UHD1H821MHD

The UHD1H821MHD is a radial-lead aluminum electrolytic capacitor optimized for applications that require high ripple-current handling and low impedance at elevated frequencies. It provides 820 µF capacitance at a 50 V rating in a compact φ12.5 × 35.5 mm can with 5 mm lead spacing.

Designed for general-purpose electronic use, this Nichicon UHD-series unit combines a wide operating temperature range and long endurance to support reliable performance in demanding environments.

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance with a 50 V rated voltage and ±20% tolerance for bulk energy storage and decoupling needs.
• Low Loss (tan δ) — tanδ = 0.10 at 20°C, 120 Hz, delivering lower dissipation for improved AC performance at the rated voltage.
• High Ripple Current — Handles 2.22 A at 120 Hz (low frequency) and 2.96 A at 100 kHz (high frequency), enabling robust ripple filtering across a wide frequency range.
• Leakage Current — Specified leakage current of 410 µA (measured condition provided), supporting predictable quiescent behavior.
• Endurance — Rated for 5000 hours at 105°C under specified DC bias plus rated ripple current, with capacitance change within ±25% after endurance testing.
• Thermal Range — Operates from −40°C to +105°C to cover a broad set of environmental conditions.
• Radial Lead Can — φ12.5 mm can with 35.5 mm length and 5 mm lead spacing (±0.5 mm), supplied in bulk (no terminal forming) or bag packing for flexible assembly handling.
• RoHS Compliant — Manufactured in compliance with RoHS requirements.

Typical Applications

• General-purpose electronics — Provides bulk capacitance and energy buffering where a radial, axial-mounted electrolytic is specified.
• Power supply ripple filtering — High ripple-current ratings and low tanδ support ripple suppression across low and high frequencies.
• Power management modules — Compact φ12.5 × 35.5 mm can for designs requiring significant capacitance at 50 V in a radial-lead package.

Unique Advantages

• High ripple capability: Specified 2.22 A (120 Hz) and 2.96 A (100 kHz) ripple currents reduce heating and extend life in ripple-intensive circuits.
• Low dissipation (tanδ = 0.10): Lower loss at 20°C/120 Hz helps minimize AC heating and improves efficiency in AC-coupled applications.
• Long endurance at elevated temperature: 5000-hour rating at 105°C under specified conditions delivers predictable lifetime performance for continuous-duty installations.
• Wide operating temperature: −40°C to +105°C operation supports deployment across a broad environmental range.
• Compact radial form factor: φ12.5 × 35.5 mm can and standardized 5 mm lead spacing simplify PCB layout and mechanical integration.
• RoHS compliance: Meets RoHS requirements for use in regulated assemblies.

Why Choose UHD1H821MHD?

The UHD1H821MHD positions itself as a robust, general-purpose aluminum electrolytic solution where substantial capacitance, high ripple tolerance, and low impedance at higher frequencies are required. Its combination of 820 µF at 50 V, specified ripple currents, low tanδ, and a 5000-hour endurance at 105°C makes it suitable for designers prioritizing reliable AC performance and predictable lifetime in radial-lead form.

Ideal for engineers and procurement teams specifying capacitors for power filtering, decoupling, and energy buffering in a compact can package, the UHD1H821MHD offers verifiable electrical and environmental characteristics from a mass-production product line.

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