Product Type: Capacitors

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

Applications

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

944L Series – Low-Inductance DC Link Capacitors

Applications in green energy inverter systems and level 3 EV chargers are placing greater demands on power conversion circuits that deliver more power with a smaller footprint. The 944L Series was designed to support the needs of higher-frequency switching inverters and converters.

Unique low-inductance internal construction methods combined with low-loss metallized polypropylene film dielectric provide high ripple current capability and lower ESL. Stud or insert terminal options offer design flexibility in a rugged UL94V-0-rated flame-retardant plastic case and solid resin fill.

Highlights

  • Designed for higher switching frequencies
  • Up to 60% lower ESL (Equivalent Series Inductance)
  • High ripple current
  • M8 threaded stud and M5 insert termination options
  • Integrated mounting flanges

Applications

  • DC fast charging
  • Solar inverters
  • Motor drives
  • Induction heating
  • Lasers

Click here for a datasheet.

Type BLH, DC Link Capacitors for Harsh Environments

Green energy and electric transportation systems have pushed explosive growth in inverter markets. Many of these applications present harsh operating environments for power electronics circuitry. Often, these applications demand a high percentage of uptime, increasing the need for highly reliable components. In response, CDE’s BLH series of DC-Link capacitors have been designed and tested to exceed the industry’s most stringent requirements for high humidity, vibration testing, and thermal cycling.

The Temperature, Humidity at Bias (THB) test exposes parts to the harsh conditions of 85 °C at 85% relative humidity with rated voltage applied. This demanding test simulates the harsh operating conditions encountered in many commercial and industrial inverter applications. Such conditions can cause non-THB-rated capacitors to fail early from moisture penetration. While most capacitor makers validate their THB components for 1,000 hours under these conditions, CDE’s BLH series has been validated for 1,500 hours.

Utilizing the most advanced materials and processes, these board-mounted capacitors have been designed and tested to meet the rigors of automotive AEC-Q200 testing. Their solvent-resistant plastic case and epoxy encapsulation system are UL Recognized and meet IEC61071. Tin-plated copper RoHS-compliant terminations ensure excellent solderability. With their superior resistance to moisture and robust design, these capacitors are well suited for solar, wind, UPS, EV chargers, and other inverter applications that may be subjected to wide-ranging environmental conditions.

The series is optimized for DC link applications in medium- to high-power inverters. Capacitance ranges from 1.0 to 170 µF at 450-1,200 Vdc, with high rms ripple current ratings up to 36 Arms. When operated at a 70 °C hotspot temperature with rated voltage applied, their life expectancy is 100,000 hours.

  • Optimized for inverter DC-Link Applications
  • High capacitance
  • High ripple current up to 36 Arms
  • Self-healing and low-loss
  • THB 85 °C / 85 % RH, 1500h at rated voltage
  • UL Listed
  • AEC-Q200 Qualified

Applications Include:

DC Link for solar, EV, and other inverters that are subjected to the harshest environmental conditions, backup, UPS, portable power systems, motor drives, traction, and other transportation systems

Aluminum Electrolytic Capacitors

CDE offers a wide selection of standard and custom screw terminal, snap-in, and board mount capacitors, used extensively in the most critical applications, ranging from defibrillators and medical imaging to radar systems and UPS power backup for large data systems. Look to our innovative Flatpack series of aluminum electrolytic capacitors for ruggedized applications and space savings.

Products Include:

  • Axial
  • Radial
  • Surface Mount
  • Prismatic
  • Snap-In
  • Screw Terminal
  • Motor Start
  • Photoflash & Strobe

Click here for datasheets on specific products.

THA and THAS Series Thinpack

THA/THAS Series capacitors are thinner and more cost effective than most alternative technologies.  Unlike traditional cylindrical electrolytics, THA/THAS capacitors have sealed, laser-welded aluminum cases to eliminate the need for space-wasting end seal gaskets. Compared to cylindricals, flat THA and THAS capacitors are up to 60% smaller by volume. The design includes a valve to vent hydrogen gas buildups that may otherwise cause pressure-related swelling.  The 105°C-rated THAS Series adds a 0.38mm form-fitting stainless-steel sleeve to further prevent swelling at the highest temperatures. Can replace arrays of SMT, radial, or axial aluminum electrolytic and solid tantalum capacitors.

Applications

  • Tablets/Laptops
  • Specialized instruments
  • LED driver modules
  • Compact power supplies
  • Drones and RPV’s
  • Set-top boxes
  • Narrow
  • 1U rack-mounted devices
  • Video monitors
  • Solid state drives
  • Displays
  • Security systems

Click here for a datasheet on the THA Series.

Click here for a datasheet on the THAS Series.

Aluminum Polymer Capacitors

Possessing much lower ESR than other capacitor technologies, CDE’s aluminum polymer capacitors are ideal for board-level power conversion where high ripple current capability is needed. We offer this technology in molded chip, vertical chip (V-Chip), and radial form factors. For applications requiring the higher CV range of aluminum electrolytics, with the low ESR properties of the aluminum polymer, explore our Hybrid Polymer-Aluminum Electrolytic.

Products Include:

  • Radial
  • Vertical Chip
  • Molded Chip
  • Flat

Click here for datasheets on specific products.

Film, Paper-Film Capacitors

We offer a broad line of AC- and DC-rated film capacitors for industrial, military, and medical applications ranging from standard AC motor run types to custom DC pulse applicationsOnly the industry’s highest grades of film dielectric are used to ensure the best possible performance. We are one of just a few remaining manufacturers of paper and film combination dielectrics for high-performance power conversion and power supply applications.

Products Include:

  • Power Film, AC Applications
  • Power Film, DC Applications
  • Axial
  • Radial
  • SMT
  • X2 and Arc Suppression

Click here for datasheets on specific products.

Mica Capacitors

As the inventor of the mica capacitor, we are the world’s foremost authority and largest manufacturer of mica dielectric capacitors. Our RF mica capacitors feature superior high Q performance without the undesirable properties associated with ceramic and porcelain capacitors. Cornell Dubilier mica capacitors are extensively used in military, aerospace, and medical applications, offering both COTS and Military-Grade capacitors with established reliability.

Products Include:

  • Dipped
  • Surface Mount
  • Transmitting
  • Partial Discharge Coupling

Click here for datasheets on specific products.

Supercapacitors

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.

Power Supply Pulse Current

Tape Wrap and Fill Polypropylene

Polypropylene Film Foil and Metallized Polypropylene offer the most stable electrical characteristics over temperature and frequency. While polypropylene has not caught up to polyester with respect to dielectric constant, it has surpassed polyester in dielectric strength making it very compatible at voltages of 600V and above. Polypropylene is the most widely used dielectric in the industry. Depending on the application, ASC offers products ranging from lower voltages to higher voltages, low current to high current, and a multitude of termination styles.

Tape Wrap and Fill Polyester

Polyester Film Foil and Metallized Polyester were the first film capacitor product lines. With a dielectric constant of over three, it has volume efficiency superior to polypropylene. With film thicknesses down to 0.9 microns, small package sizes are achieved. Depending on the end applications, ASC offers a variety of polyester products ranging from foil to metallized, low voltage to high voltage and low current to higher currents.