UCX1H391MNQ1MS

The UCX1H391MNQ1MS is a Nichicon UCX series aluminum electrolytic chip capacitor in a surface-mount can package. It combines a 390 µF capacitance with a 50 V rating and is designed for high-reliability use in elevated temperature environments.

Engineered for demanding thermal and electrical conditions, this chip-type capacitor delivers low-temperature ESR specification, defined ripple current capability, and AEC-Q200 qualification for applications that require robust performance between −40°C and +135°C.

Key Features

• Electrical Performance 390 µF capacitance with ±20% tolerance and a 50 V rated voltage for energy storage and decoupling in mid-voltage power systems.
• Low-Temperature ESR & Loss Specified tanδ of 0.16 (measured at 20°C, 120 Hz) and an ESR of 90 mΩ at 20°C/100 kHz; ESR specification is verified after −40°C testing.
• Ripple Current Capability Low-frequency ripple current 375 mA (120 Hz) and high-frequency ripple current 750 mA (10 kHz) for effective smoothing across frequency ranges.
• Leakage & Endurance Typical leakage current 195 µA and rated endurance of 2000 hours at 135°C under applied rated voltage, with defined post-test limits for capacitance change and tanδ.
• Temperature Range & Reliability Operating temperature −40°C to +135°C and AEC-Q200 qualification support use in thermally challenging environments.
• Surface-Mount Chip Package Chip-type SMD can (φ12.5 × 13.5 mm), compatible with carrier tape feeding and automatic placement; embossed carrier taping packaging for production-ready pick-and-place.
• RoHS Compliant Manufactured in compliance with RoHS directives.

Typical Applications

• Automotive Electronics — Suitable for automotive electronic modules that benefit from AEC-Q200 qualification and wide −40°C to +135°C temperature capability.
• Power Filtering and Decoupling — Bulk energy storage and smoothing for power supplies where 390 µF and 50 V are required along with defined ripple current handling.
• High-Temperature Embedded Systems — Surface-mount power modules and control electronics operating in elevated ambient temperatures that require long-term endurance at 135°C.
• Compact SMD Assemblies — Chip can package and embossed carrier taping support automated assembly in dense board layouts.

Unique Advantages

• Validated Low-Temperature ESR — ESR specification confirmed after −40°C testing provides predictable behavior in cold-start and low-temperature conditions.
• High-Temperature Endurance — 2000 hours rated life at 135°C under rated voltage delivers long-term reliability for thermally stressed designs.
• Dual-Frequency Ripple Handling — Rated ripple currents at both 120 Hz and 10 kHz offer practical performance data for AC and switching environments.
• OEM-Friendly Packaging — Embossed carrier taping and chip-type SMD can streamline automated placement and assembly processes.
• Industry Qualification — AEC-Q200 qualification and RoHS compliance support use where industry-recognized reliability and environmental compliance are required.

Why Choose UCX1H391MNQ1MS?

The UCX1H391MNQ1MS positions itself as a robust surface-mount electrolytic solution for designs demanding stable capacitance, controlled ESR at low temperatures, and verified endurance at elevated temperatures. Its combination of a 390 µF capacitance, 50 V rating, and explicit ripple current and ESR specifications makes it well suited to power filtering and decoupling roles in thermally challenging environments.

Designed and manufactured by Nichicon with AEC-Q200 qualification and RoHS compliance, this capacitor is ideal for engineers and procurement teams specifying components for high-reliability electronics where long-term thermal performance and assembly compatibility are important.

Request a quote or contact sales for availability, lead times, and order quantities for the UCX1H391MNQ1MS. Our team can provide pricing and delivery information to support your design and production planning.