UCY2G180MPD

The UCY2G180MPD is a miniature, radial‑lead aluminum electrolytic capacitor from Nichicon’s UCY series, engineered for high ripple current and long operational life. It delivers 18 µF capacitance at a 400 V rating in a compact φ10 × 25 mm can with 5 mm lead spacing.

Targeted at power supply and ballast applications — including automotive systems where AEC‑Q200 qualification is required — this part offers a combination of high voltage capability, extended endurance at elevated temperature, and RoHS compliance for reliable deployment in demanding environments.

Key Features

• Capacitance & Rated Voltage — 18 µF nominal capacitance with a 400 V rated voltage and tolerance of −20% to +20%.
• High Ripple Current — Low‑frequency ripple current of 235 mA (120 Hz) and high‑frequency ripple current of 470 mA (100 kHz), enabling effective smoothing on varied supply frequencies.
• Long Life Endurance — Specified for 12,000 hours at +105°C under rated conditions to support extended duty in thermal stress environments.
• Electrical Loss and Leakage — Tangent of loss angle (tan δ) of 0.24 (measured at 20°C, 120 Hz) and a measured leakage current of 388 µA.
• Package & Mounting — Radial lead can (φ10 × 25 mm) with 5.0 mm lead spacing (±0.5 mm tolerance); available in bulk (no terminal forming) or bag packing.
• Temperature Range & Compliance — Operating range −40°C to +105°C and RoHS compliant; AEC‑Q200 qualified for automotive reliability requirements.
• Frequency Coefficient for Ripple — Series coefficients: 50 Hz = 0.80, 120 Hz = 1.00, 1 kHz = 1.60, 10 kHz = 1.80, ≥100 kHz = 2.00 (useful for ripple scaling across frequencies).

Typical Applications

• Automotive power systems — High voltage rating and AEC‑Q200 qualification make this capacitor suitable for filtering and energy buffering in automotive power electronics.
• Power supplies — Compact radial can and high ripple capability support DC bus smoothing and bulk decoupling in power supply designs.
• Ballasts and lighting drivers — Designed for ballast applications where sustained ripple handling and long life at elevated temperature are required.

Unique Advantages

• High‑voltage support: 400 V rating enables use on higher‑voltage rails without up‑stacking components.
• Validated ripple performance: Specified ripple currents at low and high frequencies provide predictable thermal and lifecycle behavior in real designs.
• Extended thermal endurance: 12,000 hours at +105°C ensures durability in high‑temperature applications and reduces maintenance/replacement cycles.
• AEC‑Q200 qualification: Conforms to automotive reliability expectations for designs requiring qualified components.
• Compact radial form factor: φ10 × 25 mm can with 5 mm lead spacing delivers high energy density in a space‑efficient package.
• Standards and environmental compliance: RoHS compliant and shipped in practical bulk or bag packing options for production use.

Why Choose UCY2G180MPD?

UCY2G180MPD is positioned for engineers who need a compact, high‑voltage electrolytic capacitor with demonstrable ripple handling and long life at elevated temperature. Its combination of 18 µF at 400 V, AEC‑Q200 qualification, and 12,000‑hour endurance at +105°C makes it suitable for demanding power and ballast applications where reliability and predictable performance matter.

Choose this part when your design requires a verified, series‑backed solution from the Nichicon UCY family that balances size, voltage capability, and sustained ripple performance in harsh operating conditions.

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