UUN1H221MNQ1MS

The UUN1H221MNQ1MS is a chip‑type, bi‑polarized aluminum electrolytic capacitor designed for surface mounting on high‑density printed circuit boards. Its 220 µF, 50 V rating and bi‑polar construction support general‑purpose electronic designs that require higher capacitance in an SMD radial can form factor.

Engineered for wide temperature operation from -55 °C to +105 °C and compatible with automated carrier‑tape pick‑and‑place assembly, this part is suitable for applications that demand compact, surface‑mount electrolytic capacitance with defined ripple and endurance characteristics.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a 50 V rated voltage and ±20% tolerance at 120 Hz, 20 °C, providing a clear electrical specification for circuit design.
• Bi‑Polar Construction — Bi‑polarized design specified in the series; endurance testing includes polarity inversion every 250 hours during a 2000‑hour test at 105 °C.
• Wide Temperature Range — Specified operating range of -55 °C to +105 °C for operation across extreme ambient conditions.
• Endurance & Shelf Life — Rated for 2000 hours at 105 °C with defined limits: capacitance change within ±20%, tan δ up to 200% of initial spec, and leakage current not exceeding initial specified values; shelf life test defined at 105 °C for 1000 hours followed by voltage treatment.
• Ripple Current Performance — Nominal ripple current of 400 mA at 120 Hz and 600 mA at 10 kHz; frequency coefficients for 100–470 µF parts provide multipliers across 50 Hz–10 kHz (50 Hz: 0.80, 120 Hz: 1.00, 300 Hz: 1.23, 1 kHz: 1.34, 10 kHz: 1.50).
• Package & Assembly — Chip‑type radial can SMD package designed for surface mounting on high‑density PCBs and compatible with automatic mounting via carrier tape; case dimensions L: 16.5 mm × D: 18.0 mm and recommended PCB land size L: 18.3 mm × W: 18.3 mm.
• Electrical Quality Metrics — Leakage current specified as ≤ 0.03·C·V (µA) after 1 minute at 20 °C; tan δ (loss tangent) at 50 V is 0.12 maximum (measured at 120 Hz, 20 °C).
• RoHS Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose surface‑mount circuits — Provides bulk capacitance in compact SMD form for electronic assemblies where a bi‑polar electrolytic capacitor is specified.
• High‑density PCB assemblies — Chip‑type radial can package and carrier‑tape compatibility enable automated placement on densely populated boards.
• Wide‑temperature systems — Suitable for equipment that must operate across -55 °C to +105 °C, per the product’s rated temperature range.

Unique Advantages

• Higher capacitance in SMD form — 220 µF in a chip‑type radial can provides significant capacitance while remaining surface‑mount compatible for space‑constrained designs.
• Bi‑polarized capability — Series endurance testing includes polarity inversion, reflecting suitability for circuits that require bipolar operation.
• Defined ripple performance — Specified ripple currents at 120 Hz and 10 kHz with frequency coefficients for 100–470 µF help predict performance across operating frequencies.
• Extended endurance rating — 2000 hours at 105 °C with clear acceptance criteria for capacitance, tan δ and leakage current supports reliability planning.
• Designed for automated assembly — Carrier‑tape compatibility and surface‑mount package streamline integration into automated PCB manufacturing processes.
• Regulatory compliance — RoHS compliance supports use in products subject to restricted substance regulations.

Why Choose UUN1H221MNQ1MS?

UUN1H221MNQ1MS positions itself as a practical choice when you need a bi‑polar aluminum electrolytic capacitor with substantial capacitance in a surface‑mount radial can package. Its defined electrical parameters—220 µF at 50 V, specified ripple currents, leakage current formula, and tan δ limits—make performance predictable for engineering validation.

This part is suitable for designers implementing general‑purpose, high‑density surface‑mount designs that require wide temperature endurance and automated assembly compatibility. Its documented endurance and shelf life testing provide measurable reliability characteristics for long‑term planning.

Please request a quote or contact sales to discuss pricing, availability, and inclusion of UUN1H221MNQ1MS in your next design.