UCA2W330MHD

The UCA2W330MHD is a miniature aluminum electrolytic capacitor in a radial‑lead can configuration, providing 33 µF nominal capacitance at a 450 V rating. It is designed for general-purpose high‑voltage applications such as power supplies and ballast circuits where long endurance and elevated ripple performance are required.

This part delivers long life at elevated temperature, defined leakage and loss characteristics, and compact dimensions (φ16 × 30.5 mm) for through‑hole assemblies. Packaging is available in bulk or bag formats. Status: End Of Life (not recommended for new designs).

Key Features

• Capacitance & Voltage — 33 µF nominal capacitance with a rated voltage of 450 V and capacitance tolerance of -20% to +20% (±20%).
• High temperature endurance — Rated life of 12,000 hours at +105°C under DC bias plus rated ripple current.
• Ripple current capability — Low frequency ripple current 350 mA at 120 Hz and high frequency ripple current 700 mA at 100 kHz.
• Loss & leakage — Tangent of loss angle (tan δ) 0.20 measured at 20°C, 120 Hz; measured leakage current 694 µA.
• Package & mounting — Radial lead, polarized aluminum can with case size φ16 × 30.5 mm and lead spacing 7.5 mm (±0.5 mm).
• Temperature range — Operating from -25°C to +105°C.
• Compliance & packaging — RoHS compliant; available in Bulk (no terminal forming) or Bag packing.
• Product status — End Of Life; products in this series are scheduled for discontinuation and are not recommended for new designs.

Typical Applications

• Power supplies — High‑voltage filtering and energy storage in through‑hole power supply designs where 450 V rating and long endurance are required.
• Ballast circuits — Suited for ballast applications that demand elevated ripple handling and stable performance at +105°C.
• General-purpose high-voltage filtering — Use in legacy or maintenance designs requiring a compact radial aluminum electrolytic with specified leakage and tan δ characteristics.

Unique Advantages

• 450 V rating — Allows direct use in higher DC bus and high‑voltage filter rails without series stacking.
• Long rated life at elevated temperature — 12,000 hours at 105°C supports extended service intervals in high‑temperature environments.
• High ripple handling — Specified ripple currents at both low and high frequencies (350 mA @120 Hz, 700 mA @100 kHz) for stable performance across frequency ranges.
• Compact through‑hole form factor — φ16 × 30.5 mm radial can offers a small footprint for space‑constrained PCBs while retaining robust capacitance and voltage capability.
• Clearly defined electrical characteristics — Published tan δ, leakage current, and tolerance values enable predictable performance and easier design margin decisions.
• RoHS compliant — Meets RoHS requirements for restricted substances in many industrial and commercial applications.

Why Choose UCA2W330MHD?

UCA2W330MHD provides a practical combination of high voltage capability, long high‑temperature endurance, and measurable ripple performance in a compact radial can. Its clearly specified electrical parameters (tan δ, leakage current, ripple ratings) simplify verification and integration into existing through‑hole power and ballast circuits.

Because this part is End Of Life and not recommended for new designs, it is particularly relevant for maintenance, repair, and replacement in legacy systems where matching original specifications is important. The product’s packaging options and RoHS compliance further support procurement and assembly needs for such use cases.

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