CONDUCTIVE POLYMER HYBRID ALUMINUM ELECTROLYTIC CAPACITOR
Product Overview
Hybrid Aluminum Electrolytic Capacitors combine liquid electrolyte and conductive polymer technology to achieve low ESR while delivering the best of both capacitor technologies. They offer the low ESR and high ripple current capability of conductive polymer capacitors together with the high voltage ratings, long service life, and reliable open-circuit failure mode of conventional aluminum electrolytic capacitors.
Compared with traditional aluminum electrolytic capacitors, hybrid capacitors provide higher ripple current capability, lower ESR, longer life, and superior high-frequency and low-temperature performance. They also enable smaller designs and reduced PCB mounting area, making them an ideal solution for applications where MLCCs lack sufficient capacitance and conventional aluminum electrolytic capacitors cannot meet performance requirements. As a result, hybrid capacitors are widely used in automotive, industrial, server, and other high-reliability applications.
TAIYO YUDEN’s extensive product portfolio, proven track record, and flexible customization capabilities help meet a wide range of customer requirements. In addition to the standard HVX/HTX Series, we offer the HVX-J/HTX-J Series for higher ripple current applications and the HVX-K/HTX-K Series for higher capacitance and higher voltage requirements, providing optimized solutions for diverse design needs.
Product Features
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Extensive Product Lineup:
Available in a wide range of case sizes to fit diverse PCB layouts and space constraints. We continue to expand our portfolio with next-generation, higher-capacitance, and higher-performance products to support evolving design requirements.
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Proven Field Experience:
Widely adopted in global automotive applications, TAIYO YUDEN hybrid capacitors deliver proven performance and reliability. They are also trusted in industrial equipment and other mission-critical applications where long-term reliability is essential.
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High Performance in a Compact Design:
Low ESR, high ripple current capability, and long life time enable smaller component designs, reduced PCB area, and improved power supply efficiency. Excellent high-frequency performance also contributes to enhanced system stability.
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Full Customization Capabilities:
Beyond our standard product lineup, we provide application-specific solutions tailored to unique electrical and mechanical requirements. Through close collaboration with customers, we support the development of optimized designs for specialized applications.
Product Lineup
TAIYO YUDEN offers multiple distinct series designed to match the precise power, voltage, and footprint needs of your specific project.
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HVX/HTX Series | Standard
The reliable baseline for standard hybrid applications, delivering an optimized balance of cost and performance.
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HVX-J/HTX-J Series | Ultra-High Ripple Current & Capacity
Featuring industry-leading ripple current ratings, this series is explicitly engineered to survive and excel in high-ripple current environments.
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HVX-K/HTX-K Series | High Voltage & High Capacity
Building on the strengths of the J Series and its large D12.5 x 16.5 mm form factor, this variant extends operational limits with massive capacity expansions and voltages up to 80V for high-voltage applications.
>> Product Search: TAIYO YUDEN TY-COMPAS
Product Introduction (download): HVX/HTX -J & -K Series
Series Comparison
Feature / Metric
HVX-J/HTX-J Series
HVX-K/HTX-K Series
Market Positioning
High Ripple & High Capacity
High Capacity & High Voltage
Rated Voltage
25V to 63V
25V to 80V
Capacitance
Enhanced performance at standard HVX/HTX capacity
Further expanded capacity (e.g., up to 680µF)
ESR
Ultra-low 15mΩ (Lower than standard HVX/HTX)
Maintains 15mΩ
Ripple Current
3400mA (~1.7x higher than standard HVX/HTX)
Maintains 3400mA
Core Strength
Industry-leading allowable ripple current
Combines 80V rating with large capacity
Competitive Edge
Strong competitiveness for high-ripple current, high-capacitance applications
Strong competitiveness for high-capacitance, high-voltage applications
Series Selection Guide:
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Need Maximum Ripple Current Absorption? Choose the HVX-J/HTX-J Series for outstanding current handling.
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Need High Voltage and Deep Storage? Choose the HVX-K/HTX-K Series to securely scale your high-power designs.
Applications
From automotive electronics to industrial and networking equipment, hybrid aluminum electrolytic capacitors deliver the high ripple current capability, low ESR, thermal endurance, and compact form factor required by today's advanced power systems.
ECU & Motor Control
Motor control systems generate high ripple currents in the DC link due to PWM switching. Hybrid aluminum electrolytic capacitors provide high ripple current capability, ultra-low ESR, and low self-heating, ensuring long-term reliability even in high-temperature environments such as engine compartments.
Key Applications
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Engine ECU
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Transmission ECU
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Inverter ECU
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BMS
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Electric Power Steering
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Electric Water Pump
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Cooling Fan
ADAS
ADAS platforms rely on AI processors, SoCs, and FPGAs that create rapid load transients during real-time processing. Hybrid aluminum electrolytic capacitors stabilize the power supply with low ESR and high ripple current capability, while complementing MLCCs by providing effective low-frequency filtering in DC/DC converter input and output stages.
Key Applications
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Domain Controller
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Front Camera
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Surround View Camera
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Millimeter-Wave Radar
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LiDAR
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Domain Controller
Infotainment
Modern infotainment systems require stable power delivery to CPUs and GPUs with rapidly changing loads. Hybrid capacitors are used for input/output smoothing in DC/DC converters, while their low ESR helps suppress power supply noise in RF circuits, improving the performance of AM/FM, GPS, LTE, and Wi-Fi systems.
Key Applications
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IVI
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Digital Cluster
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HUD
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Display Audio
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TCU
What Is a Hybrid Capacitor?
A hybrid aluminum electrolytic capacitor combines the proven structure of a conventional aluminum electrolytic capacitor with a conductive polymer electrolyte.
Its internal structure consists of an aluminum anode foil, dielectric oxide layer, separator, electrolyte, and aluminum cathode foil. While conventional aluminum electrolytic capacitors use only a liquid electrolyte, hybrid capacitors utilize both a liquid electrolyte and a conductive polymer.
The conductive polymer provides excellent electrical conductivity, significantly reducing ESR (Equivalent Series Resistance). As a result, hybrid capacitors generate less heat, handle higher ripple currents, and deliver superior high-frequency performance. These characteristics contribute to more efficient and stable power supply circuits while extending capacitor lifespan through reduced heat generation.
Key Features of Hybrid Capacitors
Hybrid capacitors combine the advantages of both aluminum electrolytic capacitors and conductive polymer capacitors. They provide the low ESR and high ripple current capability of conductive polymer technology while maintaining the high voltage rating, long operational life, and the reliable open-circuit failure mode of conventional aluminum electrolytic capacitors.
Key Metric
Conductive Polymer
Aluminum Electrolytic
Hybrid Advantage
ESR
Best
High
Low (Excellent)
Ripple Current
Best
Good
Best
Voltage Rating
Limited
High
High
Lifespan
Standard
Long
Long
Low-Temp Stability
Best
Poor
Best
Failure Mode
Short Circuit
Open Circuit
Open Circuit
(High Reliability)
Comparison with Conventional Aluminum Electrolytic Capacitors
Compared to standard aluminum electrolytic capacitors of the same size and rating, performance is significantly improved: ripple current is approximately 4 times higher, ESR is reduced to about 1/7, and the lifetime is about 2 to 3 times longer.
On the other hand, if equivalent ripple current performance is maintained, it enables downsizing and a reduction in the mounting area, contributing to space savings in devices and a lower overall component count.
>> Feature Comparison (download):
Aluminum Electrolytic and Hybrid Capacitors
ESR, Temperature, and Leakage Current Characteristics
Hybrid capacitors maintain low ESR even at high frequencies, making them highly effective for ripple suppression and noise reduction. They also exhibit stable electrical characteristics over a wide temperature range, with minimal performance degradation at low temperatures.
Unlike solid polymer capacitors, whose leakage current may increase after reflow soldering, hybrid capacitors maintain stable leakage current characteristics after reflow, similar to conventional aluminum electrolytic capacitors.
These characteristics allow hybrid capacitors to simultaneously deliver low ESR, excellent high-frequency performance, stable low-temperature operation, and high reliability.
Market Position
Each capacitor technology has its own optimal operating range:
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MLCC: Small capacitance and high-frequency applications
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Hybrid Capacitors: Medium- to high-capacitance and high-frequency applications (16–80 V, 10–1800 μF)
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Aluminum Electrolytic Capacitors: Very high-capacitance applications (several thousand to over 10,000 μF)
Hybrid capacitors fill the performance gap where MLCCs cannot provide sufficient capacitance and conventional aluminum electrolytic capacitors cannot meet the required ESR or ripple current performance.
As a result, they are widely used in demanding applications such as ADAS, automotive ECUs and motor control systems, infotainment systems, servers, communication base stations, and industrial equipment, where high reliability and superior ripple current capability are essential.
The names of series noted in the text are excerpted from part numbers that indicate the types and characteristics of the products, and therefore are neither product names nor trademarks.
