UCA2W470MHD

The UCA2W470MHD is a miniature, radial-lead aluminum electrolytic capacitor designed for high-voltage, high-ripple applications. It provides 47 µF capacitance at a rated voltage of 450 V with a long rated life and compact radial-can package.

Engineered for power supply and ballast applications, this polarized capacitor delivers high ripple current capability, extended endurance at elevated temperature, and RoHS compliance for industrial and general-purpose electronic designs.

Key Features

• Voltage & Capacitance — 47 µF nominal capacitance with a rated voltage of 450 V and capacitance tolerance of ±20%.
• High Ripple Handling — Rated ripple current up to 900 mA (105°C / 100 kHz) and 450 mA at 120 Hz to support high–ripple power circuits.
• Long Operating Life — Load-life endurance specified at 12,000 hours at 105°C, suitable for sustained high-temperature operation.
• Temperature Range — Operating from −25°C to +105°C for robust performance across common industrial environments.
• Loss and Leakage Characteristics — Tangent of loss angle (tan δ) up to 0.20 (120 Hz, 20°C) at 450 V and a specified leakage current of 946 µA.
• Compact Radial Can — Case size φ18 × 30.5 mm (L: 3.05 × D: 1.8 cm) with 7.5 mm lead spacing in a radial, can-style package for through-hole mounting.
• Packaging & Terminals — Supplied in bulk with no terminal forming; radial lead mounting for straightforward PCB assembly.
• Environmental Compliance — Compliant with the RoHS directive.

Typical Applications

• Power Supplies — Bulk and smoothing capacitor in high-voltage power supply stages where 450 V rating and high ripple current are required.
• Ballasts — Energy storage and ripple management in ballast circuits, leveraging the high-voltage rating and long-life specification.
• General-Purpose High‑Voltage Filtering — Through-hole radial solution for high-voltage filtering and decoupling in industrial and general-purpose electronics.

Unique Advantages

• High ripple-current capability: 900 mA at 105°C/100 kHz (and 450 mA at 120 Hz) enables dependable ripple handling in demanding power circuits.
• Extended rated life: 12,000 hours at 105°C supports longer maintenance intervals and improved product uptime.
• Compact high-voltage package: φ18 × 30.5 mm radial can provides a small footprint for a 450 V capacitor, simplifying board layout in through-hole designs.
• Clear electrical parameters: Specified tan δ (0.20) and measured leakage current (946 µA) allow precise thermal and leakage budgeting in designs.
• RoHS compliant: Meets RoHS directive requirements for environmental and regulatory conformity.

Why Choose UCA2W470MHD?

UCA2W470MHD combines a high 450 V rating, substantial ripple current capability, and a long 12,000-hour endurance at 105°C in a compact radial-can package. It is well suited for designers who need a through-hole, high-voltage electrolytic capacitor for power supplies, ballast circuits, and general-purpose high-voltage filtering where predictable ripple and lifetime behavior matter.

Please note this product is scheduled to be discontinued and is not recommended for new designs; it remains an option for maintenance, replacement, or legacy-support inventory where its specific combination of voltage, capacitance, and package are required.

For availability, lead times, and a formal quote, request a quote or contact our sales team to discuss pricing and current stock.