Tantalum - Polymer Capacitors

Part Number	Description / PDF	Quantity
TCJB106M016R0200E Elco (AVX)	CAP TANT POLY 10UF 16V 1411	2888
TCJB226M025R0150 Elco (AVX)	CAP TANT POLY 22UF 25V 1411	7252
TCJC476M010R0100 Elco (AVX)	CAP TANT POLY 47UF 10V 2312	0
TCME337M010R0015E Elco (AVX)	CAP TANT POLY 330UF 10V 2917	315
TCN4337M020R0100E Elco (AVX)	CAP TANT POLY 330UF 20V 2924	1030
TCJB227M002R0070E Elco (AVX)	CAP TANT POLY 220UF 2.5V 1411	0
TCJE336M035R0055 Elco (AVX)	CAP TANT POLY 33UF 35V 2917	3923
TCQD477M004R0025 Elco (AVX)	CAP TANT POLY 470UF 4V 2917	10
TCBD157M006CRSZ0H00 Elco (AVX)	CAP TANT POLY 150UF 6.3V 2917	1000
TCME687M006R0012E Elco (AVX)	CAP TANT POLY 680UF 6.3V 2917	969
TCNT476M016R0150 Elco (AVX)	CAP TANT POLY 47UF 16V 1411	12592
TCJB336M010R0200E Elco (AVX)	CAP TANT POLY 33UF 10V 1411	2000
TCN4477M016R0100 Elco (AVX)	CAP TANT POLY 470UF 16V 2924	7138
TCJT476M006R0080 Elco (AVX)	CAP TANT POLY 47UF 6.3V 1411	1040
TCJY227M010R0025 Elco (AVX)	CAP TANT POLY 220UF 10V 2917	613
TCJT476M006R0055 Elco (AVX)	CAP TANT POLY 47UF 6.3V 1411	0
TCJD107M016R0050 Elco (AVX)	CAP TANT POLY 100UF 16V 2917	3041
TCJY107M010R0018 Elco (AVX)	CAP TANT POLY 100UF 10V 2917	1575
TCJA336M006R0200E Elco (AVX)	CAP TANT POLY 33UF 6.3V 1206	3999
TCJY336M025R0060E Elco (AVX)	CAP TANT POLY 33UF 25V 2917	658

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.