UCZ1H391MNJ1MS

The UCZ1H391MNJ1MS is a Nichicon UCZ-series chip-type aluminum electrolytic capacitor designed for surface-mount assembly and high-temperature operation. Engineered for demanding environments, it delivers 390 µF at 50 V with rated operation from -40 °C to +125 °C and is AEC-Q200 qualified for use in automotive and other high-reliability applications.

With a 3000-hour endurance rating at 125 °C, defined ESR after low-temperature testing, and form factor optimized for automated tape-and-reel placement, this capacitor is intended for power and decoupling roles in space- and temperature-constrained electronic assemblies.

Key Features

• Chip SMD construction — Chip-type aluminum electrolytic capacitor in a radial can SMD package, compatible with automated mounting machines fed by carrier tape.
• High temperature capability — Rated for continuous operation from -40 °C to +125 °C, with endurance specified at elevated temperature for long-term reliability.
• Automotive-grade qualification — AEC-Q200 qualified, making it suitable for applications that require established automotive reliability standards.
• Capacitance and voltage — 390 µF capacitance at a 50 V rated voltage with tolerance of ±20% (–20% to +20%).
• Low-temperature ESR characterization — ESR specified as 100 mΩ at 100 kHz and includes ESR specification verified after testing at –40 °C.
• Endurance — Rated lifetime of 3000 hours at 125 °C, supporting long-term operation in elevated-temperature systems.
• Ripple current capability — Specified ripple handling of 650 mA at 120 Hz and 1.3 A at 10 kHz for power conditioning and decoupling tasks.
• Compact footprint — Part dimensions L: 1.35 × D: 1.25 cm with recommended land size L: 1.28 × W: 1.28 cm for PCB layout and automated placement.
• Regulatory compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Automotive power modules — Bulk decoupling and smoothing in automotive control units where AEC-Q200 qualification and +125 °C operation are required.
• Motor drive and power conversion — DC-link and output filtering in compact inverters and converters that demand high ripple handling and elevated-temperature endurance.
• Industrial electronics — Power conditioning in industrial control and instrumentation that operate in high ambient temperatures.
• Embedded systems — Board-level decoupling and energy-storage for processors, analog front-ends, and power management circuits in space-limited designs.

Unique Advantages

• AEC-Q200 qualification: Provides documented suitability for applications that require automotive-grade component reliability.
• High-temperature endurance: 3000 hours at 125 °C supports designs that must operate continuously at elevated temperatures without premature degradation.
• Measured low-temperature ESR: ESR specified at 100 mΩ (100 kHz) and characterized after −40 °C testing gives designers predictable impedance behavior across wide temperature ranges.
• Surface-mount, tape-and-reel compatible: Chip SMD form factor and carrier-tape compatibility streamline automated assembly for volume production.
• Robust ripple capability: Specified ripple currents at both low and high frequencies (650 mA @120 Hz, 1.3 A @10 kHz) support demanding power-filtering roles.

Why Choose UCZ1H391MNJ1MS?

UCZ1H391MNJ1MS positions itself as a durable, high-temperature surface-mount electrolytic solution for designers needing reliable bulk capacitance in constrained footprints. Its combination of AEC-Q200 qualification, long high-temperature endurance, and characterized ESR over temperature makes it well suited for automotive and industrial power systems where predictable performance and assembly compatibility matter.

Choose this part when your design requires a compact 390 µF, 50 V polarized capacitor with verified ripple handling and temperature resilience, and when automated production and RoHS compliance are priorities.

Request a quote or submit a parts inquiry to receive pricing, availability, and tape-and-reel ordering information for UCZ1H391MNJ1MS.