UUN1A222MNJ1MS

The UUN1A222MNJ1MS is a chip-type, bi-polarized aluminum electrolytic capacitor in Nichicon’s UUN series designed for surface mounting on high‑density PC boards. It delivers a higher capacitance option in an SMD radial can package, suited for general-purpose circuits that require bi‑polar operation and robust temperature tolerance.

Key value comes from its 2.2 mF capacitance at a 10 V rating, a broad operating temperature range from −55°C to 105°C, and series-level endurance and mounting compatibility intended for automated assembly and reliable field operation.

Key Features

• Capacitance & Voltage — 2.2 mF capacitance rated at 10 V, with a tolerance of −20% to +20% to match common design requirements for bulk storage and filtering.
• Bi‑Polar Construction — Bi‑polarized design supports applications that require AC or polarity‑reversing conditions within the specified endurance limits.
• Wide Temperature Range — Specified for operation from −55°C to 105°C, enabling use across a broad set of environmental conditions.
• Endurance — Series endurance is defined as 2000 hours at 105°C with polarity inversion every 250 hours; after this test the capacitance change remains within ±20%, tan δ within specified limits, and leakage current at or below initial values.
• Ripple Performance — Rated ripple current characteristics include 830 mA at 120 Hz and 954.5 mA at 10 kHz, with frequency coefficients provided by the series for calculating ripple at other frequencies.
• SMD Radial Can Package — Chip-type radial can for surface mounting; physical size L: 2.15 cm × D: 1.8 cm with a recommended land pattern of 1.83 cm × 1.83 cm, and compatible with carrier‑tape automated placement.
• RoHS Compliant — Manufactured in compliance with RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑Purpose Electronics — Suited for bulk decoupling and energy storage on high‑density surface‑mount PCBs in consumer and industrial equipment.
• AC/Bi‑polar Circuits — Appropriate where bi‑polar capacitors are required for circuits that experience polarity inversion within the capacitor’s endurance specification.
• Environments with Wide Temperature Variation — Useful in systems that must maintain capacitance and ripple handling across −55°C to 105°C.

Unique Advantages

• Higher Capacitance in SMD Form — 2.2 mF value provides increased bulk storage capacity while remaining in a chip‑type radial can suitable for surface mounting.
• Bi‑polar Operation — Eliminates the requirement for series blocking capacitors in applications where polarity may reverse, simplifying design.
• Designed for Automated Assembly — Package and carrier‑tape compatibility support high‑volume surface‑mount production.
• Validated Endurance — Series endurance rating of 2000 hours at 105°C with defined acceptance criteria supports reliability planning for long‑life applications.
• Measured Ripple Data — Provided ripple current figures at 120 Hz and 10 kHz help engineers size capacitors for filtering and smoothing tasks.
• Regulatory Compliance — RoHS conformity supports use in designs requiring restricted‑substance compliance.

Why Choose UUN1A222MNJ1MS?

The UUN1A222MNJ1MS positions itself as a practical solution when designers need higher capacitance in a surface‑mount, bi‑polar aluminum electrolytic capacitor. Its combination of 2.2 mF at 10 V, broad −55°C to 105°C operating range, and defined endurance characteristics makes it a solid choice for general‑purpose power‑conditioning and AC‑tolerant circuits on high‑density PCBs.

For engineering teams balancing board space, automated assembly, and predictable lifetime behavior, this Nichicon UUN series part offers verifiable specifications for capacitance, ripple handling, and thermal endurance to support reliable, repeatable designs.

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