Tantalum - Polymer Capacitors

Part Number	Description / PDF	Quantity
TCJY476M016R0070E Elco (AVX)	CAP TANT POLY 47UF 16V 2917	990
TCME337M010R0010 Elco (AVX)	CAP TANT POLY 330UF 10V 2917	0
TCJX476M016R0070 Elco (AVX)	CAP TANT POLY 47UF 16V 2917	658
TCJD156M035R0070E Elco (AVX)	CAP TANT POLY 15UF 35V 2917	0
TCJD336M025R0060 Elco (AVX)	CAP TANT POLY 33UF 25V 2917	963
TCJD336M035R0070 Elco (AVX)	CAP TANT POLY 33UF 35V 2917	296
TCJD227M016R0050E Elco (AVX)	CAP TANT POLY 220UF 16V 2917	7
TCJD477M004R0015E Elco (AVX)	CAP TANT POLY 470UF 4V 2917	0
TCJB106M016R0200 Elco (AVX)	CAP TANT POLY 10UF 16V 1411	815
TCJA106M006R0300E Elco (AVX)	CAP TANT POLY 10UF 6.3V 1206	1957
TCJT226M010R0070E Elco (AVX)	CAP TANT POLY 22UF 10V 1411	0
TCNT475M035R0200 Elco (AVX)	CAP TANT POLY 4.7UF 35V 1411	0
TCJY337M004R0050E Elco (AVX)	CAP TANT POLY 330UF 4V 2917	0
F380J686MSALZT Elco (AVX)	CAP TANT POLY 68UF 6.3V 0805	1302
TCJC475M050R0200 Elco (AVX)	CAP TANT POLY 4.7UF 50V 2312	68
TCJY157M006R0040E Elco (AVX)	CAP TANT POLY 150UF 6.3V 2917	0
TCJB227M004R0070E Elco (AVX)	CAP TANT POLY 220UF 4V 1411	0
TCJB337M002R0045 Elco (AVX)	CAP TANT POLY 330UF 2.5V 1411	9888
TCN4477M016R0100E Elco (AVX)	CAP TANT POLY 470UF 16V 2924	4794
TCJY227M006R0025 Elco (AVX)	CAP TANT POLY 220UF 6.3V 2917	410

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.