Tantalum - Polymer Capacitors

Part Number	Description / PDF	Quantity
TCOB1A336M8R ROHM Semiconductor	CAP TANT POLY 33UF 10V 1411	0
TCTOA0J107M8R-ZS1 ROHM Semiconductor	CAP TANT POLY 100UF 6.3V 1206	0
TCSOPL1A226M8R ROHM Semiconductor	CAP TANT POLY 22UF 10V 0805	1787
TCOB0J476M8R ROHM Semiconductor	CAP TANT POLY 47UF 6.3V 1411	0
TCSOPS0J476M8R-ZF1 ROHM Semiconductor	CAP TANT POLY 47UF 6.3V 0805	2990
TCSOM0J476M8R-ZM1 ROHM Semiconductor	CAP TANT POLY 47UF 6.3V 0603	29850
TCSOM0J226M8R ROHM Semiconductor	CAP TANT POLY 22UF 6.3V 0603	0
TCSOM1A106M8R-ZM1 ROHM Semiconductor	CAP TANT POLY 10UF 10V 0603	4246
TCSOPL1E475M8R-ZT1 ROHM Semiconductor	CAP TANT POLY 4.7UF 25V 0805	1978
TCTOM1A335M8R ROHM Semiconductor	CAP TANT POLY 3.3UF 10V 0603	3958
TCTOBL1V685M8R-ZF1 ROHM Semiconductor	CAP TANT POLY 6.8UF 35V 1411	2813
TCOB0J227M8R-EN1 ROHM Semiconductor	CAP TANT POLY 220UF 6.3V 1411	8965
TCTOBL0J157M8R-ZN1 ROHM Semiconductor	CAP TANT POLY 150UF 6.3V 1411	2500
TCOB0J107M8R-ES1 ROHM Semiconductor	CAP TANT POLY 100UF 6.3V 1411	1900
TCTOAS1A476M8R-ZB1 ROHM Semiconductor	CAP TANT POLY 47UF 10V 1206	2030
TCTOAS0J107M8R-ZW1 ROHM Semiconductor	CAP TANT POLY 100UF 6.3V 1206	3000
TCTOM1A475M8R ROHM Semiconductor	CAP TANT POLY 4.7UF 10V 0603	3341
TCOB1E156M8R ROHM Semiconductor	CAP TANT POLY 15UF 25V 1411	4000
TCOA0J106M8R ROHM Semiconductor	CAP TANT POLY 10UF 6.3V 1206	0
TCOA1A106M8R ROHM Semiconductor	CAP TANT POLY 10UF 10V 1206	0

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.