UCZ2A221MNJ1MS

The UCZ2A221MNJ1MS is a chip-type aluminum electrolytic capacitor designed for demanding high-temperature environments. As a surface-mount, polarized can-style capacitor in the Nichicon UCZ series, it delivers 220 µF at 100 V with a rated operating range from −40°C to +125°C.

Targeted at applications that require reliable filtering and energy buffering under elevated temperatures, this part combines high-voltage capability, a specified low-temperature ESR performance, and AEC-Q200 qualification for use in automotive and other high-reliability systems.

Key Features

• Capacitance & Voltage — 220 µF capacitance rated at 100 V, with ±20% tolerance for bulk energy storage and smoothing on power rails.
• High-temperature operation — Specified to operate from −40°C to +125°C, enabling use in thermally demanding environments.
• Low-temperature ESR specification — ESR defined at −40°C and measured as 120 mOhm at 100 kHz, providing predictable performance across temperature extremes.
• Long endurance at high temperature — Designed for 4000 hours of operation at 125°C, supporting extended lifetime under sustained elevated temperatures.
• Ripple current capability — Rated ripple currents of 800 mA at 120 Hz and 1.6 A at 10 kHz to support switching converters and power-supply filtering.
• Surface-mount, tape-fed packaging — Radial, can-style SMD package compatible with automatic mounting machines fed by carrier tape for high-volume assembly.
• Quality and compliance — AEC-Q200 qualified and RoHS compliant (2011/65/EU, (EU)2015/863), meeting industry requirements for reliability and environmental regulation.
• Mechanical footprint — Compact dimensions: L 2.15 × D 1.6 cm; recommended PCB land size L 1.63 × W 1.63 cm for surface-mount placement.

Typical Applications

• Automotive power electronics — Bulk filtering and energy buffering in ECUs and power-management modules where AEC-Q200 qualification and high-temperature operation are required.
• DC–DC converters — Output and input smoothing for converters operating at elevated temperatures and high switching frequencies, supported by defined ripple current ratings.
• Industrial control systems — Energy storage and decoupling in motor controllers and industrial power supplies exposed to high ambient temperatures.
• High-reliability electronics — Applications that require long-endurance capacitors rated for thousands of hours at 125°C for maintenance-sensitive systems.

Unique Advantages

• Temperature-rated robustness: Operation from −40°C to +125°C allows consistent performance across extreme thermal conditions.
• Defined low-temperature ESR: ESR specified after −40°C testing ensures predictable impedance behavior in cold-start and low-temperature environments.
• High-voltage capability: 100 V rating supports higher-voltage power rails and broadens application flexibility compared with lower-voltage electrolytics.
• Long high-temperature lifetime: 4000 hours at 125°C helps reduce maintenance and replacement frequency in long-life designs.
• Assembly-friendly packaging: Tape-fed surface-mount can simplifies automated placement and improves manufacturing throughput.
• Industry qualification and compliance: AEC-Q200 qualification and RoHS compliance support deployment in regulated and automotive environments.

Why Choose UCZ2A221MNJ1MS?

UCZ2A221MNJ1MS aligns performance and reliability for designers needing a high-voltage electrolytic capacitor that endures elevated temperatures and long runtimes. With explicit ESR characterization at low temperature, defined ripple current ratings, and a long rated life at 125°C, it is suited to power-dense designs where predictable behavior across temperature is essential.

This part is appropriate for engineers and procurement teams building automotive, industrial, and other high-reliability systems that require AEC-Q200 qualification, tape-fed surface-mount packaging, and verifiable electrical performance under stress. The combination of high-voltage rating, compact can-style SMD footprint, and long-term endurance provides a practical option for robust power-supply designs.

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