UHD1H181MPD

The UHD1H181MPD is a radial-lead aluminum electrolytic capacitor from Nichicon’s UHD series designed for general-purpose electronics. It combines a compact φ8×20 mm can with low impedance characteristics and elevated ripple-current capability to address power smoothing and decoupling needs in space-constrained designs.

Engineered for continuous operation up to 105°C with a rated life of 3000 hours at that temperature, this part delivers measurable performance benefits where high-frequency ripple handling and reliable long-term operation are required.

Key Features

• Electrical Performance — 180 µF nominal capacitance with ±20% tolerance (measured at 120 Hz, 20°C) and a rated voltage of 50 V.
• Low Loss / Low Impedance — Dissipation factor (tanδ) of 0.10 at 20°C, 120 Hz supports efficient energy transfer and reduced heating in operation.
• High Ripple Current Capability — Low-frequency ripple current of 833 mA at 120 Hz and high-frequency ripple current of 1.19 A at 100 kHz enable effective filtering across a wide frequency range.
• Predictable Leakage — Specified leakage current of 90 µA (after 2 minutes at rated voltage and 20°C) for predictable bias behavior.
• Thermal and Mechanical — Operating temperature range from −40°C to +105°C with a rated endurance of 3000 hours at 105°C; compact φ8×20 mm can and 3.5 mm lead spacing (±0.5 mm).
• Packaging & Mounting — Radial lead configuration available in bulk (no terminal forming) or bag packing for manual or automated through-hole insertion.
• Regulatory — RoHS compliant.

Typical Applications

• Power Supply Filtering — Smoothing and decoupling of power rails where a compact, high-ripple-capable capacitor is required.
• DC–DC Converter Output — Bulk and output filtering in converter circuits that demand low impedance at high frequencies.
• Consumer and Industrial Electronics — General-purpose energy storage and ripple suppression in compact assemblies that operate across −40°C to +105°C.

Unique Advantages

• High ripple handling: Rated ripple currents (833 mA at 120 Hz and 1.19 A at 100 kHz) reduce the need for larger or multiple capacitors when filtering high-frequency noise.
• Compact footprint: φ8×20 mm can and 3.5 mm lead spacing deliver a small board area for space-constrained designs.
• Wide operating temperature: −40°C to +105°C rating supports use in both cold-start and elevated-temperature environments.
• Long endurance at temperature: 3000 hours at 105°C provides predictable lifetime performance for sustained high-temperature operation.
• Low dissipation factor: tanδ = 0.10 at 20°C, 120 Hz minimizes internal losses and heating under AC stress.
• RoHS compliant: Meets environmental regulatory requirements for lead-free assemblies.

Why Choose UHD1H181MPD?

UHD1H181MPD is positioned for engineers who need a compact, reliable radial electrolytic capacitor that balances capacitance, voltage rating, and ripple-current capability. Its low impedance characteristics and controlled dissipation factor make it suitable for general-purpose power smoothing and decoupling tasks in both consumer and industrial electronic designs.

Backed by Nichicon’s UHD series specifications—including a −40°C to +105°C operating range, 3000-hour endurance at 105°C, and measurable ripple-current performance—this capacitor delivers a predictable, space-efficient solution where elevated ripple handling and long-term thermal stability are required.

If you would like pricing, availability, or to request a quote for UHD1H181MPD, please request a quote or contact sales to discuss lead times and ordering options.