Product Type: Super Cap

LS0502SCD33 Series – Supercapacitor Protection IC

The LS0502SCD33 is a complete solution for a system with a backup storage capacitor or capacitor bank. It integrated input overvoltage, an overcurrent protection circuit, a reverse blocking switch, and a supercapacitor charging control circuit. It also has built-in cell balance to protect two-cell supercapacitor systems. When the main supply is present and above the minimum system supply voltage, the system will draw power from the input supply. At the same time, the integrated linear charger charges the storage element at up to 300 mA current. Once the storage element is charged, the circuit draws only 2.5 μA of current while it maintains the supercapacitor or other storage element in its ready state. When the main supply is removed, the integrated reverse blocking switch will block the current flow from the system rail to the input. The linear charger will be turned on to provide power to the system rail with a low resistance path with up to 2 A current. An integrated cell balancing circuit will keep monitoring the cell voltage when charging and keep the two cells voltage at the same level. The LS0502SCD33 is externally programmable for input current limit, input overvoltage, charge current limit, and charge voltage limit. It provides a flag signal when the input supply is unplugged so that the main system can take action. LS0502SCD33 is available in DFN3X3-10 package.

Features & Benefits

  • 2.5 V to 5.5 V System Voltage
  • 18 V Input Rating with Overvoltage Protection
  • Programmable 1.1 V to 5.3 V Cap Voltage Range
  • Programmable Supercapacitor Charge Current
  • Programmable Input Overcurrent Protection
  • Automatic Cell Balancing
  • Automatic Main/Backup Switchover
  • Up to 2 A Discharge Current
  • Programmable Voltage and Current Thresholds
  • ±2 % Threshold Accuracy
  • 2.5 µA Ready Quiescent Current
  • Small Solution Size
  • DFN Package


  • Handheld Industrial Equipment
  • Dash Camera
  • IoT
  • SmartMeter
  • Portable Device with Removable Battery


Also known as ultracapacitors, double-layer capacitors, or electrochemical double-layer capacitors (EDLCs). Whatever you call them, CDE likely has what you need, offering a comprehensive range of capacitance values and voltages. Our technology is used in a wide variety of applications from battery backup in smart meters to regenerative braking. Choose from board mountable coin type and radial form factors or work with us to develop higher voltage custom modules with active or passive balancing.

Products Include:

  • Supercapacitors Cells
  • Hybrid LIC Supercapacitor
  • Modules
  • Supercapacitor Coin Cells

Click here for datasheets on specific products.

Click here for a comparison sheet.

EDS/EDC Series Coin Cell-Style Electric Double-Layer Supercapacitors

The new EDC and EDS series of Coin Cell-style EDLC capacitors from Cornell Dubilier (CDE) can replace or extend battery life in onboard memory backup. With quick response and recharge times, these devices offer higher power than batteries and greater energy than typical aluminum electrolytic capacitors without degradation over millions of charge-discharge cycles.

Both series offer values from 0.047 to 1.5 Farad capacity, at voltages up to 6.3 WVDC for the EDC series; and 5.5 WVDC for the EDS series. The operating temperature for the EDS series is from -25 °C to +85 °C, with the EDC series offering -25 °C to +70 °C. Three case configurations are available for horizontal, vertical, and radial-lead PCB mounting.

EDC and EDS series capacitors are ready to board mount in such applications as real-time clock (RTC) backup, power failure backup, battery assist and in market segments such as smart metering, HVAC controls, building automation, communication systems, appliances, instruments, and other microprocessor-based devices. Because of their high volumetric power density, they can be an effective way to reduce board size and weight. Either series can be used as a drop-in replacement for similar-value capacitors recently discontinued by other manufacturers. Lead times are less than 12 weeks with popular values in stock.


  • Long life
  • High discharge currents
  • 70 ºC (EDC) or -85 ºC (EDS) operating temperature


  • Onboard memory backup circuits
  • Audio output circuits
  • Energy/Lighting
  • Smart utility meters (AMR)
  • Solar lights and energy storage
  • Power conversion
  • IoT-Energy harvesting/storage
  • Industrial controls
  • Telematics


KEMET offers a large range of supercapacitors in surface-mount and radial construction with high-performance capabilities. Supercapacitors have characteristics that are common to both batteries and traditional capacitors. As a result, a supercapacitor can be used as a secondary battery when applied to a DC circuit. These devices are best suited for use in low voltage, DC hold-up applications such as embedded microprocessor systems with flash memory.

NIC Components

NIC Components Corp., a leader in passive component technologies, has been manufacturing and designing passive components for over thirty five years. From a core business of Aluminum Electrolytic Capacitors, NIC has expanded its product offering to Capacitors, Resistors and Inductors with a growing line of specialty devices including Circuit Protection, Lighting and RF Components. NIC maintains engineering, sales and warehousing globally to oversee our production facilities and work closely with the factory sites for quality assurance and best in class customer support.

Cornell Dubilier

Since its founding in 1909, Cornell Dubilier, or CDE, has been dedicated to advancing capacitor technology for new applications. The company combines innovative products with engineering expertise to provide reliable component solutions for inverters, wind and solar power, electric vehicles, power supplies, motor drives, HVAC, motors, welding, aerospace, telecom, medical equipment, and UPS systems.

A global company, Cornell Dubilier has ISO-9001 certified manufacturing and distribution facilities in Liberty, SC; New Bedford, MA; Mexicali, Mexico; and Hong Kong.


KEMET Corporation is a global supplier of electronic components with over 160 patents and worldwide manufacturing plants that are leading the advancement of the most cutting-edge electrical solutions. The company offers customers the broadest selection of capacitor technologies in the industry across all dielectrics, along with an expanding range of electromechanical devices, electromagnetic compatibility solutions, and supercapacitors. KEMET provides solutions for those demanding the highest standards of quality, delivery, and service.


As North America’s largest manufacturer of aluminum electrolytic capacitors, Chemi-Con remains committed to the industry’s future through tireless and unmatched innovation. Through every product development project, we have our customer’s needs in mind—and are dedicated to supporting them amidst an ever-evolving industry landscape. Furthermore, our stringent, regulation-compliant environmental policy strives to minimize our—and customers’—carbon footprint. So we can promote advanced technology—and protect the planet.