UCY2W121MHD6

The UCY2W121MHD6 is a miniature, high-reliability aluminum electrolytic capacitor in a radial-lead can designed for high-voltage power applications. It delivers 120 µF capacitance at a 450 V rating with a compact φ18 × 46 mm can and 7.5 mm lead spacing.

Engineered for demanding environments, this part combines long lifetime and high ripple capability with AEC‑Q200 qualification and RoHS compliance, making it suitable for power supplies, ballast circuits and automotive electronic systems where sustained performance at elevated temperature is required.

Key Features

• Capacitance & Voltage — 120 µF capacitance rated for 450 V DC, with capacitance tolerance of −20% to +20%.
• High Ripple Capability — Low-frequency ripple current of 945 mA (120 Hz) and high-frequency ripple current of 1.89 A (100 kHz) to support continuous ripple loading in power-stage circuits.
• Long Operating Life — Endurance rated for 12,000 hours at 105°C under rated conditions, enabling extended service life in high-temperature applications.
• Electrical Loss & Leakage — Loss tangent (tanδ) 0.24 at 20°C/120 Hz and leakage current specified at 2,260 µA, providing predictable dissipation and leakage behavior for design margin calculations.
• Temperature Range — Operates from −40°C to +105°C to accommodate a wide range of thermal environments.
• Package & Mounting — Radial lead can with dimensions φ18 × 46 mm (L: 46 × D: 18 mm) and 7.5 mm lead spacing (±0.5 mm), supplied bulk or bag packed for through-hole assembly.
• Qualification & Compliance — AEC‑Q200 rated and RoHS compliant, aligning with reliability and environmental requirements for regulated designs.

Typical Applications

• Power Supplies — Bulk and smoothing capacitor in power supply rails where high voltage rating and ripple handling are required.
• Ballasts and Lighting Drives — Designed for ballast applications specified in the series datasheet, providing stable capacitance under continuous ripple loading.
• Automotive Electronic Systems — Suited to vehicle electronics that benefit from AEC‑Q200 qualification and extended high-temperature endurance.

Unique Advantages

• High-voltage capability: 450 V rating supports higher DC-link and HV supply applications without series stacking.
• Robust ripple performance: Explicit low- and high-frequency ripple current specifications (945 mA @120 Hz, 1.89 A @100 kHz) allow designers to size capacitors against actual ripple conditions.
• Extended life at elevated temperature: 12,000-hour endurance at 105°C reduces maintenance and replacement frequency in hot environments.
• Industry qualification: AEC‑Q200 rating and RoHS compliance provide traceable suitability for regulated and reliability-focused programs.
• Compact radial package: φ18 × 46 mm can with 7.5 mm lead spacing simplifies through-hole placement for repairable or high-current designs.

Why Choose UCY2W121MHD6?

UCY2W121MHD6 is positioned for designs that require a reliable, high-voltage aluminum electrolytic with verified ripple performance and long life at elevated temperature. Its combination of 450 V rating, defined ripple currents across frequencies, and 12,000‑hour endurance at 105°C make it appropriate for power supplies, ballast circuits, and AEC‑Q200‑level automotive electronics.

For engineering teams and procurement professionals seeking components that balance compact size, measurable electrical behavior, and industry qualification, UCY2W121MHD6 provides a verifiable option with predictable performance over extended service intervals.

Request a quote or contact sales to check availability, lead times and to discuss integration into your design.