UCZ1K331MNS1MS

The UCZ1K331MNS1MS is a chip‑type aluminum electrolytic capacitor designed for high‑reliability applications that require operation up to +125°C. As part of the UCZ series, it combines a 330 µF capacitance with an 80 V rating in a surface‑mount radial can package suitable for automated tape‑fed assembly.

Key value comes from its high temperature endurance, AEC‑Q200 qualification and low‑temperature ESR specification, making it appropriate for demanding electronic power designs where long life, stable ESR, and high ripple handling are required.

Key Features

• Capacitance & Voltage: 330 µF nominal capacitance with an 80 V rated voltage and ±20% tolerance for bulk energy storage and decoupling.
• Wide Temperature Range: Specified operating range from −40°C to +125°C to support elevated‑temperature electronics.
• High‑Temperature Endurance: 3,500 hours lifetime at 125°C, enabling sustained performance in thermal stress environments.
• Low‑Temperature ESR Control: Added ESR specification after −40°C testing plus a listed ESR of 170 mΩ at 100 kHz to maintain predictable impedance across temperatures.
• Ripple Current Capability: 550 mA at 120 Hz and 1.1 A at 10 kHz for handling AC ripple in power circuits.
• Automotive Qualification & RoHS: AEC‑Q200 qualified and RoHS compliant for regulated and high‑reliability system designs.
• Surface‑Mount, Tape‑Fed Package: Chip‑type radial can SMD package sized L: 1.65 × D: 1.8 cm with a recommended land size of 1.83 × 1.83 cm and compatible with automatic mounting machine fed with carrier tape.
• Polarized Design: Polar construction for straightforward integration into DC power rails.

Typical Applications

• Automotive electronics: Bulk energy storage and decoupling in control modules and power assemblies that require AEC‑Q200 qualification and +125°C operation.
• Power supply filtering: Smoothing and ripple suppression in high‑voltage DC rails where 80 V rating and high ripple handling are required.
• High‑temperature electronic systems: Use in densely packaged or thermally stressed boards where long endurance at elevated temperatures is critical.

Unique Advantages

• High‑temperature reliability: 3,500 hours rated life at 125°C supports extended service in hot environments, reducing maintenance and replacement cycles.
• Predictable ESR across temperature: Low‑temperature ESR specification and measured ESR (170 mΩ at 100 kHz) enable designers to size decoupling networks with confidence.
• Automated assembly friendly: Designed for tape‑fed automatic mounting machines to streamline high‑volume PCB assembly.
• High ripple tolerance: Specified ripple currents at both low and high frequency improve performance in switching power and motor drive applications.
• Standards compliance: AEC‑Q200 qualification and RoHS compliance simplify qualification for regulated sectors and controlled‑substance requirements.

Why Choose UCZ1K331MNS1MS?

The UCZ1K331MNS1MS positions itself as a robust, high‑temperature surface‑mount electrolytic solution for power systems requiring 80 V operation, substantial bulk capacitance, and reliable performance at up to +125°C. Its AEC‑Q200 qualification and defined low‑temperature ESR make it suitable for engineers specifying components for rugged or regulated applications.

Choose this part when your design needs a proven electrolytic chip capacitor that balances capacitance density, controlled impedance behavior, and assembly compatibility for long‑term deployment in thermally demanding environments.

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