Tantalum Capacitors – Series Structure and ESR Characteristics

Technology Overview

Tantalum capacitors are polarized electrolytic capacitors that provide stable capacitance, low leakage current, and high volumetric efficiency. They are widely used in DC filtering, decoupling, and timing circuits where stable electrical performance is required.

Product Types

• Dipped tantalum capacitors
• Chip tantalum capacitors
• SMD tantalum capacitors
• Polymer tantalum capacitors
• Hybrid tantalum capacitors

Popular Series

• TS19 – Dipped tantalum capacitor
• TS20 – Chip tantalum capacitor (SMD)
• TS20L – Low ESR chip tantalum capacitor
• TS20S – Super low ESR conductive polymer chip tantalum capacitor

Electrical Characteristics

• Stable capacitance under DC bias
• Low leakage current
• Low ESR options for high ripple current applications
• Polymer technology for improved frequency response

Applications

• Power supply decoupling
• DC filtering
• Signal coupling
• Portable and industrial electronics

Design Considerations

• Apply voltage derating for reliability
• Select ESR level based on ripple current requirements
• Confirm package size for PCB footprint compatibility
• Evaluate polymer versus manganese dioxide technology for frequency performance

For detailed electrical parameters and dimensional data, refer to the individual series datasheets.
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