Supercapacitor Selection and Application Guide
This technical reference document provides detailed information about jianghai product specifications, characteristics, and performance parameters. Use this information to support your design and analysis activities.
Electrical characteristics are specified over the operating temperature range unless otherwise noted. Parameters are guaranteed by design, testing, or statistical analysis. Typical values is the most likely parametric norm at 25°C.
Thermal characteristics require careful attention during system design. The junction-to-ambient thermal resistance depends on the mounting configuration, PCB copper area, and airflow conditions. Use thermal simulation tools to predict operating temperatures under actual conditions.
Reliability data is based on accelerated life testing and field failure analysis. Mean time between failures (MTBF) calculations follow industry-standard methodologies. Contact BeiLuo for detailed reliability reports and qualification data.
💡 FAE Insights
⚠️ Common Pitfalls
- ✗ Neglecting cell balancing in series configurations
- ✗ Underestimating self-discharge for backup time calculations
- ✗ Insufficient current rating for high-power pulse applications
- ✗ Overlooking temperature effects on ESR and capacitance
📋 Customer Cases
Smart Meter Manufacturer C
Smart Grid
Challenge
Need to maintain microcontroller operation 2-3 minutes after power failure to complete data saving and secure communication
Solution
Used Jianghai 300F/2.7V supercapacitor with integrated balancing and charging circuit, providing maintenance-free backup power
Results
Power-fail hold time reached 3.5 minutes, cycle life over 500,000 cycles, operating temperature range -40°C to +65°C, completely replacing batteries