Tantalum - Polymer Capacitors

Part Number	Description / PDF	Quantity
TCJE107M020R0045 Elco (AVX)	CAP TANT POLY 100UF 20V 2917	0
TCJU157M025R0070E Elco (AVX)	CAP TANT POLY 150UF 25V 2924	1094
TCJB106M025R0100E Elco (AVX)	CAP TANT POLY 10UF 25V 1411	1264
TCJB107M004R0070 Elco (AVX)	CAP TANT POLY 100UF 4V 1411	5682
TCNS107M006R0250E Elco (AVX)	CAP TANT POLY 100UF 6.3V 1206	5000
TCJB227M002S0070 Elco (AVX)	CAP TANT POLYMER	0
TCJA107M004R0200E Elco (AVX)	CAP TANT POLY 100UF 4V 1206	4
TCJT686M004R0080E Elco (AVX)	CAP TANT POLY 68UF 4V 1411	0
TCJY336M025R0100 Elco (AVX)	CAP TANT POLY 33UF 25V 2917	0
TCJY477M004R0025 Elco (AVX)	CAP TANT POLY 470UF 4V 2917	727
TCJC335M050R0200 Elco (AVX)	CAP TANT POLY 3.3UF 50V 2312	31
TCJA156M010R0200E Elco (AVX)	CAP TANT POLY 15UF 10V 1206	2000
TCJY107M010R0025E Elco (AVX)	CAP TANT POLY 100UF 10V 2917	0
TCJE156M050R0100E Elco (AVX)	CAP TANT POLY 15UF 50V 2917	0
TCJT107M006R0070 Elco (AVX)	CAP TANT POLY 100UF 6.3V 1411	0
TCJD106M050R0120 Elco (AVX)	CAP TANT POLY 10UF 50V 2917	4935
TCJB105M063R0300 Elco (AVX)	CAP TANT POLY 1UF 63V 1411	3977
TCJE107M016R0040 Elco (AVX)	CAP TANT POLY 100UF 16V 2917	393
TCJB336M010R0070E Elco (AVX)	CAP TANT POLY 33UF 10V 1411	4028
TCJD685M075R0120 Elco (AVX)	CAP TANT POLY 6.8UF 75V 2917	957

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.