UHW2A821MHD

The UHW2A821MHD is a radial-lead aluminum electrolytic capacitor with 820 µF rated capacitance and 100 V rated voltage. It is part of Nichicon’s UHW series, which emphasizes miniature sizing, high ripple current capability and high reliability.

Designed for general-purpose electronic applications, this polarized capacitor delivers low impedance (81 mΩ), specified ripple current performance at both low and high frequencies, and long-term endurance up to 12,000 hours at 105°C.

Key Features

• Electrical Performance 820 µF capacitance with ±20% tolerance and a rated voltage of 100 V; impedance is specified at 81 mΩ and tanδ is 0.08 (20°C, 120 Hz).
• High Ripple Current Handling Low-frequency ripple current of 2.106 A (120 Hz) and high-frequency ripple current of 3.51 A (10 kHz) support demanding AC ripple environments.
• Reliability & Endurance Endurance specified at 12,000 hours when operated at 105°C; leakage current is 820 µA after rated voltage application.
• Operating Range Rated for −40°C to +105°C operating temperature range to accommodate a broad set of environmental conditions.
• Package & Mounting Radial lead, can-style package with nominal dimensions φ16 × 40 mm and 7.5 mm lead spacing (±0.5 mm); offered in bulk (no terminal forming) or bag packing.
• RoHS Compliant Conforms to RoHS directives as indicated for the UHW series.

Typical Applications

• General-purpose power filtering — Used where a polarized aluminum electrolytic with 820 µF at 100 V is required to smooth and filter DC supplies.
• High-ripple power stages — Suitable for power stages that require elevated ripple current capability at both low and high frequencies, leveraging the UHW series’ high ripple performance.
• Industrial and commercial electronics — Applicable in designs that demand long endurance at elevated temperature (12,000 hours at 105°C) and robust leakage and impedance characteristics.

Unique Advantages

• High ripple-current capability: 2.106 A (120 Hz) and 3.51 A (10 kHz) ratings reduce heating and extend service life in ripple-intensive circuits.
• Low impedance: 81 mΩ impedance supports stable filtering and decoupling performance across frequency.
• Extended high-temperature life: 12,000-hour endurance at 105°C supports longer maintenance intervals and predictable aging.
• Compact radial package: φ16 × 40 mm can with 7.5 mm lead spacing provides a space-efficient, through-hole solution for power and general-purpose boards.
• Verified leakage and loss characteristics: Leakage current of 820 µA and tanδ of 0.08 (20°C, 120 Hz) enable predictable behavior in precision and power applications.
• RoHS compliance: Meets environmental requirements for lead-free assemblies.

Why Choose UHW2A821MHD?

The UHW2A821MHD combines high capacitance and 100 V rating with low impedance and defined ripple-current capability to address demanding general-purpose power-conditioning needs. Its long endurance at elevated temperature and controlled leakage and dissipation factor make it suitable for engineers seeking predictable, reliable performance in radial-lead through-hole designs.

This capacitor is well suited to designers specifying robust, space-efficient electrolytic solutions for power filtering, decoupling and ripple-heavy circuits where lifecycle and thermal endurance are important considerations.

Request a quote or submit a parts inquiry to obtain pricing, availability and packaging options for UHW2A821MHD. Our team can provide lead-time information and support for volume requirements.