UCZ1K391MNS1MS

The UCZ1K391MNS1MS is a chip-type aluminum electrolytic capacitor designed for surface-mount applications that require reliable operation at elevated temperatures. It delivers 390 µF at 80 V in an SMD radial can package optimized for automated assembly and long-term high-temperature endurance.

Targeted for demanding environments, this capacitor combines a wide operating range (−40 °C to +125 °C), AEC-Q200 qualification, and specific ESR characterization at low temperature to support robust power filtering and decoupling in temperature-critical systems.

Key Features

• Capacitance & Voltage — 390 µF rated capacitance at 80 V provides bulk energy storage for power rails and decoupling in compact designs.
• High-temperature capability — Specified for operation from −40 °C to +125 °C with a rated lifetime of 4000 hours at 125 °C, enabling reliable performance in elevated-temperature systems.
• Low-temperature ESR specification — ESR is specified after the −40 °C test and measured at 100 kHz (120 mΩ), allowing predictable impedance behavior across temperature extremes.
• Ripple current handling — Supports 800 mA at 120 Hz and 1.6 A at 10 kHz, suitable for applications with significant AC ripple or switching noise.
• Surface-mount radial can package — Radial, can-style SMD package (L: 2.15 × D: 1.6 cm) designed for automated placement; compatible with carrier-tape fed assembly.
• Polarized aluminum electrolytic — Traditional polarized construction for bulk capacitance in compact footprints.
• Standards and compliance — AEC-Q200 qualified and RoHS compliant for regulated production environments.
• Mounting footprint — Recommended surface-mount land size L: 1.63 × W: 1.63 cm to support reliable soldering and mechanical stability.

Typical Applications

• Automotive electronics — Designed for electronic control units and power modules where AEC-Q200 qualification and operation up to +125 °C are required.
• High-temperature power systems — Bulk energy storage and smoothing in power supplies and converters operating in elevated ambient temperatures (−40 °C to +125 °C).
• Automated surface-mount assembly — Carrier-tape compatible package enables high-volume placement for production lines requiring SMD radial can components.

Unique Advantages

• High-temperature endurance: 4000 hours rated life at 125 °C provides predictable long-term performance in hot environments.
• AEC-Q200 qualification: Supports use in applications requiring automotive-grade component qualification.
• Low-temperature ESR characterization: ESR specified following −40 °C testing improves design confidence for cold-start and low-temperature operation.
• Robust ripple handling: Specified ripple current at both 120 Hz and 10 kHz helps control heating and maintain stability under AC stress.
• SMD-ready package: Radial can SMD format and carrier-tape compatibility simplify automated placement and assembly workflows.
• Regulatory compliance: RoHS conformity supports deployment in regulated manufacturing environments.

Why Choose UCZ1K391MNS1MS?

The UCZ1K391MNS1MS delivers a combination of high capacitance (390 µF), elevated voltage rating (80 V), and validated performance across −40 °C to +125 °C, making it well suited for designs that demand stable bulk capacitance under thermal stress. Its AEC-Q200 qualification and low-temperature ESR specification provide additional engineering assurance for applications requiring automotive-grade reliability and predictable impedance behavior at cold temperatures.

This part is appropriate for engineers and procurement teams building high-temperature power systems or automotive electronics that require an SMD-compatible, carrier-tape ready aluminum electrolytic with defined ripple current capability and long-term thermal endurance.

Request a quote or submit an inquiry to receive pricing, availability, and lead-time information for UCZ1K391MNS1MS. Our team can provide details on sampling and order options to support your design schedule.