UCY2V181MHD

The UCY2V181MHD is a radial lead aluminum electrolytic capacitor offering 180 µF capacitance at a 350 V rating in a compact φ18 × 40 mm can. It is a polarized, high-ripple current capacitor designed for applications that require robust DC filtering and long operational life under elevated temperature.

Key electrical characteristics include a capacitance tolerance of ±20%, tanδ of 0.24 (measured at 20°C, 120 Hz), measured leakage current of 2620 µA, and frequency-dependent ripple current capability that supports both low- and high-frequency applications. The part is AEC-Q200 qualified and RoHS compliant.

Key Features

• Electrical Rating: 180 µF nominal capacitance at a 350 V rated voltage with ±20% tolerance, suitable for high-voltage DC applications.
• High Ripple Current Capability: Low-frequency ripple current of 1.205 A at 120 Hz and high-frequency ripple current of 2.41 A at 100 kHz, enabling effective smoothing across a range of switching frequencies.
• Loss and Leakage Performance: Tangent of loss angle (tanδ) of 0.24 (20°C, 120 Hz) and measured leakage current of 2620 µA, specified for reliable long-term operation.
• Long Life Endurance: Rated endurance of 12,000 hours at 105°C under DC bias plus rated ripple current (with 10,000 hours for certain smaller sizes documented in the series datasheet).
• Operating Temperature Range: Specified for −40°C to +105°C to cover a wide thermal envelope in demanding environments.
• Package & Mounting: Radial lead can (φ18 × 40 mm) with 7.5 mm lead spacing, available in bulk or bag packing for through-hole assembly.
• Industry Qualification & Compliance: AEC-Q200 qualified and RoHS compliant for regulated markets and demanding reliability requirements.

Typical Applications

• Power Supplies: DC filtering and smoothing in high-voltage power supply stages where 350 V voltage rating and high ripple capability are required.
• Ballasts and Lighting Drivers: Energy-storing and ripple-handling duties in ballast circuits, leveraging the capacitor’s high ripple current and long life at elevated temperature.
• Automotive Electronics: Power filtering in automotive systems, supported by AEC-Q200 qualification and −40°C to +105°C operating range.

Unique Advantages

• High-voltage, high-capacitance combination: 180 µF at 350 V delivers bulk energy storage in a compact radial can format.
• Designed for ripple-heavy environments: Specified ripple currents of 1.205 A (120 Hz) and 2.41 A (100 kHz) permit use in both mains-frequency and switching-frequency applications.
• Proven long-term reliability: 12,000-hour endurance at 105°C supports extended service life in high-temperature installations.
• Automotive-grade qualification: AEC-Q200 status provides a documented reliability baseline for vehicle electronics designs.
• Engineered for real-world performance: Clear, measured parameters—tanδ, leakage current, and frequency coefficients—allow designers to predict behavior under specified test conditions.

Why Choose UCY2V181MHD?

The UCY2V181MHD combines a high-voltage 350 V rating with substantial capacitance (180 µF) and validated high ripple capability, making it a practical choice for designers needing reliable DC energy storage and filtering in demanding thermal and electrical environments. Its AEC-Q200 qualification, extended 12,000-hour life at 105°C, and RoHS compliance position it for use in long-life applications including automotive and industrial power electronics.

Choose this part when you need a through-hole, radial-lead aluminum electrolytic capacitor that provides predictable electrical characteristics (specified tanδ and leakage), compact packaging (φ18 × 40 mm, 7.5 mm lead spacing), and documented endurance under DC bias plus ripple current.

Request a quote or contact sales to check availability, lead times, and volume pricing for UCY2V181MHD.