UCZ1J391MNJ1MS

The UCZ1J391MNJ1MS is a chip-type aluminum electrolytic capacitor from Nichicon’s UCZ series engineered for high-reliability applications. It delivers 390 µF at 63 V in a compact surface-mount can package and is built for extended operation across a wide temperature range.

Designed for systems that demand robust power conditioning in harsh environments, this capacitor offers specified low-temperature ESR behavior, high ripple capability, and AEC‑Q200 qualification for automotive-grade reliability.

Key Features

• Capacitance & Voltage — 390 µF rated capacitance at 63 V for bulk energy storage and smoothing in power stages.
• Wide Operating Temperature — Rated from −40 °C to +125 °C to support high-temperature electronics environments.
• Low‑Temperature ESR Specification — ESR characterized after −40 °C testing; nominal ESR 130 mOhm at 100 kHz for efficient high‑frequency performance.
• High Ripple Performance — Ripple current capability of 950 mA at 120 Hz and 1.9 A at 10 kHz for demanding power-supply applications.
• Long Endurance at Elevated Temperature — Rated lifetime of 3500 hours at 125 °C for sustained high‑temperature use.
• Surface-Mount, Tape-Fed Package — Chip-type can package suitable for automated placement from carrier tape; compact footprint (L: 1.65 × D: 1.6 cm) with recommended land size L: 1.63 × W: 1.63 cm.
• Compliance & Qualification — AEC‑Q200 qualified and RoHS compliant for regulated and automotive applications.

Typical Applications

• Automotive Power Modules — Bulk filtering and decoupling in ECU power supplies where AEC‑Q200 qualification and high‑temperature endurance are required.
• DC‑DC Converters — Input/output smoothing in power conversion stages benefiting from low ESR at low temperature and high ripple current capability.
• Industrial Power Electronics — Energy storage and ripple suppression in systems that operate continuously at elevated temperatures up to 125 °C.

Unique Advantages

• Automotive‑grade Reliability: AEC‑Q200 qualification supports use in regulated automotive and similarly demanding environments.
• Verified Low‑Temperature ESR: ESR specifications include post‑test performance at −40 °C, helping maintain high‑frequency stability across the full temperature range.
• High Ripple Tolerance: Measured ripple current ratings at 120 Hz and 10 kHz enable reliable operation in both low- and high-frequency power circuits.
• High‑Temperature Endurance: 3500 hours rated life at 125 °C supports long-term deployment in hot operating conditions.
• Surface‑Mount Compatibility: Chip can package designed for carrier‑tape automated mounting simplifies PCB assembly and throughput.
• Regulatory Compliance: RoHS compliance ensures conformity with environmental directives for commercial and automotive applications.

Why Choose UCZ1J391MNJ1MS?

The UCZ1J391MNJ1MS combines a high capacitance-per-volume chip can package with electrical characteristics tailored for high‑temperature, high‑ripple power applications. Its AEC‑Q200 qualification and specified performance across −40 °C to +125 °C make it a strong option for designers specifying components for automotive and other harsh‑environment systems.

Choose this Nichicon UCZ series part when you need a compact surface‑mount electrolytic capacitor that balances capacitance, ESR stability, ripple handling, and proven endurance to support reliable power conditioning over the long term.

Request a quote or contact sales with the part number UCZ1J391MNJ1MS to discuss pricing, lead times, and availability for your production quantities.