Electric Double Layer Capacitors EP-Series

Panasonic Electric Double Layer Capacitors (Gold Capacitors) were developed by the Central Research Laboratory of Panasonic in 1972, then, introduced to the market on a commercial basis in 1978. As these capacitors perform like a battery they are ideally suited for applications requiring a secondary power source such as backup energy for microprocessors (real time clock etc.) and energy storage for chargers or solar batteries.
Gold Capacitor

Panasonic Gold Capacitors are the ideal replacement of a secondary battery. Their main advantages against a battery are:
Panasonic Gold Capacitors are available up to 5.5 Volt and up to 70 Farads. There are three different packages (coin, stacked coin, radial leaded) available, design depends on backup current and soldering conditions (flow / reflow). For higher ambient temperature applications Panasonic offers an 85°C product.

SMD Gold Capacitor EP Series

For Reflow Soldering Panasonic introduced the first SMD Gold Capacitor in 2002.
The latest product with this technology is Panasonics new EP series. This EP series is the world smallest Electric Double Layer Capacitor. The size code is 311, which means 3.8 mm dia with a height of just 1.1 mm (excluding terminals). In comparison to the current EN (size code 614) series this is a volume reduction of approx. 70%!

Due to this size the product is suitable for all small mobile devices, e.g. mobile phones, keyless entry systems, thermocontrol units or PDA's. With more and more advanced functions, these devices require backup solutions for memory backup and clock function.

Technical Data:

  • Part Number: EECEP0E333A
  • Rated Voltage: 2.6 V and 3,3V
  • Capacitance: 0.033 F
  • Internal Resistance: less than 350 Ohms
  • Temperature: -10°C to 60°C  
The EP series is suitable for high temperature lead-free reflow soldering with a peak of 260°C.
Gold Capacitor EP-Series