Aluminum Electrolytic Capacitor Selection 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
- ✗ Selecting voltage rating too close to operating voltage
- ✗ Ignoring ripple current requirements in high-frequency applications
- ✗ Inadequate heat dissipation design near heat-generating components
- ✗ Not considering temperature derating for long-life applications
📋 Customer Cases
Inverter Manufacturer A
Industrial Automation
Challenge
Capacitor early failure occurring within 2 years, lifespan not meeting 8-year design expectation
Solution
Reselected according to FAE guidance: increased voltage margin from 1.1x to 1.3x, implemented improved heat sink design, relocated capacitors away from IGBT module
Results
Capacitor operating temperature reduced to 55°C, lifespan extended from 2 years to 10+ years, meeting design goals with 25% margin