UUN1H331MNQ1MS

The UUN1H331MNQ1MS is a chip-type, bi-polarized aluminum electrolytic capacitor from Nichicon's UUN series, offering a higher capacitance option in a surface-mount radial can package. It is designed for surface mounting on high-density printed circuit boards and is compatible with automated assembly processes.

This part targets general-purpose electronic designs that require substantial capacitance in an SMD form factor, with verified performance across a wide temperature range and defined ripple-current capability.

Key Features

• Capacitance & Rated Voltage — 330 µF rated capacitance with a 50 V rating and a tolerance of ±20% (measured at 120 Hz, 20°C).
• Bi-Polar Construction — Bi-polarized design and series architecture as specified for operation across the stated temperature range.
• Wide Operating Temperature — Specified for operation from −55°C to +105°C.
• Endurance at Elevated Temperature — Endurance specified as 2000 hours at 105°C (endurance test includes polarity inversion every 250 hours as per series specification).
• Ripple Current Ratings — Defined ripple performance: 540 mA at 120 Hz and 810 mA at 10 kHz for this part.
• Surface-Mount Chip Package — Chip-type radial can SMD package sized L: 2.15 × D: 1.8 cm with recommended surface-mount land size L: 1.83 × W: 1.83 cm; designed for placement on high-density PCBs and for carrier-tape automated mounting.
• Regulatory Compliance — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General Purpose Electronic Circuits — Suited for a wide range of general-purpose designs that require higher capacitance in a surface-mount chip package.
• High-Density Surface-Mount PCBs — Designed for surface mounting on high-density boards and compatible with automatic mounting via carrier tape.
• Wide-Temperature Environments — Applicable in systems that must operate reliably from −55°C to +105°C.

Unique Advantages

• High Capacitance in an SMD Chip — 330 µF in a chip-type radial can SMD package provides higher capacitance without large through-hole components.
• Bi-Polar Design with Endurance Validation — Bi-polarized series with endurance characterized at 2000 hours at 105°C, including specified polarity inversion during testing.
• Defined Ripple Handling — Published ripple current ratings (540 mA at 120 Hz; 810 mA at 10 kHz) help designers evaluate AC stress capacity for power-related circuitry.
• Assembly-Ready Packaging — Designed for automatic mounting machine use with carrier tape, easing integration into automated manufacturing flows.
• Wide Temperature Range — Rated for −55°C to +105°C to support designs exposed to broad environmental conditions.
• RoHS Compliant — Meets the RoHS directive requirements listed in the product data.

Why Choose UUN1H331MNQ1MS?

The UUN1H331MNQ1MS combines elevated capacitance with a compact chip-style radial can SMD package, making it a practical choice for general-purpose and high-density surface-mount designs that require reliable performance across a wide temperature window. Its bi-polarized construction and endurance characterization at 105°C provide verifiable performance data for designs where polarity conditions and elevated-temperature operation are factors.

Engineers specifying this Nichicon part benefit from clearly defined electrical and mechanical parameters—capacitance, rated voltage, ripple current, package land sizing, and RoHS compliance—allowing straightforward evaluation and integration into production assemblies.

Request a quote or submit an inquiry to receive pricing and availability information for the UUN1H331MNQ1MS and to discuss how it can fit into your next design.