UHW1J181MPD

The UHW1J181MPD from Nichicon is a miniature, high-reliability aluminum electrolytic capacitor in a radial-lead can. It combines a 180 µF capacitance with a 63 V rating and is designed for general-purpose electronic circuits that require compact, high-ripple-capability capacitors.

Key value propositions include low impedance at higher frequencies, rated ripple-current capability across low and high frequency bands, and a long endurance rating for sustained operation at elevated temperatures.

Key Features

• Capacitance and Voltage — 180 µF nominal capacitance with a rated voltage of 63 V and tolerance of −20% to +20%.
• Low-loss Performance — Tangent of loss angle (tan δ) of 0.09 measured at 20°C, 120 Hz, supporting reliable AC performance.
• High Ripple Current Handling — Low-frequency ripple current of 480 mA at 120 Hz and high-frequency ripple current of 1.2 A at 10 kHz, enabling effective smoothing under varying ripple conditions.
• Low Impedance — DC impedance of 470 mΩ, providing lower voltage drop and improved filtering performance in compact circuits.
• Long Endurance — Rated life of 12,000 hours at 105°C, suitable for applications requiring extended operation at elevated temperatures.
• Compact Radial Package — Miniature radial-lead can with dimensions φ10 × 16 mm (D: 1.0 cm × L: 1.6 cm) and 5 mm lead spacing (±0.5 mm), supplied in bulk or bag packing.
• Leakage and Polarization — Polarized electrolytic construction with a measured leakage current of 113.4 µA.
• Environmental Compliance — RoHS compliant.

Typical Applications

• General-purpose electronic circuits — Serves as a compact electrolytic solution for circuits that require capacitance with reliable ripple-current handling.
• Power filtering and decoupling — Low impedance and specified ripple-current ratings support smoothing and decoupling in space-constrained designs.
• High-frequency ripple conditions — Demonstrated ripple capability at 10 kHz (1.2 A) makes it suitable where higher-frequency ripple attenuation is required.

Unique Advantages

• Miniature footprint with substantial capacitance — φ10 × 16 mm can delivers 180 µF in a small radial package for compact board layouts.
• Broad ripple-current capability — Defined ripple-current ratings at both 120 Hz and 10 kHz allow predictable thermal and performance behavior across frequencies.
• Low-loss dielectric behavior — Low tan δ (0.09 at 20°C, 120 Hz) contributes to efficient AC performance and reduced heating under ripple load.
• Long operational life at elevated temperature — 12,000 hours at 105°C supports applications requiring extended high-temperature endurance.
• Standard radial-lead format — Easy through-hole mounting with 5 mm lead spacing and bulk/bag packaging options for flexible assembly processes.
• Regulatory compliance — RoHS-compliant construction for environmentally conscious designs.

Why Choose UHW1J181MPD?

The UHW1J181MPD positions itself as a compact, reliable electrolytic capacitor for designers needing measurable ripple-current performance, low impedance, and long-term endurance in a radial-lead package. Its combination of 180 µF at 63 V, defined ripple ratings at both low and high frequencies, and a 12,000-hour life at 105°C offer predictable behavior for sustained operation.

This part is well suited for engineers and procurement teams specifying general-purpose capacitors where board space is limited but dependable ripple and lifetime characteristics are required. RoHS compliance and standard packaging options support integration into established manufacturing flows.

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