The D Cell Series (Previously the BC Series)

bc ser
BCAP0310
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Datasheet - BCAP0310
bc350
BCAP0350
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Datasheet - BCAP0350

Designed as a cylindrical package similar in size to a standard D sized battery, Maxwell Technologies'® D Cell™ BCAP0310 and BCAP0350 ultracapacitors are ideal for automotive subsystems, medical devices, uniterruptible power supplier, backup power and pulse, wind turbine pitch control, and many other applications requiring a pulse of energy that cannot be efficiently provided by a battery or power supply alone.

The BCAP0310 and BCAP0350 work in tandem with batteries for applications that require both a constant low power discharge for continual function and a pulse power for peak loads. In these applications, the device relieves batteries of peak power functions resulting in an extension of battery life and a reduction of overall battery size and cost.

Both cells can provide extended power availability, allowing critical information and functions to remain available during dips, sags, and outages in a power supply or battery change. And, like all Maxwell Technologies® ultracapacitors, the BCAP0310 and BCAP0350 are capable of accepting changes at the identical rate of discharge.

Features:

  • Dimensions similar to EN 60086-2 & EN 60285
  • Over 500,000 duty cycles
  • 10 year life capability
  • Higher energy vs electrolytic
  • Higher power vs batteries
  • Aluminum construction
  • Round, double ended design
  • Ultra-low internal resistance
  • Resistant against reverse polarity
  • UL recognized
  • RoHS Compliant

Applications

BOOSTCAP® ultracapacitors provide extended power availability, allowing critical information and functions to remain available during dips, sags, and outages in the main power source. In addition, they can relieve batteries of burst power functions, thereby reducing costs and maximizing space and energy efficiency. The ultracapacitors features a cylindrical design and an electrostatic storage capability that can cycle hundreds of thousands of charges and discharges without performance degradation.

Changes to mounting and soldering of Maxwell BC series Ultracapacitors

Some important changes regarding soldering and mounting of BC and PC series Ultracapacitors have taken place. Please click here to download the PDF application notes which highlight these changes and provide guidance on mounting and soldering.



CAPACITANCE VOLTAGE RESISTANCE CONNECTION
Nominal capacitance 310 F Rated voltage 2.7 V DC ESR, DC (max) 2.2mΩ Terminal Radial
Capacitance tolerance +20% / -0% Surge voltage 2.85 V DC Thermal resistance (Rth) 10.9°C/W  
TEMPERATURE            
Operating temperature range -40°C to +65°C          
Storage temperature range -40°C to +70°C ΔC        
Temperature characteristics            
ΔC ± 5% of value at 25°C   ΔR        
ΔR ± 150% of value at 25°C            
CURRENT            
Leakage current 0.45 mA After 72 hours at 25°C. Initial leakage current can be higher.
Short circuit current (lsc) 1,220 A CAUTION: Current possible with short circuit from UR. Do not use as an operating current.
Maximum continuous current 30 A          
Maximum peak current for 1Sec 240 A          
SIZE            
Dimensions (L x H) (mm) 61 x 33 See drawings for full details.        
Volume 0.053 L Not including lead lengths or sleeve        
Mass 62g          
POWER            
Power Density (Pd) 6,400 W/kg          
ENERGY            
Energy Density (Emax) 5.06 Wh/kg          
LIFESPAN Endurance After 1,000 hours application of rated voltage at 65°C. Capacitance change less than 20% decrease Internal resistance less than 25% increase Life test After 10 years at rated voltage and 25°C. Capacitance change ≤20% decrease Internal resistance ≤100% increase
CYCLES Cycles - Capacitors cycles between specified voltage and half rated voltage under constant current at 25°C (500,000 cycles) Capacitance change ≤20% decrease Internal resistance ≤100% increase

CAPACITANCE   VOLTAGE   RESISTANCE   CONNECTION
Nominal capacitance 350 F Rated voltage 2.7 V DC ESR, DC (max) 3.2mΩ Terminal Radial
Capacitance tolerance +20% / -0% Surge voltage 2.85 V DC Thermal resistance (Rth) 10.9°C/W  
    Isolation voltage N/A        
TEMPERATURE            
Operating temperature range -40°C to +65°C          
Storage temperature range -40°C to +70°C ΔC        
Temperature characteristics            
ΔC ± 5% of value at 25°C   ΔR        
ΔR ± 150% of value at 25°C            
CURRENT            
Leakage current 0.30 mA After 72 hours at 25°C. Initial leakage current can be higher.
Short circuit current (lsc) 840 A CAUTION: Current possible with short circuit from UR. Do not use as an operating current.
Maximum continuous current 25 A          
Maximum peak current for 1Sec 220 A          
SIZE            
Dimensions (L x H) (mm) 61 x 33 See drawings for full details.        
Volume 0.053 L Not including lead lengths or sleeve        
Mass 63g          
POWER            
Power Density (Pd) 4,300 W/kg          
ENERGY            
Energy Density (Emax) 5.62 Wh/kg          
LIFESPAN Endurance After 1,000 hours application of rated voltage at 65°C. Capacitance change less than 20% decrease Internal resistance less than 25% increase Life test After 10 years at rated voltage and 25°C. Capacitance change ≤20% decrease Internal resistance ≤100% increase
CYCLES Cycles - Capacitors cycles between specified voltage and half rated voltage under constant current at 25°C (500,000 cycles) Capacitance change ≤20% decrease Internal resistance ≤100% increase

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