Ohmite Maxcap® Double-Layer Capacitors

Ohmite Maxcap® Double-Layer Capacitors (DLCs) are high-energy-density capacitors for memory backup and data-transmission power. Ohmite Maxcap Double-Layer Capacitors offer high volumetric efficiency (over 5F/in³), virtually unlimited service life, fast charge and discharge capability, and low leakage current. A Maxcap DLC the size of a thimble supports µA data retention currents of CMOS RAMs for up to several weeks. Microprocessors, small motors, and activators with current requirements from one to several hundred mA can be supported from several seconds to minutes. Maxcap DLCs never need replacing they do not undergo irreversible chemical reactions. Unlike aluminum electrolytic capacitors, they do not experience dry-up problems.

Features

High-energy-density capacitors for memory backup and data-transmission power
High capacity in small size
- Up to 100 times that of conventional capacitors
3.5V and 5.5V useful voltage ratings
- Ideal for CMOS operating voltage range
0.01F to 5.6F capacitance at 5.5V
Includes low-profile version
Ultra-long life
- Unlike batteries, Maxcap DLCs have no parasitic chemical reactions
- Can be fully charged and discharged indefinitely
- No “memory” effect

Applications

CMOS, RAMS, microprocessors, and timers for ICs
- Home appliances
  - TVs
  - Microwave ovens
  - Dishwashers
  - Refrigerators
Relays and solenoids
- Starters
- Igniters
- Actuators

Small motors and alarms
- Disc drives
- Coin metering devices
- Security systems
- Toys
Data transmission
- Vehicle tracking systems
- Utility meters

Ohmite Maxcap® Double-Layer Capacitors

Features

Applications

Application Circuit

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