UCY2E221MHD9

The UCY2E221MHD9 is a radial-lead aluminum electrolytic capacitor from Nichicon’s UCY series designed for high ripple current and long-life applications. It delivers 220 µF at 250 V in a compact φ16 × 35.5 mm can with 7.5 mm lead spacing, optimized for power-handling roles in demanding environments.

With a rated temperature range of -40°C to +105°C, AEC-Q200 qualification and long endurance (12,000 hours at 105°C), this capacitor is suited to power supply filtering, ballast circuits and automotive electronic modules where sustained ripple tolerance and durability are required.

Key Features

• Capacitance & Rated Voltage — 220 µF rated capacitance at 250 V provides bulk energy storage and smoothing for mid-voltage power rails.
• High Ripple Current — Low-frequency ripple current of 1.22 A at 120 Hz and high-frequency ripple current of 2.44 A at 100 kHz support demanding AC ripple and switching environments.
• Long Endurance — Rated for 12,000 hours at 105°C under DC bias plus rated ripple current, delivering predictable lifetime performance in high-temperature applications.
• Wide Operating Temperature — Specified for operation from -40°C to +105°C for reliable performance across temperature extremes.
• Electrical Losses and Leakage — Low dissipation factor (tan δ) of 0.20 (measured at 20°C, 120 Hz) and a measured leakage current of 2,300 µA, allowing efficient energy management in filter circuits.
• Packaging & Mounting — Radial lead (can) package with 7.5 mm lead spacing and available in bulk or bag packing for production or prototype use.
• Automotive-Grade Reliability — AEC-Q200 qualification and RoHS compliance for designs targeting automotive electronic modules and regulated markets.

Typical Applications

• Automotive Electronics — Smoothing and energy storage in in-vehicle power modules and auxiliary electronics where AEC-Q200 qualification is required.
• Power Supplies — Bulk filtering and ripple suppression for linear and switching power supplies operating up to 250 V.
• Ballast Circuits — High ripple and long-life characteristics make this part suitable for ballast and lighting driver applications.

Unique Advantages

• Sustained ripple handling: Rated ripple currents of 1.22 A (120 Hz) and 2.44 A (100 kHz) reduce voltage ripple under heavy AC or switching loads.
• Extended operational life: 12,000-hour endurance at 105°C supports longer maintenance intervals and predictable field lifetime.
• Automotive-grade qualification: AEC-Q200 rating enables use in regulated automotive electronic systems requiring proven reliability.
• Wide temperature tolerance: -40°C to +105°C operating range ensures stable performance across harsh thermal conditions.
• Compact radial can: φ16 × 35.5 mm package with 7.5 mm lead spacing provides a balance of capacitance and footprint for space-constrained designs.
• Regulatory compliance: RoHS-compliant construction supports environmental and regulatory requirements.

Why Choose UCY2E221MHD9?

The UCY2E221MHD9 combines high ripple capability, long endurance and automotive-grade qualification in a compact radial electrolytic package. It is targeted at engineers designing power supplies, ballast circuits and automotive electronic modules who need predictable long-term performance under continuous ripple and elevated temperatures.

Built on Nichicon’s UCY series platform, this capacitor provides verifiable electrical characteristics—220 µF at 250 V, low tan δ and specified leakage current—backed by a 12,000-hour life rating at 105°C, making it a practical choice for robust, production-grade power designs.

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