UCX1E821MNJ1MS

The UCX1E821MNJ1MS is a chip‑type aluminum electrolytic capacitor from Nichicon's UCX series, engineered for reliable operation in high‑temperature environments. It delivers 820 µF at 25 V in a surface‑mount radial can package designed for automated carrier‑tape placement.

Built for demanding applications, this part is rated from -40 °C to +135 °C, AEC‑Q200 qualified, and RoHS compliant, combining temperature resilience with defined electrical characteristics for systems that require long‑term stability at elevated temperatures.

Key Features

• Capacitance and Voltage: 820 µF rated at 25 V, with a tolerance of -20% to +20% for predictable bulk energy storage and filtering.
• High‑Temperature Operation: Specified operating range from -40 °C to +135 °C and endurance rated to 2000 hours at 135 °C, enabling sustained performance in hot environments.
• Low‑Temperature ESR Characterization: ESR specified after the -40 °C test, with an equivalent series resistance of 70 mΩ at 100 kHz for defined impedance behavior across temperature extremes.
• Ripple Current Ratings: 375 mA at 120 Hz and 750 mA at 10 kHz, giving clear limits for AC stress in power applications.
• Surface‑Mount, Automated Assembly Ready: Chip‑type radial can SMD package compatible with carrier tape for placement on automatic mounting machines.
• Quality and Compliance: AEC‑Q200 qualified and RoHS compliant (2011/65/EU, (EU)2015/863), supporting regulated design requirements.

Typical Applications

• Automotive Electronics — AEC‑Q200 qualification and -40 °C to +135 °C rating make this capacitor suitable for use in automotive electronic modules requiring high‑temperature tolerance.
• High‑Temperature Electronics — Designed for systems that must maintain capacitance and reliability at elevated ambient temperatures up to +135 °C.
• Automated Surface‑Mount Production — Carrier‑tape compatibility ensures efficient integration into automated assembly workflows.

Unique Advantages

• Elevated temperature endurance: Rated for 2000 hours at 135 °C, providing a measurable reliability baseline for thermal stress environments.
• Verified low‑temperature ESR: ESR is specified after -40 °C testing (70 mΩ at 100 kHz), giving designers confidence in performance across the full temperature range.
• Clear ripple current limits: Specified ripple current at both low and high frequencies helps define thermal and electrical derating in power designs.
• Automated assembly friendly: Chip‑type radial can SMD and carrier‑tape feed compatibility reduce handling complexity and support high‑volume placement.
• Standards compliance: AEC‑Q200 qualification and RoHS compliance support regulated product development and procurement requirements.

Why Choose UCX1E821MNJ1MS?

UCX1E821MNJ1MS is positioned for engineers who need a surface‑mount aluminum electrolytic capacitor that combines high capacitance with a verified high‑temperature rating and defined ESR behavior at low temperature. Its 820 µF / 25 V specification, endurance at 135 °C, and ripple current ratings provide clear, testable parameters for power system design.

This part is well suited to teams developing automotive or high‑temperature electronic systems that require certified components, automated assembly compatibility, and long‑term operational stability backed by Nichicon's UCX series specifications.

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