ULD2W330MHD6

The ULD2W330MHD6 is a polarized aluminum electrolytic capacitor in a radial can package, offering 33 µF capacitance at a 450 V rated voltage. It is part of Nichicon’s ULD series—miniature-sized, long-life components designed for reliable DC filtering and energy-storage in high-voltage applications.

Designed for general-purpose power electronics and specified for power-supply use in LED lighting, this part combines a 20000-hour endurance at 105°C with RoHS compliance, making it suitable for designs that require extended operational life and regulatory conformity.

Key Features

• Capacitance & Voltage — 33 µF nominal capacitance with a 450 V rated voltage for high-voltage DC filtering and energy buffering.
• Long Life Endurance — Rated for 20000 hours at +105°C under D.C. bias plus rated ripple current, supporting long-term operation in elevated-temperature environments.
• Temperature Range — Operational from −40°C to +105°C to accommodate a wide range of ambient conditions.
• Loss and Leakage Characteristics — Tangent of loss angle (tan δ) 0.24 at 20°C, 120 Hz, and specified leakage current of 694 µA, enabling predictable dissipation and low steady-state losses.
• Ripple Current Handling — Low-frequency ripple current 312 mA at 120 Hz and high-frequency ripple current 561.6 mA at 100 kHz for bulk and high-frequency decoupling duties.
• Radial Can Package — φ18 × 20 mm can with radial lead spacing of 7.5 mm (±0.5 mm), supplied in bulk or bag packing for manual or automated assembly flows.
• Regulatory Compliance — RoHS-compliant construction, suitable where restricted substance compliance is required.

Typical Applications

• LED Lighting Power Supplies — Bulk and smoothing capacitance for LED driver supplies, benefiting from long life at elevated temperature.
• High-Voltage DC Filtering — Energy storage and decoupling in circuits requiring 450 V rated components for reliable voltage stabilization.
• General-Purpose Power Supplies — Filtering and ripple suppression in a wide range of power-supply topologies where long endurance and predictable leakage matter.

Unique Advantages

• Extended Operational Lifetime: 20000 hours at 105°C provides predictable long-term performance for deployments with elevated operating temperatures.
• High Voltage Capability: 450 V rating supports high-voltage DC applications without the need for series stacking of lower-voltage parts.
• Compact Radial Form Factor: φ18 × 20 mm can with radial leads and 7.5 mm lead spacing enables space-efficient placement in through-hole designs.
• Measured Loss and Leakage Data: Specified tan δ (0.24 at 120 Hz, 20°C) and defined leakage current values help designers size dissipation and standby current budgets.
• Frequency-Range Ripple Performance: Separate ripple current ratings at 120 Hz and 100 kHz support both low-frequency smoothing and higher-frequency decoupling use cases.
• RoHS Compliant Packaging: Available in bulk/no terminal forming or bag packing to match production and prototyping workflows while meeting restricted substance requirements.

Why Choose ULD2W330MHD6?

ULD2W330MHD6 is positioned for designs that require robust, long-life aluminum electrolytic capacitance at high voltage. Its 33 µF/450 V specification, combined with a 20000-hour endurance at 105°C and defined ripple and leakage characteristics, makes it appropriate for power-supply filtering and energy storage in LED drivers and other high-voltage DC circuits.

The product suits engineers seeking predictable lifetime behavior, compact radial mounting, and RoHS compliance for sustained production and regulatory alignment. Its measured electrical characteristics simplify system-level budgeting for loss, leakage, and ripple handling.

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