UUN1J221MNJ1MS

The UUN1J221MNJ1MS is a chip‑type, bi‑polarized aluminum electrolytic capacitor from Nichicon’s UUN series, optimized for surface mounting on high‑density PCBs. It delivers 220 µF at 63 V in a radial can SMD package designed for automated, carrier‑tape assembly.

Engineered for general‑purpose applications, this part offers wide operating temperature capability (−55 °C to +105 °C) and RoHS compliance, making it suitable for designs that require higher capacitance in a surface‑mount form factor.

Key Features

• Capacitance & Voltage — 220 µF rated capacitance at 63 V with ±20% tolerance, providing a stable energy storage element for general‑purpose designs.
• Bi‑Polarized Construction — Bi‑polarized design allows operation without fixed polarity, enabling use in circuits where polarity can reverse.
• Wide Temperature Range & Endurance — Operating from −55 °C to +105 °C with a rated lifetime of 2000 hours at 105 °C (endurance test: rated voltage applied with polarity inverted every 250 hours).
• Ripple Current Performance — Specified ripple current of 440 mA at 120 Hz (low frequency) and 660 mA at 10 kHz (high frequency), supporting smoothing and decoupling under AC ripple conditions.
• Low Loss Characteristics — Tangent of loss angle (tan δ) for 63 V is specified up to 0.10 at 120 Hz, 20 °C, aiding efficient performance in AC and decoupling applications.
• Surface‑Mount, Tape‑Feed Packaging — Radial, can SMD package designed for automatic mounting machines fed with carrier tape; recommended PCB land size L: 1.83 × W: 1.83 cm for assembly.
• RoHS Compliant — Meets RoHS directive (2011/65/EU, (EU)2015/863), supporting regulatory requirements for lead‑free assemblies.

Typical Applications

• Power Supply Decoupling — Provides bulk capacitance and ripple absorption in DC/DC converter outputs and power rails where polarity may vary.
• Signal and AC‑Coupling Circuits — Bi‑polarized construction enables use in coupling and filtering stages that encounter bipolar or alternating signals.
• High‑Density PCB Designs — Surface‑mount radial can format and tape‑feed compatibility support automated assembly in compact, densely populated boards.

Unique Advantages

• Higher Capacitance in Chip Form — 220 µF in a chip‑type SMD package gives designers more capacitance without resorting to large through‑hole components.
• Polarity Flexibility — Bi‑polarized design removes constraints on installation orientation and supports circuits with reversing voltages.
• Robust Thermal Endurance — Rated for 2000 hours at 105 °C, enabling sustained operation in elevated temperature environments.
• Clear Performance Metrics — Specified ripple currents at 120 Hz and 10 kHz and defined tan δ make it straightforward to evaluate for smoothing and decoupling roles.
• Assembly‑Friendly Packaging — Carrier‑tape compatibility and a defined PCB land footprint simplify automated placement and manufacturing integration.
• Regulatory Compliance — RoHS compliance supports lead‑free production and regulatory alignment.

Why Choose UUN1J221MNJ1MS?

UUN1J221MNJ1MS positions itself as a reliable, higher‑capacitance surface‑mount aluminum electrolytic solution for general‑purpose designs that require bi‑polar operation and robust thermal endurance. Its combination of 220 µF/63 V rating, specified ripple current performance, and tolerance to −55 °C to +105 °C makes it suitable for compact, automated assemblies where dependable bulk capacitance and polarity flexibility are needed.

Designers targeting high‑density PCBs and automated production will find the UUN1J221MNJ1MS balances capacitance, thermal endurance, and assembly compatibility while meeting RoHS requirements under the Nichicon UUN series specifications.

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