UUJ1H331MNQ1MS

The UUJ1H331MNQ1MS is a Nichicon UUJ-series aluminum electrolytic chip capacitor designed to deliver high capacitance in a surface-mount can package. It provides 330 µF at 50 V in a compact φ16 × 16.5 mm case intended for automated, high-density PCB assembly.

Engineered for demanding environments, this capacitor is AEC-Q200 qualified, RoHS compliant, and rated for operation from −55 °C to 105 °C with a 5,000‑hour endurance at 105 °C, making it suitable for automotive and other high-reliability applications.

Key Features

• Capacitance and Voltage — 330 µF nominal capacitance with a 50 V rated voltage and ±20% tolerance, providing substantial bulk energy storage for filtering and decoupling.
• Package & Mounting — Chip-type, radial can SMD in φ16×16.5 mm case (L: 1.65 × D: 1.6 cm) designed for surface mounting on high-density PCBs and compatible with carrier-tape feeding for automatic placement.
• Temperature & Endurance — Operating range −55 °C to 105 °C and endurance of 5,000 hours at 105 °C with specified limits on capacitance change, tan δ, and leakage current after test.
• Ripple Current Performance — Rated ripple current of 440 mA at 120 Hz and 660 mA at 10 kHz for handling AC stress across frequency ranges.
• Polarized Electrolytic Chemistry — Polarized aluminum electrolytic construction suited for bulk energy storage and smoothing applications.
• Compliance & Qualification — RoHS directive compliant and AEC‑Q200 qualified for applications requiring automotive-grade component qualification.
• PCB Land Footprint — Recommended surface-mount land size L: 1.63 × W: 1.63 cm to match the chip-type can package for reliable soldering and assembly.

Typical Applications

• Automotive Electronics — Bulk filtering and decoupling in control modules and power electronics where AEC‑Q200 qualification and high-temperature endurance matter.
• Power Supply Smoothing — Bulk energy storage and ripple reduction for DC/DC converters and power rails on high-density PCBs.
• Industrial Electronics — Energy buffering and filtering in boards exposed to wide temperature ranges and continuous operation.

Unique Advantages

• High Bulk Capacitance in SMD Form — 330 µF in a chip-type can enables substantial energy storage without requiring through-hole parts.
• Automated Assembly Ready — Designed for carrier-tape feeding and surface-mount placement to streamline assembly on automated lines.
• Automotive-Grade Reliability — AEC‑Q200 qualification provides a verified level of robustness for automotive and similarly demanding applications.
• Extended High‑Temperature Endurance — 5,000 hours at 105 °C supports long-term use under elevated temperature stress.
• Frequency-Resilient Ripple Handling — Specified ripple current at both 120 Hz and 10 kHz supports performance across typical power and switching frequencies.
• Regulatory Compliance — RoHS compliance simplifies use in designs that must meet environmental substance restrictions.

Why Choose UUJ1H331MNQ1MS?

The UUJ1H331MNQ1MS positions itself as a reliable surface-mount solution when designers need high bulk capacitance, automotive-grade qualification, and long-term high-temperature endurance in a compact chip can. Its combination of 330 µF at 50 V, AEC‑Q200 qualification, and a −55 °C to 105 °C operating range makes it well suited for power management and filtering tasks in automotive and industrial designs.

For engineering teams targeting robust, production-ready assemblies, this Nichicon UUJ part offers a balance of electrical performance, assembly compatibility, and qualification that supports long-term reliability and streamlined manufacturing.

Request a quote or contact sales to discuss volume pricing, lead time, or to obtain additional technical support for integrating UUJ1H331MNQ1MS into your design.