UCYW6820MHD6

The UCYW6820MHD6 is a radial-lead aluminum electrolytic capacitor from Nichicon’s UCY series, offering 82 µF capacitance at a 420 V rating. It is a polarized, miniature can-style capacitor designed for high-ripple, long-life applications where high voltage endurance and wide operating temperature are required.

Targeted at demanding power electronics and automotive use, this part combines a compact φ18 × 30.5 mm can, AEC-Q200 qualification, and a 12,000-hour endurance at 105°C to deliver reliable smoothing and filtering in high-voltage circuits.

Key Features

• Electrical Rating — 82 µF nominal capacitance with a rated voltage of 420 V and capacitance tolerance of −20% to +20%.
• High Ripple Current — Low-frequency ripple current of 730 mA (120 Hz) and high-frequency ripple capability of 1.46 A (100 kHz), enabling effective filtering under AC ripple loads.
• Loss Characteristics — Tangent of loss angle (tanδ) specified at 0.24 (measured at 20°C, 120 Hz, 420 V) for predictable dissipation behavior.
• Long Life / Endurance — Rated life of 12,000 hours at 105°C under rated conditions, with endurance performance defined after DC bias plus rated ripple current.
• Wide Operating Temperature — Specified operating range from −40°C to +105°C for use across a broad thermal envelope.
• Compact Radial Package — φ18 mm diameter, 30.5 mm length can with 7.5 mm lead spacing (±0.5 mm), delivered in bulk or bag packing for through-hole assembly.
• Quality & Compliance — AEC-Q200 qualified and RoHS-compliant, reflecting suitability for automotive and regulated applications.

Typical Applications

• Automotive power electronics — Suitable for high-voltage smoothing and energy buffering in automotive systems where AEC-Q200 qualification and wide temperature range are required.
• Power supplies — Used for bulk filtering and ripple suppression in high-voltage DC power supplies and converters, leveraging the 420 V rating and high ripple current capability.
• Ballast and industrial lighting — Applicable to ballast circuits and other high-voltage lighting control where long life at elevated temperature improves system longevity.

Unique Advantages

• High-voltage capability: 420 V rating allows use in higher-voltage DC circuits without series component changes.
• Designed for ripple loading: Specified ripple currents at 120 Hz and 100 kHz enable reliable operation across frequency ranges encountered in power electronics.
• Extended high-temperature life: 12,000-hour endurance at 105°C supports long-term stability in thermally challenging environments.
• Automotive-grade qualification: AEC-Q200 rating provides an added assurance for automotive and similarly demanding applications.
• Compact radial-can form: φ18 × 30.5 mm can with controlled lead spacing simplifies through-hole layout for compact power designs.
• Regulatory compliance: RoHS-compliant construction supports environmentally regulated product designs.

Why Choose UCYW6820MHD6?

UCYW6820MHD6 is positioned for designers who need a compact, high-voltage aluminum electrolytic capacitor with demonstrated endurance and ripple handling. Its combination of 82 µF at 420 V, defined ripple current ratings, and 12,000-hour life at 105°C makes it well suited to power supply, ballast, and automotive power electronics where reliability and temperature tolerance are critical.

Manufactured by Nichicon and AEC-Q200 qualified, this radial-lead UCY-series part delivers a balance of electrical performance and long-term stability for engineers specifying components for demanding high-voltage circuits.

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