UCP2W121MHD

The UCP2W121MHD is a radial-lead aluminum electrolytic capacitor from Nichicon's UCP series. It delivers 120 µF capacitance at a 450 V rating in a compact φ16 × 40 mm can, designed for general-purpose electronic designs that require high voltage and long-life performance.

Key value propositions include a 10,000-hour endurance at 105°C, measurable ripple current capability across low and high frequencies, and a standardized radial package with 7.5 mm lead spacing for through-hole assemblies.

Key Features

• Capacitance & Tolerance — 120 µF nominal with ±20% tolerance (measured at 120 Hz, 20°C).
• High Voltage Rating — Rated for 450 V DC to support higher-voltage designs.
• Endurance — 10,000 hours at 105°C under rated voltage and specified ripple; capacitance change within ±20% after endurance test.
• Temperature Range — Operating from −40°C to +105°C for broad environmental use.
• Ripple Current Capability — Low-frequency ripple current 820 mA (120 Hz) and high-frequency ripple current 1.23 A (10 kHz), with frequency coefficients available in the UCP series datasheet.
• Loss Tangent (tan δ) — Maximum tan δ of 0.24 (measured at 20°C, 120 Hz), enabling predictable dissipation characteristics.
• Leakage Current — Specified leakage current of 2260 µA (after 1 minute at 20°C under rated voltage) to aid in design margining.
• Package & Mechanical — Radial can (φ16 × 40 mm), lead spacing 7.5 mm with ±0.5 mm tolerance; available in bulk (no terminal forming) or bag packing.
• Polarized — Standard polarized electrolytic construction for DC applications.
• Production Status — Mass production availability from Nichicon.

Typical Applications

• General-purpose power electronics — Suitable where a compact, high-voltage electrolytic capacitor is required in through-hole assemblies.
• Industrial equipment — Applicable to designs that demand long operating life at elevated temperatures up to 105°C.
• Repair and replacement use — Standard radial package and common electrical ratings make it suitable for maintenance and retrofit tasks in existing equipment.

Unique Advantages

• High-voltage capability (450 V) — Reduces the need for series stacking in higher-voltage circuits by providing a single-capacitor solution at 450 V.
• Long endurance at elevated temperature — 10,000-hour life at 105°C supports designs with extended runtime expectations in warm environments.
• Predictable ripple performance — Defined low- and high-frequency ripple current ratings (820 mA at 120 Hz; 1.23 A at 10 kHz) simplify thermal and ripple budgeting.
• Compact radial form factor — φ16 × 40 mm can with 7.5 mm lead spacing offers a small footprint for through-hole layouts.
• Quantified electrical loss and leakage — Specified tan δ (0.24) and measured leakage current (2260 µA) provide verifiable parameters for circuit simulations and margin calculations.
• Production-ready availability — Mass production status supports volume procurement and consistent supply.

Why Choose UCP2W121MHD?

The UCP2W121MHD combines a high 450 V rating with 120 µF capacitance in a compact, radial aluminum electrolytic package engineered for general-purpose applications requiring long life and defined ripple handling. Its 10,000-hour endurance at 105°C and specified electrical characteristics (tan δ, leakage current, and frequency-dependent ripple capability) make performance predictable for design and reliability planning.

Engineers specifying Nichicon's UCP2W121MHD benefit from a documented datasheet-backed component in mass production, suitable for designs where verified high-voltage, long-life electrolytic capacitance is needed.

Request a quote or submit a parts inquiry to check current availability, lead times, and volume pricing for UCP2W121MHD.