UAS2D181MHD

The UAS2D181MHD is a miniature aluminum electrolytic capacitor from Nichicon’s UAS series, configured as a radial lead can. It delivers 180 µF capacitance at a 200 V rating in a compact φ16 × 30.5 mm package with 7.5 mm lead spacing.

Designed for general-purpose electronics that require high ripple handling, wide operating temperature range, and improved safety under abnormal voltage conditions, this part targets applications where stable filtering and reliable long-term performance are needed.

Key Features

• Capacitance & Voltage 180 µF nominal capacitance with a 200 V rated voltage, tolerance ±20%/−20% for predictable energy storage in DC circuits.
• High ripple current capability Low-frequency ripple current 600 mA (120 Hz) and high-frequency ripple current 960 mA (10 kHz), enabling effective smoothing in power applications.
• Wide temperature range & endurance Operates from −40 °C to +105 °C with an endurance rating of 2000 hours at 105 °C under rated voltage and ripple conditions.
• Loss angle (tan δ) Maximum tan δ of 0.15 measured at 20 °C, 120 Hz, supporting stable dissipation characteristics.
• Leakage current Specified leakage current of 1540 µA (measured at 20 °C after 1 minute), useful for design verification and safety margining.
• Safety and abnormal-voltage tolerance UAS series construction includes improved safety features for abnormally excessive voltage and a pressure-relief vent mechanism to reduce hazardous failure modes.
• Compact radial-can package Size φ16 × 30.5 mm (L: 3.05 × D: 1.6 cm) with 7.5 mm lead spacing (±0.5 mm); available in bulk or bag packing for flexible assembly.
• RoHS compliant Conforms to RoHS requirements.

Typical Applications

• Power conversion and DC filtering Uses the 200 V rating and high ripple current capability to smooth and filter supply rails in DC power circuits.
• Industrial and control electronics Wide −40 °C to +105 °C operating range and 2000 h endurance at 105 °C suit demanding industrial environments.
• General-purpose electronic assemblies Compact φ16 × 30.5 mm radial-can package fits space-constrained boards for general-purpose smoothing and decoupling.

Unique Advantages

• High ripple handling: Rated ripple currents of 600 mA (120 Hz) and 960 mA (10 kHz) allow robust performance under dynamic load conditions.
• Wide operating temperature and proven endurance: −40 °C to +105 °C range and 2000 hours endurance at 105 °C provide design confidence for long-term deployments.
• Compact footprint: φ16 × 30.5 mm can and 7.5 mm lead spacing support compact PCB layouts while maintaining adequate capacitance and voltage rating.
• Safety-oriented design: Improved abnormal-voltage tolerance and a pressure-relief vent reduce the risk of hazardous failures in overvoltage events.
• Clear electrical characterization: Specified tan δ (0.15) and measured leakage current (1540 µA) simplify validation and reliability calculations.
• Regulatory compliance: RoHS compliant for environmentally conscious designs.

Why Choose UAS2D181MHD?

UAS2D181MHD combines a 200 V rating, substantial 180 µF capacitance, and measurable high ripple capability in a miniature radial-can package—making it suitable for engineers seeking reliable DC filtering and energy-storage components in space-constrained assemblies. The part’s wide temperature range and 2000-hour endurance at 105 °C provide a balance of performance and longevity for industrial and general-purpose designs.

As a member of Nichicon’s UAS series and available in mass production, this capacitor offers verified electrical characteristics (tan δ, leakage current, ripple ratings) and safety features that help simplify qualification and deployment in production systems.

Request a quote or submit a pricing and availability inquiry to receive lead-time and ordering details for UAS2D181MHD.