UCD1H391MNJ1MS

The UCD1H391MNJ1MS is a Nichicon chip-type aluminum electrolytic capacitor engineered for surface-mount, high-density PCB applications. It delivers 390 µF capacitance at a 50 V rating in a low-impedance SMD can suitable for automated carrier-tape mounting.

Designed for demanding temperature environments, this polarized capacitor is rated for operation from −55 °C to +105 °C, is AEC-Q200 qualified, RoHS compliant, and specified with endurance up to 5000 hours at +105 °C, making it suitable for robust automotive and industrial power applications.

Key Features

• Capacitance and Voltage — 390 µF nominal capacitance with a 50 V rated voltage and ±20% tolerance for bulk energy storage and decoupling.
• Low-Impedance Chip Design — Chip-type construction optimized for low impedance performance across frequency, improving ripple handling and transient response.
• High-Temperature Operation — Operational temperature range from −55 °C to +105 °C with specified endurance (5000 hours at 105 °C) for prolonged high-temperature reliability.
• Ripple Current Capability — Rated ripple currents of 450 mA at 120 Hz and 900 mA at 10 kHz to support power-supply filtering under dynamic loads.
• Surface-Mount Package — Radial can SMD package sized L: 1.35 cm × D: 1.25 cm with a recommended land size of 1.28 cm × 1.28 cm; compatible with automatic mounting via carrier tape.
• AEC-Q200 Qualified and RoHS Compliant — Meets AEC-Q200 qualification and RoHS directive requirements for automotive-grade environmental compliance.
• Polarized Component — Standard polarized electrolytic capacitor for DC power applications.

Typical Applications

• Automotive electronics — AEC-Q200 qualification and +105 °C endurance make this capacitor suitable for automotive power rails and electronics modules requiring robust temperature performance.
• Power supply filtering — 390 µF capacitance and rated ripple currents support smoothing and decoupling in DC–DC converters and onboard power supplies.
• High-density SMD power modules — Chip-type SMD can and carrier-tape compatibility enable placement in compact, automated assembly for space-constrained power modules and control units.

Unique Advantages

• Automotive-grade qualification — AEC-Q200 status provides clear traceability to automotive reliability expectations for engineers designing vehicle systems.
• High-temperature endurance — Specified for 5000 hours at +105 °C, supporting long-term reliability in elevated-temperature environments.
• Strong ripple handling — Documented ripple current ratings at both low and high frequencies improve performance in variable-load power applications.
• SMD-ready, automated assembly — Designed for surface mounting with carrier-tape feeding, simplifying high-volume production on high-density PCBs.
• Compact can footprint — Small L × D dimensions and defined land pattern help conserve board space while providing substantial capacitance.
• Regulatory compliance — RoHS compliance supports use in regulated supply chains.

Why Choose UCD1H391MNJ1MS?

The UCD1H391MNJ1MS combines a high-capacitance, low-impedance chip design with automotive-grade qualification and high-temperature endurance, making it well suited for engineers building reliable power systems for automotive and industrial applications. Its SMD can format and carrier-tape compatibility streamline automated assembly into compact, high-density boards.

For designs that require verified ripple handling, elevated operating temperatures up to +105 °C, and AEC-Q200 qualification, this Nichicon capacitor provides a specification-driven choice that aligns performance, manufacturability, and regulatory compliance.

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