UCY2D221MHD

The UCY2D221MHD is a radial-lead aluminum electrolytic capacitor in Nichicon’s UCY series, designed for miniature, high ripple‑current and long‑life applications. It provides 220 µF capacitance at a 200 V rating with polarized radial can packaging and is supplied in bulk or bag packing.

Engineered for demanding power applications, this part combines elevated ripple‑current capability and extended endurance at high temperature, making it suitable for power supply filtering and ballast circuits in automotive and industrial environments where AEC‑Q200 qualification and RoHS compliance are required.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a rated voltage of 200 V and tolerance of -20% to +20%.
• High ripple‑current capability — Low‑frequency ripple current 1.23 A (120 Hz) and high‑frequency ripple current 2.46 A (100 kHz), supporting high dynamic current environments.
• Long life at elevated temperature — Rated for 12,000 hours at +105°C under DC bias plus rated ripple current (endurance specified in datasheet).
• Wide operating temperature range — Functional from -40°C to +105°C.
• Loss and leakage characteristics — Tangent of loss angle (tan δ) 0.20 measured at 20°C, 120 Hz; specified leakage current 1,860 µA for this part.
• Package and mounting — Radial lead can with diameter φ16 mm and length 30.5 mm, lead spacing 7.5 mm (±0.5 mm); polarized for through‑hole mounting.
• Environmental and qualification — RoHS compliant and AEC‑Q200 qualified; available in mass production quantities.

Typical Applications

• Automotive power electronics — Bulk filtering and smoothing in automotive power supplies where AEC‑Q200 qualification and long life at 105°C are required.
• Power supply filtering — Input/output smoothing and energy storage in DC‑DC converters and general power supply modules benefiting from high ripple‑current capability.
• Ballast and lighting circuits — Suitable for ballast applications that demand sustained ripple handling and thermal endurance.

Unique Advantages

• High ripple‑current handling: Specified 1.23 A at 120 Hz and 2.46 A at 100 kHz supports heavy AC components on DC bus lines.
• Extended high‑temperature life: 12,000 hour endurance at +105°C enables longer service intervals in hot environments.
• AEC‑Q200 qualified: Provides the component qualification profile expected for automotive and similarly demanding applications.
• Compact radial can: φ16 × 30.5 mm package with 7.5 mm lead spacing simplifies through‑hole layout while conserving board area.
• Measured electrical stability: tan δ of 0.20 (20°C, 120 Hz) and defined leakage current support reliable circuit design and predictable behavior.
• Regulatory compliance: RoHS compliant for use in regulated markets and production environments.

Why Choose UCY2D221MHD?

UCY2D221MHD delivers a balanced combination of capacitance, high voltage rating and elevated ripple‑current capability in a compact radial package, backed by Nichicon’s UCY series design intent for high reliability and long life at +105°C. Its AEC‑Q200 qualification and RoHS compliance make it a practical choice for designs that require rugged performance and regulatory conformance.

This part is ideal for engineers building power supplies, ballast circuits and automotive power electronics who need a polarized electrolytic solution with documented endurance and frequency‑dependent ripple handling. Available in mass production quantities with standard bulk or bag packing, it supports both prototyping and volume production ramps.

Request a quote or submit an RFQ to receive pricing and lead‑time information for UCY2D221MHD. Our team can provide ordering details and assist with qualification and procurement needs.