UCY2C181MHD9

The UCY2C181MHD9 is a miniature, radial-lead aluminum electrolytic capacitor from Nichicon’s UCY series designed for high-ripple and long-life applications. It is a polarized, high-reliability device specified for demanding power environments, with AEC-Q200 qualification and mass-production availability.

Typical use cases include power supplies and ballast applications where elevated temperature endurance, compact size, and robust ripple-current capability are required. The capacitor delivers a balance of capacitance (180 µF), high voltage rating (160 V), and extended lifetime up to 12,000 hours at 105°C.

Key Features

• Electrical Capacity — 180 µF capacitance with tolerance of -20% to +20%, providing bulk energy storage in a compact package.
• Rated Voltage — 160 V DC rating suitable for higher-voltage power rails.
• High Ripple Current — 905 mA at 120 Hz (low frequency) and 1.81 A at 100 kHz (high frequency), enabling reliable handling of AC ripple in power circuits.
• Low Dissipation Factor — tanδ = 0.20 measured at 20°C, 120 Hz, supporting efficient operation with reduced heat generation under AC conditions.
• Leakage Current — Specified leakage current of 1252 µA for the part.
• Long Life & Temperature Endurance — Rated for 12,000 hours at 105°C; operating temperature range −40°C to +105°C for extended reliability in elevated-temperature environments.
• Mechanical & Mounting — Radial-lead can; size φ12.5 × 30.5 mm (L: 3.05 × D: 1.25 cm), lead spacing 5.0 mm (±0.5 mm), polarized orientation for through-hole assemblies.
• Packaging — Available in Bulk (No Terminal Forming) and Bag Packing for flexible assembly handling.
• Standards & Compliance — AEC-Q200 qualified and RoHS compliant.

Typical Applications

• Power Supplies — Bulk filtering and ripple smoothing on higher-voltage DC rails where high ripple current and long-term stability are needed.
• Ballasts — Energy storage and ripple absorption in ballast circuits that require compact, high-ripple components.
• Automotive Electronics — Power modules and control units that benefit from AEC-Q200 qualification and extended temperature range (−40°C to +105°C).
• High-Temperature Power Systems — Applications operating at elevated ambient temperatures where 12,000-hour endurance at 105°C supports long service life.

Unique Advantages

• High ripple handling: Rated for 905 mA at 120 Hz and 1.81 A at 100 kHz, enabling effective ripple management across a wide frequency range.
• Extended endurance at elevated temperature: 12,000 hours life rating at 105°C supports long-term reliability in heat-stressed environments.
• AEC-Q200 qualification: Provides documented high-reliability performance suitable for applications requiring component-level automotive qualification.
• Compact radial-can footprint: φ12.5 × 30.5 mm dimensions and 5 mm lead spacing deliver a small physical footprint for through-hole power designs.
• Practical manufacturing packaging: Bulk and bag packing options accommodate different assembly workflows and handling preferences.
• Regulatory compliance: RoHS-compliant construction supports environmental and regulatory requirements.

Why Choose UCY2C181MHD9?

The UCY2C181MHD9 combines high capacitance and a 160 V rating with substantial ripple-current capability and long-term endurance at elevated temperature, making it suitable for power-dense and temperature-challenged designs. Its AEC-Q200 qualification and RoHS compliance make it an appropriate choice where both reliability and regulatory conformity are important.

This part is well-suited for engineers specifying compact, through-hole capacitors for power supplies, ballast circuits, and automotive power electronics that require predictable performance over extended operating life. Available in established radial-can packaging and in mass production, UCY2C181MHD9 supports reliable BOM sourcing for production designs.

If you would like pricing, availability, or to request a quote for UCY2C181MHD9, please contact sales or submit a quote request referencing the part number.