en.Wedoany.com Reported - TAIYO YUDEN has launched the HVX(-K) and HTX(-K) series of conductive polymer hybrid aluminum electrolytic capacitors, expanding its automotive-grade passive component lineup for high-voltage power supply applications. The new products are primarily designed for 48 V automotive electrical systems, including electric power steering, advanced driver-assistance systems (ADAS), and other safety- and control-related electronic devices, providing noise suppression and power smoothing functions.
The HVX(-K) and HTX(-K) series have passed the AEC-Q200 stress test certification for passive components, aiming to meet the demand of modern automotive electrical architectures for capacitors capable of handling higher operating voltages and ripple currents. As automakers transition from traditional 12 V systems to 48 V platforms to improve power efficiency, power components must deliver higher electrical performance and maintain long-term reliability at elevated operating temperatures.
Compared to the previous-generation HVX and HTX series devices, the new capacitors improve capacitance characteristics while supporting a maximum operating temperature of 135°C and an operating voltage of 80 V. The initial product series includes 46 models, offering seven case sizes ranging from 6.3 × 7.7 mm to 12.5 × 16.5 mm. One of the larger devices is the RAHTX181M1RGP5005K, rated at 80 V, with a rated ripple current of 3,900 mArms at 135°C.
Hybrid capacitors combine two electrolyte technologies—conductive polymer and traditional electrolyte solution—leveraging the low equivalent series resistance (ESR) of conductive polymers and the self-healing properties of aluminum electrolytic capacitors to achieve high ripple current capability, improved electrical performance, and enhanced reliability in demanding automotive environments.
These components are suitable for power supply filtering in increasingly complex electronic control systems. As the number of power conversion stages increases in electric vehicles, hybrid electric vehicles, and ADAS platforms, capacitors with higher rated voltages, greater current handling capacity, and compact form factors are critical for maintaining stable operation and reducing electrical noise.
Mass production of the HVX(-K) and HTX(-K) series began in June 2026 at ELNA's manufacturing facilities in Shirakawa and Aomori, Japan, with engineering samples now available. TAIYO YUDEN stated that it plans to further expand its hybrid capacitor product portfolio to meet the evolving demands of automotive power electronics and next-generation vehicle architectures.
