UCY2D121MHD

The UCY2D121MHD is a miniature aluminum electrolytic capacitor in a radial lead can designed for high ripple current and long life. It combines a compact φ16 × 20 mm can with robust electrical performance for demanding power applications.

Targeted use cases include power supplies, ballasts and automotive electronics where high ripple handling, extended endurance and AEC‑Q200 qualification are required. The part offers a balance of capacitance, voltage rating and thermal endurance to support reliable system designs.

Key Features

• Capacitance & Voltage — 120 µF nominal capacitance with a rated voltage of 200 V and tolerance of −20% to +20%.
• High Ripple Capability — Low‑frequency ripple current of 775 mA at 120 Hz and high‑frequency ripple current of 1.55 A at 100 kHz for improved thermal and electrical endurance under AC loading.
• Loss Tangent — tanδ of 0.20 measured at 120 Hz, 20°C, supporting predictable AC behaviour in filtering and decoupling applications.
• Long Life Endurance — Rated for 10,000 hours at 105°C under DC bias plus rated ripple current, enabling extended service life in high‑temperature environments.
• Wide Operating Temperature — Specified from −40°C to +105°C to cover a broad range of operating conditions.
• Radial Lead Mechanical Format — φ16 × 20 mm can with 7.5 mm lead spacing (±0.5 mm), radial lead mounting for through‑hole assembly and mechanical robustness.
• Reliability & Compliance — AEC‑Q200 qualification and RoHS compliance for regulated and automotive electronics workflows.
• Packaging Options — Available in bulk (no terminal forming) or bag packing to suit prototyping and production handling.

Typical Applications

• Power Supplies — Bulk filtering and smoothing in AC/DC and DC/DC converters where high ripple current capability and long life improve regulator stability and lifetime.
• Automotive Electronics — Energy storage and decoupling in control modules and power distribution systems, leveraging AEC‑Q200 qualification and extended temperature range.
• Ballasts and Lighting — Input and output filtering in ballast circuits where miniature size and high ripple tolerance support compact, reliable lighting drivers.
• Industrial Equipment — Filtering and energy buffering in industrial power systems that require durable components with predictable ageing at elevated temperatures.

Unique Advantages

• High ripple tolerance: Specified 775 mA at 120 Hz and 1.55 A at 100 kHz, reducing thermal stress and extending capacitor service life under AC load.
• Long operational life: 10,000 hours at 105°C provides predictable endurance for designs exposed to sustained high temperatures.
• Automotive‑grade reliability: AEC‑Q200 qualification supports use in regulated automotive subsystems and other high‑reliability applications.
• Compact radial package: φ16 × 20 mm can and 7.5 mm lead spacing deliver a small footprint for through‑hole layouts while maintaining mechanical stability.
• Controlled loss characteristics: tanδ = 0.20 at 120 Hz, 20°C, enabling designers to account for dissipation in thermal and AC performance budgets.
• Compliance and handling: RoHS compliant with bulk or bag packing options to align with manufacturing and environmental requirements.

Why Choose UCY2D121MHD?

The UCY2D121MHD is positioned for engineers who need a compact, high‑reliability electrolytic capacitor with strong ripple handling and long thermal endurance. Its combination of 120 µF at 200 V, AEC‑Q200 qualification, and 10,000‑hour life at 105°C makes it suitable for power‑dense and regulated environments where predictable ageing and durability matter.

Choose this part when you require a through‑hole, radial lead capacitor that balances size, electrical performance and certified reliability for automotive, industrial and power electronics designs.

Request a quote or contact sales to discuss pricing, availability and custom packaging options for UCY2D121MHD.