UUN1J221MNQ1MS

The UUN1J221MNQ1MS is a chip-type, bi-polarized aluminum electrolytic capacitor in Nichicon’s UUN series, offering 220 µF capacitance at a 63 V rating. It is designed for surface mounting on high-density PC boards and for use in general-purpose electronic applications where higher capacitance in an SMD form factor is required.

Key value propositions include broad operating temperature capability from −55 °C to +105 °C, RoHS compliance, and endurance performance validated at elevated temperature (2000 hours at 105 °C with polarity inversion during the test).

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a 63 V rated voltage; capacitance tolerance ±20% (measured at 120 Hz, 20 °C).
• Bi-polarized Construction — Part of Nichicon’s UUN bi-polarized series, intended for operations across the −55 °C to +105 °C temperature range.
• Temperature Range & Endurance — Operating temperature range of −55 °C to +105 °C; endurance test specified as 2000 hours at 105 °C with polarity inversion every 250 hours (capacitance change within ±20%, tan δ and leakage current limits defined in the datasheet).
• Ripple Current Performance — Rated ripple current of 440 mA at 120 Hz and 660 mA at 10 kHz; frequency coefficients for 100–470 µF parts: 50 Hz = 0.80, 120 Hz = 1.00, 300 Hz = 1.23, 1 kHz = 1.34, 10 kHz+ = 1.50.
• Electrical Quality Metrics — Maximum tan δ of 0.10 at the 63 V rating (measured at 120 Hz, 20 °C); leakage current specified as ≤ 0.03 · C · V (µA) after one minute at 20 °C.
• Surface-Mount Packaging — Chip-type radial can SMD package designed for high-density PCB assembly and compatible with automatic mounting machines fed with carrier tape; recommended land pattern size L 1.83 × W 1.83 cm.
• Physical Dimensions & Marking — Case dimensions L: 2.15 cm × D: 1.8 cm; case top marked with black print per datasheet.
• Regulatory — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• High-density PCBs — Designed for surface mounting on space-constrained, high-density printed circuit boards where larger capacitance in an SMD form factor is required.
• General-purpose electronic modules — Suitable for a wide range of general-purpose circuitry that requires 220 µF at 63 V with robust temperature and endurance characteristics.
• Automated assembly environments — Package and tape-feed compatibility make this part appropriate for production lines using automatic mounting equipment.

Unique Advantages

• Higher capacitance in a chip SMD form — Provides 220 µF in a chip-type radial can SMD package, enabling higher energy density on surface-mount designs.
• Wide operating temperature window — Rated for −55 °C to +105 °C operation, supporting designs exposed to broad temperature conditions.
• Endurance-validated performance — Datasheet endurance test (2000 hours at 105 °C with periodic polarity inversion) documents long-term stability criteria for capacitance, tan δ, and leakage.
• Measurable ripple handling — Published ripple current ratings (440 mA at 120 Hz, 660 mA at 10 kHz) and frequency coefficients allow predictable thermal and performance planning across frequencies.
• Manufacturing-ready packaging — Designed for carrier-tape automated mounting to streamline PCB assembly and reduce handling complexity.
• Regulatory compliance — RoHS-compliant construction aligns with regulatory requirements for many electronic products.

Why Choose UUN1J221MNQ1MS?

The UUN1J221MNQ1MS combines a high nominal capacitance (220 µF) and a 63 V rating with Nichicon’s UUN bi-polarized chip design, making it a practical choice for engineers needing elevated capacitance in a surface-mount package. Its specified ripple current performance, temperature range (−55 °C to +105 °C), and endurance testing provide objective data for thermal, lifetime, and reliability planning.

This part is well suited to design teams building general-purpose modules on high-density PCBs that require automated assembly, RoHS compliance, and documented electrical and endurance characteristics. Choosing this capacitor offers clear, datasheet-backed performance and predictable integration into production workflows.

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