Tantalum - Polymer Capacitors

Part Number	Description / PDF	Quantity
6TPG100MG Panasonic	CAP TANT POLY 100UF 6.3V 1411	0
6TPE220MAPB Panasonic	CAP TANT POLY 220UF 6.3V 1411	0
2R5TPE220MI Panasonic	CAP TANT POLY 220UF 2.5V 2917	2076
16TQC220MD3 Panasonic	CAP TANT POLY 220UF 16V 2917	283
25TQC33MYF Panasonic	CAP TANT POLY 33UF 25V 2917	5940
6TPE330MAA Panasonic	CAP TANT POLY 330UF 6.3V 2917	1857
6TVE150M Panasonic	CAP TANT POLY 150UF 6.3V 2917	50
6TPB330ML Panasonic	CAP TANT POLY 330UF 6.3V 2917	0
6TPB330MAL Panasonic	CAP TANT POLY 330UF 6.3V 2917	1951
6TCF220M5L Panasonic	CAP TANT POLY 220UF 6.3V 2917	3453
ETCF680M5H Panasonic	CAP TANT POLY 680UF 2.5V 2917	1674
4TCE470MFL Panasonic	CAP TANT POLY 470UF 4V 2917	2400
4TPB330ML Panasonic	CAP TANT POLY 330UF 4V 2917	2320
2R5TPE330MI Panasonic	CAP TANT POLY 330UF 2.5V 2917	0
10TPB33M Panasonic	CAP TANT POLY 33UF 10V 1411	0
6THE150MI Panasonic	CAP TANT POLY 150UF 6.3V 2917	2120
6TPB330M Panasonic	CAP TANT POLY 330UF 6.3V 2917	24
6TPE330MIL Panasonic	CAP TANT POLY 330UF 6.3V 2917	0
25TQC22MYFT Panasonic	CAP TANT POLY 22UF 25V 2917	3240
10TVE68M Panasonic	CAP TANT POLY 68UF 10V 2917	2180

Tantalum - Polymer Capacitors

1. Overview

Tantalum polymer capacitors are a type of electrolytic capacitor utilizing conductive polymer as the electrolyte and tantalum metal as the anode. Compared to traditional liquid-electrolyte tantalum capacitors, they offer lower equivalent series resistance (ESR), higher thermal stability, and longer operational lifespan. Their ability to deliver stable capacitance in compact packages makes them critical components in modern electronics for power management, noise filtering, and energy storage.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Solid Polymer Electrolyte	Ultra-low ESR (<10m ), high ripple current tolerance	High-frequency DC-DC converters
Hybrid Polymer-Electrolyte	Combines polymer and liquid electrolyte for cost-performance balance	Consumer electronics power supplies
High-Voltage Polymer	Rated voltage >25V with enhanced dielectric strength	Industrial motor drives

3. Structure and Composition

Typical construction includes:

Anode: Sintered tantalum pellet with porous structure
Dielectric: Thin Ta₂O₅ layer formed via anodization
Electrolyte: Conductive polymer (e.g., PEDOT:PSS) coating
Cathode: Graphite/silver layered termination

The porous anode structure maximizes surface area while the polymer electrolyte provides solid-state reliability.

4. Key Technical Specifications

Parameter	Significance
Capacitance Range: 10 F - 1000 F	Determines energy storage capacity
Rated Voltage: 2.5V - 50V	Defines maximum operational voltage
ESR: <20m typical	Impacts power efficiency and thermal performance
Leakage Current: <0.01C*V	Affects battery-powered device standby consumption
Operating Temperature: -55 C to +125 C	Ensures reliability in harsh environments

5. Application Fields

Consumer Electronics: Smartphone power management modules
Automotive: Engine control units (ECUs) and ADAS systems
Industrial: Programmable logic controllers (PLCs)
Medical: Portable diagnostic equipment power filtering
Telecom: 5G base station RF amplifiers

6. Leading Manufacturers and Products

Manufacturer	Product Series	Key Features
Vishay	T55 Series	2000 hours life at 105 C
AVX	TACMIC	Military-grade vibration resistance
KEMET	A700 Series	Automotive AEC-Q200 qualified

7. Selection Guidelines

Key considerations:

Capacitance-voltage (CV) product must exceed circuit requirements by 20%
ESR requirements for high-frequency noise suppression
Package size constraints (e.g., 3216 vs 7343)
Temperature derating: Reduce rated voltage by 30% at 125 C
Failure mode analysis for safety-critical applications

8. Industry Trends

Emerging developments include:

Nano-structured polymer electrolytes enabling 30% higher capacitance density
Low-flammability materials for EV battery management systems
Embedded capacitor technology for 5G RF modules
AI-driven accelerated life testing methods

Market demand is projected to grow at 6.2% CAGR through 2030, driven by automotive electrification and IoT device proliferation.