UCZ1K521MNS1MS

The UCZ1K521MNS1MS is a chip-type aluminum electrolytic capacitor designed for surface-mount assembly and high-temperature operation. It delivers 520 µF at a rated voltage of 80 V with polarization and is built for applications that require stable performance from −40 °C to +125 °C.

Engineered for reliability, this part includes low-temperature ESR specification, AEC-Q200 qualification, carrier-tape compatibility for automatic mounting, and long-term endurance at elevated temperature, making it suitable for demanding electronic environments.

Key Features

• Capacitance and Voltage — 520 µF rated capacitance at 80 V provides substantial bulk capacitance for power and decoupling applications.
• High Temperature Range — Specified to operate from −40 °C to +125 °C, supporting high-temperature system designs.
• Reliability & Endurance — Endurance rated to 4000 hours at 125 °C, offering long-term stability under continuous high-temperature stress.
• Low-Temperature ESR Specification — ESR characterized after −40 °C testing, with an ESR of 110 mOhm measured at 100 kHz for predictable performance across temperature extremes.
• Ripple Current Capability — Handles 850 mA at 120 Hz and 1.7 A at 10 kHz, supporting both low- and high-frequency ripple conditions.
• Surface-Mount, Tape-Feed Ready — Chip-type, surface-mount can package compatible with automatic mounting machines fed by carrier tape for streamlined assembly.
• Industry Qualification — AEC-Q200 Qualified and RoHS compliant for regulated environments and higher reliability requirements.
• Compact Footprint — Physical size L: 2.15 × D: 1.8 cm with recommended land pattern 1.83 × 1.83 cm to simplify board layout.

Typical Applications

• Automotive Electronics — Designed for electronic modules that require components qualified to AEC-Q200 and operation to +125 °C.
• High‑Temperature Electronic Systems — Suited to systems where components must maintain capacitance and ESR characteristics at elevated ambient temperatures.
• Automated Surface-Mount Production — Carrier-tape compatibility enables efficient placement in high-volume SMT assembly lines.
• Long-Life Power Subsystems — Endurance rating of 4000 hours at 125 °C supports designs needing sustained high-temperature reliability.

Unique Advantages

• Validated High-Temperature Endurance: 4000 hours at 125 °C demonstrates sustained performance under prolonged thermal stress.
• Low-Temperature ESR Characterization: ESR specified after −40 °C testing and measured at 110 mOhm (100 kHz) reduces uncertainty in cold-start and low-temperature conditions.
• Broad Ripple Handling: Rated ripple currents of 850 mA (120 Hz) and 1.7 A (10 kHz) accommodate a range of power-frequency and switching-frequency environments.
• AEC-Q200 Qualified: Industry qualification supports use in designs requiring recognized reliability standards.
• SMT-Ready Packaging: Chip-type can with carrier-tape compatibility simplifies automated placement and reduces assembly cycle time.
• Compact, Board-Friendly Dimensions: Small footprint and defined land pattern (1.83 × 1.83 cm) help conserve PCB area while providing substantial capacitance.

Why Choose UCZ1K521MNS1MS?

UCZ1K521MNS1MS combines high capacitance and elevated voltage rating with explicit qualification for −40 °C to +125 °C operation, making it a robust option for engineers designing for harsh thermal environments and long-term reliability. The part’s low-temperature ESR specification, measurable ripple current performance, and AEC-Q200 qualification make it a practical choice where predictable electrical behavior and industry-recognized reliability matter.

This capacitor is well suited for design teams and procurement sourcing components for automotive-grade modules, high-temperature electronics, and automated SMT production where lifecycle endurance and assembly compatibility are priorities.

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