UCX1A221MCS1GS

The UCX1A221MCS1GS is a Nichicon UCX-series chip-type aluminum electrolytic capacitor designed for high-temperature operation and surface-mount assembly. With a 220 µF capacitance at 10 V and a compact SMD can package, it targets automotive and other high-temperature electronics where reliability and thermal endurance are required.

Key value propositions include operation across a wide temperature range (−40 °C to +135 °C), AEC-Q200 qualification, and specifications that address low-temperature ESR and ripple handling for power applications in demanding environments.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a rated voltage of 10 V and tolerance of ±20%.
• Wide Temperature Range — Specified for operation from −40 °C to +135 °C, enabling use in high-temperature systems.
• Reliability & Qualification — AEC-Q200 qualified and RoHS compliant for regulated and automotive-grade applications.
• Endurance at Elevated Temperature — Rated lifetime of 2000 hours at 135 °C, with endurance characteristics defined in the datasheet.
• Low-Temperature ESR Characterization — ESR specified at 200 mΩ (measured at 100 kHz); the datasheet includes ESR specification following the −40 °C test.
• Ripple Current Capability — Ripple current ratings of 135 mA at 120 Hz and 270 mA at 10 kHz for power smoothing and filtering tasks.
• Surface-Mount Package — SMD radial/can package sized L: 1.0 cm × D: 0.8 cm with surface-mount land size of 8.3 × 8.3 mm; compatible with automatic mounting using carrier tape.
• Polarized Design — Polarized electrolytic capacitor for DC applications requiring bulk capacitance in compact footprints.

Typical Applications

• Automotive electronic modules — Suitable for control units and modules that require components qualified to AEC-Q200 and capable of operating to +135 °C.
• High-temperature power stages — Bulk energy storage and filtering in power supplies and DC–DC converters operating in elevated ambient temperatures.
• Compact surface-mount assemblies — SMD can package and tape-feed compatibility for automated assembly in space-constrained board designs.

Unique Advantages

• High-temperature endurance: 2000-hour lifetime at 135 °C provides predictable aging characteristics for thermal environments.
• Automotive-grade qualification: AEC-Q200 classification and RoHS compliance support use in regulated automotive electronics.
• Measured ESR at low temperature: ESR specified (200 mΩ at 100 kHz) with datasheet coverage after −40 °C testing, offering clarity for low-temperature performance planning.
• Practical ripple capability: Defined ripple currents at 120 Hz and 10 kHz enable designers to size capacitors for real-world power smoothing requirements.
• Pick-and-place ready: Designed for automatic mounting with carrier tape to streamline high-volume assembly.
• Compact SMD can footprint: 1.0 × 0.8 cm package allows higher-density board layouts without sacrificing bulk capacitance.

Why Choose UCX1A221MCS1GS?

The UCX1A221MCS1GS combines a compact surface-mount can with specifications tailored for high-temperature and automotive applications: 220 µF at 10 V, operation from −40 °C to +135 °C, AEC-Q200 qualification, and a 2000-hour endurance rating at maximum temperature. Its ESR and ripple current specifications provide measurable parameters for power designers managing thermal and frequency-dependent performance.

This part is well suited to engineers designing automotive control units, power conversion stages, and other systems that demand reliable bulk capacitance in a small SMD package with documented high-temperature behavior and assembly compatibility.

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