ULD2W220MHD

The ULD2W220MHD is an aluminum electrolytic capacitor in a miniature radial-can package designed for long-life applications. It provides a 22 µF capacitance at a 450 V rating and is suited for power-supply use, including LED lighting power supplies.

Key attributes include extended load-life endurance at elevated temperature and RoHS compliance, making it appropriate for compact, high-voltage, general-purpose power designs that demand durability over time.

Key Features

• Capacitance & Voltage — 22 µF nominal capacitance with a 450 V rated voltage to support high-voltage power circuits.
• Long-Life Endurance — Rated load life of 20000 hours at +105 °C, providing extended operational longevity under high-temperature stress.
• Temperature Range — Operating temperature from −40 °C to +105 °C to cover a wide range of environmental conditions.
• Ripple Current Performance — Specified ripple current of 240 mA at 120 Hz and 432 mA at 100 kHz for handling AC ripple in power-supply applications.
• Miniature Radial Package — Radial lead, can-style package with 5 mm lead spacing and compact dimensions (L: 2.5 cm × D: 1.25 cm) for space-constrained PCB layouts.
• Polarized Electrolytic — Polarized construction with capacitance tolerance of −20% to +20% for predictable filtering and energy-storage behavior.
• Regulatory Compliance — Compliant with RoHS directives (2011/65/EU, (EU)2015/863), meeting lead-free material requirements.

Typical Applications

• LED Lighting Power Supplies — Provides smoothing and energy buffering in LED driver power stages where long-term thermal endurance is required.
• General-Purpose Power Circuits — Acts as a high-voltage filter or reservoir capacitor in compact power-supply designs and general-purpose electronics.
• Compact PCB Designs — Miniature radial-can footprint and 5 mm lead spacing allow use in space-conscious assemblies requiring high-voltage capacitance.

Unique Advantages

• Extended High-Temperature Life: 20000‑hour load-life rating at +105 °C supports long-term reliability in thermally demanding applications.
• High Voltage Capability: 450 V rating enables use in higher-voltage power stages without requiring larger form factors.
• Compact Form Factor: Small can dimensions and radial lead package simplify integration into size-constrained PCBs.
• Measurable Ripple Handling: Documented ripple current values at 120 Hz and 100 kHz provide designers with clear guidelines for thermal and ripple management.
• Regulatory Compliance: RoHS compliance supports product designs targeting restricted-substance requirements.
• Reliable Polarized Performance: Polarized construction with specified tolerance ensures predictable electrical behavior in DC power applications.

Why Choose ULD2W220MHD?

ULD2W220MHD combines a compact radial-can package with high-voltage capability and an extended 20000‑hour life at +105 °C, making it well suited for designers who need durable, long-lived capacitance in constrained spaces. Its specified ripple current ratings and wide operating temperature range support reliable performance in power-supply roles, notably LED lighting drivers and other general-purpose high-voltage circuits.

Manufactured by Nichicon and compliant with RoHS, this component is positioned for engineering teams seeking a balance of longevity, predictable ripple handling, and a small footprint for high-voltage, general-purpose applications.

Request a quote or submit a product inquiry to receive pricing and availability information for ULD2W220MHD.