UCY2C181MHD

The UCY2C181MHD is a miniature, radial‑lead aluminum electrolytic capacitor from Nichicon’s UCY series, designed for high reliability and sustained ripple performance. It delivers 180 µF at 160 V in a compact φ16 × 20 mm can with 7.5 mm lead spacing.

Engineered for demanding power applications—including power supplies and ballast circuits—and qualified to AEC‑Q200, this capacitor provides long life at elevated temperatures and high ripple current capability for robust operation in industrial and automotive systems.

Key Features

• Electrical Rating — 180 µF capacitance at a rated voltage of 160 V with ±20% tolerance (120 Hz, 20°C).
• High Ripple Current — Rated low‑frequency ripple current 1.0 A (120 Hz) and high‑frequency ripple current 2.0 A (100 kHz), enabling effective filtering under dynamic loads.
• Long Life and Endurance — Rated endurance of 10,000 hours at 105°C to support sustained high‑temperature operation.
• Low Loss — Tangent of loss angle (tan δ) max. 0.20 at 120 Hz, 20°C for the 160 V rating, supporting lower dissipation in power circuits.
• Leakage Current — Specified leakage current 1,252 µA, measurable after rated voltage application per datasheet conditions.
• Robust Operating Range — Temperature range from −40°C to +105°C for wide environmental suitability.
• Packaging & Mounting — Radial lead can (φ16 × 20L) with 7.5 mm lead spacing; supplied in bulk/bag packing (no terminal forming).
• Qualification & Compliance — AEC‑Q200 rated and RoHS compliant for regulated and automotive electronic applications.
• Polarized — Designed as a polarized electrolytic capacitor for DC power applications.

Typical Applications

• Automotive Power Electronics — Bulk and smoothing capacitor for DC power rails in AEC‑Q200 qualified automotive systems.
• Power Supplies — Input/output filtering and energy buffering in industrial and commercial power supplies and converters.
• Ballast Circuits — Suited for ballast and ballast‑style power modules where sustained ripple handling and temperature endurance are required.
• General Power Filtering — Decoupling and ripple suppression in motor drive and control electronics operating across −40°C to +105°C.

Unique Advantages

• High ripple tolerance: Rated ripple currents of 1.0 A (120 Hz) and 2.0 A (100 kHz) reduce thermal stress and improve stability in high‑demand power circuits.
• Extended high‑temperature life: 10,000‑hour endurance at 105°C supports longer maintenance intervals and reliable long‑term operation.
• AEC‑Q200 qualification: Enables use in automotive and harsh‑environment designs that require component reliability validation.
• Compact radial package: φ16 × 20 mm can with 7.5 mm lead spacing provides a high energy density option for space‑constrained PCB layouts.
• Regulatory readiness: RoHS compliance simplifies adoption in regulated markets.
• Predictable performance: Specified tan δ and leakage current figures allow clear thermal and loss budgeting in power system designs.

Why Choose UCY2C181MHD?

The UCY2C181MHD is positioned as a compact, high‑reliability electrolytic solution for power filtering and energy buffering in automotive and industrial systems. With a 160 V rating, 180 µF capacitance, AEC‑Q200 qualification, and 10,000 hours endurance at 105°C, it offers designers predictable ripple handling and long service life in demanding thermal environments.

This part is suited for engineers specifying robust, polarized bulk capacitance in applications where ripple performance, elevated temperature endurance, and qualification for automotive environments matter. Its combination of electrical specifications and compact radial package supports straightforward integration into existing power architectures.

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