5 Volt)
|
Very low ESR
|
For short time, high current (up to amps)
|
0.047-1.5F
|
0.6-14Ω
|
0.2-7Ω
|
1-25µa
|
-25 to +75°C
|
|
LP (5.5 Volt)
|
Low height, low ESR
|
Days to weeks (Up to milliamps)
|
0.022-1.0F
|
7-60Ω
|
1-20Ω
|
1-25µa
|
-25 to +70°C
|
|
LC (5.5 Volt)
|
Reduced diameter, high energy density, low leakage current
|
Several weeks (microamps)
|
0.022-2.2F
|
35-220Ω
|
5-80Ω
|
0.1-6µa
|
-25 to +70°C
|
|
LK (5.5 Volt)
|
Reduced height, high energy density, low leakage current
|
Several weeks (microamps)
|
0.022-1.0F
|
20-200Ω
|
2-120Ω
|
0.1-4µa
|
-25 to +70°C
|
|
LT (5.5 Volt)
|
Expanded temperature range, low leakage current
|
Several weeks (microamps)
|
0.022-1.0F
|
60-220Ω
|
5-120Ω
|
0.1-4µa
|
-40 to +85°C
|
|
LV (11 Volt)
|
Increased voltage capability, low ESR
|
For short time, high current, high voltage (up to milliamps)
|
0.47, 1.0 & 5.0F
|
4-7Ω
|
0.8-5Ω
|
1-4µa
|
-25 to +70°C
|
|
NEW LX
(5.5 Volt) |
Our highest energy density product, low self discharge rate
|
Several weeks (microamps)
|
0.01-4.7F
|
35-300Ω
|
0.5-60Ω
|
0.7-15µa
|
-25 to +70°C
|
|
NEW LJ
(5.5 Volt) |
Expanded temperature range, low ESR
|
Several weeks (microamps)
|
0.1-5.6F
|
0.6-16Ω
|
0.2-10Ω
|
0.5-10µa
|
-40 to +85°C
|
|
NEW LM
(35 & 5.5 Volt) |
Surface mount package
|
Several weeks (microamps)
|
0.047-1.0F
|
7-50Ω
|
3-18Ω
|
0.5-10µa
|
-25 to +70°C
|
*Charging current after 72 hours with 1000Ω resistor in series with capacitor at 25°C
