UCS2W470MHD

The UCS2W470MHD is a miniature, high‑reliability aluminum electrolytic capacitor from Nichicon's UCS series. It is a radial‑lead, polarized capacitor rated at 47 µF and 450 V, designed for applications that require high ripple handling and extended life in a compact can package.

Targeted uses include power supply and ballast applications where long endurance, high voltage capability, and compact sizing are required. The part delivers high ripple current performance and a rated endurance of 10000 hours at 105°C.

Key Features

• Capacitance & tolerance — 47 µF with a tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• High voltage rating — Rated voltage 450 V for high‑voltage rail applications.
• High ripple current capability — Low‑frequency ripple current 600 mA at 120 Hz and high‑frequency ripple current 1.2 A at 100 kHz, supporting demanding power filtering tasks.
• Long endurance — 10000 hours rated life at 105°C under specified conditions, suitable for sustained high‑temperature operation.
• Wide operating temperature — −40°C to +105°C operating range for broad environmental tolerance.
• Low loss characteristic — tan δ 0.24 (measured at 20°C, 120 Hz) for predictable impedance behavior.
• Leakage current — Specified leakage current 946 µA (measured after 1 minute at 20°C), enabling conservative design of bias and safety margins.
• Compact radial can — Case size φ18 × 25 mm with 7.5 mm lead spacing (±0.5 mm) in a radial‑lead package for through‑hole mounting.
• Packaging and production — Available in bulk or bag packing (no terminal forming) and currently in mass production.
• RoHS compliant — Conforms to applicable RoHS requirements.

Typical Applications

• Power supply filtering — Bulk and smoothing capacitor for high‑voltage DC rails, benefiting from 450 V rating and high ripple current capability.
• Ballasts and lighting — Suited for ballast circuits where long life at elevated temperatures and stable capacitance are required.
• Industrial power electronics — Use in compact power modules and converters that demand high ripple tolerance and extended endurance.

Unique Advantages

• High‑voltage capability: 450 V rating enables direct use on higher DC rails without series arrangements.
• Designed for high ripple: Specified ripple currents at both low and high frequencies (600 mA at 120 Hz, 1.2 A at 100 kHz) reduce stress on upstream components and improve thermal handling.
• Extended high‑temperature life: 10000‑hour endurance at 105°C supports long service intervals in demanding environments.
• Compact through‑hole form factor: φ18×25 mm radial can with 7.5 mm lead spacing delivers a space‑efficient solution for PCB power sections.
• Predictable electrical behavior: Specified tan δ and leakage current figures allow accurate modeling of loss and standby power draw in designs.
• Production readiness: Mass production status and standard packaging options simplify procurement and assembly planning.

Why Choose UCS2W470MHD?

The UCS2W470MHD combines high voltage capability, high ripple current handling, and a long rated life in a compact radial can, making it well suited for power supplies, ballasts, and industrial power electronics where reliability and predictable performance matter. Its specification set—47 µF at 450 V, 10000 hours at 105°C, and defined leakage/tan δ—supports robust system design and lifetime planning.

Manufactured by Nichicon and available in mass production with RoHS compliance, the UCS2W470MHD is a practical choice for engineers seeking a proven, compact electrolytic solution for high‑voltage, high‑stress power applications.

Request a quote or contact sales to discuss availability, pricing, and how UCS2W470MHD can meet your high‑voltage power design requirements.