UUN1C471MNJ1MS

The UUN1C471MNJ1MS is a 470 µF, 16 V aluminum electrolytic chip capacitor from Nichicon’s UUN series. It delivers higher capacitance in a surface-mount radial-can package designed for high-density PC boards and automated assembly.

As a bi-polarized capacitor rated for operation from −55°C to +105°C with RoHS compliance, it is intended for general-purpose power filtering and decoupling where polarity reversal, compact SMD packaging, and elevated temperature endurance are required.

Key Features

• Electrical Rating: 470 µF nominal capacitance at 16 V rated voltage with ±20% tolerance, providing substantial bulk capacitance in an SMD form factor.
• Bi-polarized Construction: Designed as a bi-polarized capacitor suitable for applications where polarity can reverse; endurance testing includes polarity inversion every 250 hours.
• Wide Temperature Range: Specified to operate from −55°C to +105°C for use across demanding ambient conditions.
• High-Temperature Endurance: Endurance specified as 2000 hours at 105°C with the rated voltage applied (polarity inverted every 250 hours); after recovery to 20°C, capacitance change stays within ±20% and leakage and tan δ meet defined limits.
• Ripple Current Performance: Rated ripple current of 420 mA at 120 Hz and 630 mA at 10 kHz, with published frequency coefficients for ripple current across common bands.
• Leakage and Loss Characteristics: Leakage current specified as not more than 0.03CV (µA) after one minute at 20°C; tangent of loss angle (tan δ) max for 16 V is 0.18 at 120 Hz, 20°C.
• Surface-Mount, Tape-Feed Compatible: Chip-type radial-can SMD intended for automatic mounting machines fed with carrier tape; recommended PCB land size L: 1.63 × W: 1.63 cm.
• Compact Dimensions: Component size L: 1.65 × D: 1.6 cm to fit higher-density board layouts.
• Regulatory Compliance: Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power filtering: Bulk decoupling and smoothing on high-density PCBs where higher capacitance is needed in an SMD package.
• Circuits with polarity reversal: AC coupling and signal circuits or power stages that experience polarity changes, leveraging the bi-polarized construction.
• Industrial and consumer electronics: Power supply smoothing and energy buffering in equipment operating across a wide ambient temperature range.

Unique Advantages

• Higher capacitance in an SMD form: 470 µF in a chip-type radial-can package enables board-level bulk capacitance without through-hole components.
• Design flexibility with bi-polarized operation: Eliminates the need to orient polarity in circuits that may see reverse voltages or AC conditions.
• Proven high-temperature endurance: 2000-hour specification at 105°C with defined recovery limits supports long-term reliability in hot operating environments.
• Measurable ripple and loss specs: Published ripple current ratings (420 mA at 120 Hz; 630 mA at 10 kHz) and tan δ allow predictable thermal and AC performance planning.
• Assembly-ready packaging: Carrier-tape compatibility simplifies automated pick-and-place integration on high-density PCBs.
• RoHS compliance: Meets current RoHS directive requirements for material compliance.

Why Choose UUN1C471MNJ1MS?

The UUN1C471MNJ1MS positions itself as a compact, high-capacitance aluminum electrolytic solution for designs that require SMD bulk storage, stable performance over −55°C to +105°C, and capability for polarity reversal. Its defined ripple current, leakage, and tan δ specifications allow engineers to size and verify thermal and AC performance precisely.

This part is suited to engineers and procurement teams specifying general-purpose power filtering or AC-capable decoupling on high-density PCBs where automated assembly, RoHS compliance, and long-term elevated-temperature endurance are priorities.

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