UHW2A8R2MDD

The UHW2A8R2MDD is a radial‑lead aluminum electrolytic capacitor in Nichicon’s UHW series, delivering 8.2 µF at 100 V in a compact φ5 × 11 mm can. Designed as a miniature, high‑reliability device, it offers low impedance at high frequency and elevated ripple handling for space‑constrained power designs.

Engineered for general‑purpose applications, this unit combines a small package and robust endurance to address high‑voltage filtering and decoupling tasks where a compact, polarized electrolytic solution is required.

Key Features

• Capacitance & Voltage: 8.2 µF rated capacitance with a 100 V rated voltage and ±20% tolerance, suitable for higher‑voltage circuits requiring compact energy storage.
• High Ripple Capability: Low‑frequency ripple current of 124 mA at 120 Hz and high‑frequency ripple current of 310 mA at 10 kHz, enabling improved handling of AC ripple in power rails.
• Low Impedance at High Frequency: Series design emphasis on reduced impedance in the high‑frequency range supports effective decoupling and noise suppression.
• Reliability & Endurance: Rated life of 8000 hours at 105°C under DC bias plus rated ripple current, providing predictable lifetime performance for sustained thermal stress.
• Loss & Leakage Characteristics: tanδ of 0.08 (measured at 20°C, 120 Hz) and a leakage current of 8.2 µA, reflecting stable dielectric performance at the rated voltage.
• Compact Radial Package: φ5 × 11 mm aluminum can with radial leads, 2.0 mm lead spacing (±0.5 mm), available in bulk/no terminal forming or bag packing for flexible assembly choices.
• Wide Operating Temperature: −40°C to 105°C operating range for use across a broad set of environmental conditions.

Typical Applications

• Power supply filtering: Compact smoothing and decoupling in higher‑voltage DC power supplies up to 100 V where board space is limited.
• DC rail decoupling: Local energy storage on power rails to stabilize voltage during transient loads, leveraging the capacitor’s high ripple current capacity.
• Compact industrial electronics: Space‑constrained equipment requiring reliable high‑voltage capacitors with extended endurance at elevated temperatures.

Unique Advantages

• Small footprint for high voltage: Delivers 8.2 µF at 100 V in a φ5 × 11 mm can, enabling higher‑voltage designs in tight spaces.
• Improved ripple handling: Specified ripple currents at both low and high frequencies support effective suppression of AC components on DC rails.
• Documented endurance: 8000 hours at 105°C under rated conditions provides clear lifetime expectations for thermal‑stress applications.
• Stable electrical losses: Low tanδ (0.08 at 120 Hz, 20°C) indicates limited dielectric loss for more efficient operation at rated conditions.
• Practical mounting options: Radial lead format with defined lead spacing and bulk or bag packing simplifies manual or automated assembly choices.
• RoHS compliant: Manufactured in compliance with the RoHS directive, supporting regulatory requirements for many markets.

Why Choose UHW2A8R2MDD?

The UHW2A8R2MDD pairs a small mechanical footprint with a 100 V rating and high ripple capability, making it well suited for engineers designing compact power electronics that require reliable high‑voltage filtering and decoupling. Its documented endurance and stable electrical characteristics provide predictable long‑term behavior under elevated temperature and ripple stress.

This part is a practical choice for designs that need a polarized aluminum electrolytic with clear performance data for capacitance, loss tangent, leakage, ripple current, and temperature endurance—especially where board space and high‑voltage handling are key constraints.

Request a quote or contact sales to discuss availability, pricing, and packaging options for the UHW2A8R2MDD and to ensure it meets your project's requirements.