UCP2G221MHD

The UCP2G221MHD from Nichicon is a miniature, high-reliability aluminum electrolytic capacitor in the UCP series, configured in a radial-lead can. It provides 220 µF capacitance at a 400 V rated voltage with polarized construction and is designed for general-purpose power electronics applications that require long-term stability under elevated temperature and DC bias.

Key value propositions include a long endurance rating of 10,000 hours at 105°C, robust ripple-current capability across low and high frequencies, and compact φ18 × 46 mm packaging with 7.5 mm lead spacing for through-hole assemblies.

Key Features

• High Voltage & Capacitance — 220 µF capacitance rated at 400 V for applications needing significant energy storage and high-voltage filtering.
• Long Endurance — Rated for 10,000 hours at 105°C under DC bias plus rated ripple current; capacitance change is specified within ±20% after endurance testing.
• Ripple Current Performance — Low-frequency ripple current 1.2 A (120 Hz) and high-frequency ripple current 1.8 A (10 kHz), enabling effective smoothing of both mains-frequency and higher-frequency switching components.
• Operating Temperature Range — Specified for −40°C to +105°C, supporting wide ambient conditions for industrial and commercial designs.
• Control of Losses and Leakage — tanδ (DF) of 0.24 measured at 20°C, 120 Hz, and a measured leakage current of 3620 µA, enabling predictable dissipation and leakage behavior at rated conditions.
• Compact Radial Package — φ18 × 46 mm aluminium can with radial leads and 7.5 mm lead spacing (±0.5 mm), suitable for through-hole PCB layouts and bulk/bag packing options.

Typical Applications

• General-purpose power electronics — Energy storage and smoothing in 400 V-class power supplies and DC bus circuits where long life and stable performance are required.
• High-voltage filtering — Bulk filtering and decoupling at elevated voltages, leveraging the 400 V rating and high ripple-current capability.
• Industrial equipment — Power-conditioning components in industrial controls and modules that operate across −40°C to +105°C and demand extended endurance.

Unique Advantages

• High-voltage capability: 400 V rating provides margin for 400 V-class systems and designs that require elevated DC tolerance.
• Designed for long service life: 10,000-hour endurance at 105°C supports long-term reliability in demanding thermal environments.
• Broad ripple handling: Rated ripple currents for both low (1.2 A at 120 Hz) and high (1.8 A at 10 kHz) frequencies reduce the need for additional parallel components.
• Tight, documented electrical characteristics: Specified tanδ and leakage figures (0.24 and 3620 µA respectively) enable predictable thermal and leakage budgets in system design.
• Compact, through-hole form factor: φ18×46 mm radial can and 7.5 mm lead spacing simplify PCB layout for replacement or retrofit in existing through-hole assemblies.

Why Choose UCP2G221MHD?

UCP2G221MHD positions itself as a high-voltage, long-life aluminum electrolytic solution for engineers building 400 V-class power systems that require dependable energy storage and filtering. Its combination of rated capacitance, endurance at 105°C, and documented ripple-current capability makes it suitable for designs where predictable performance over thousands of hours is important.

This part is appropriate for procurement into industrial and general-purpose power designs that prioritize longevity, defined loss/ leakage characteristics, and a compact radial through-hole footprint. Backed by Nichicon's UCP series specifications, it offers clear, verifiable operating parameters for system-level thermal and electrical planning.

Request a quote or contact sales to discuss availability, pricing, and volume options for UCP2G221MHD.