UCX1E821MNQ1MS

The UCX1E821MNQ1MS is a chip-type aluminum electrolytic capacitor in a surface-mount radial can designed for high-reliability, high-temperature applications. It delivers 820 µF capacitance at a 25 V rating with a low-temperature ESR specification and carrier-tape packaging for automated assembly.

Targeted at environments requiring extended high-temperature endurance and stable ripple handling, this part is AEC-Q200 qualified and specified for continuous operation up to 135°C, making it suitable for demanding electronic assemblies where thermal and electrical reliability are critical.

Key Features

• Capacitance & tolerance — 820 µF nominal capacitance with a tolerance range of -20% to 20% for predictable energy storage and decoupling performance.
• Rated voltage — 25 V working voltage for mid-voltage power rails and filtering applications.
• Low-temperature ESR — ESR of 70 mΩ measured at 20°C/100 kHz, with added ESR specification after testing at -40°C to ensure performance across the full temperature range.
• Loss angle (tan δ) — tanδ of 0.18 measured at 20°C, 120 Hz, supporting reliable AC behavior and predictable dissipation.
• Ripple current capability — 375 mA at 120 Hz (low frequency) and 750 mA at 10 kHz (high frequency) for effective smoothing and decoupling under dynamic loads.
• Leakage current — Specified leakage current of 205 µA for predictable standby and bias characteristics.
• High-temperature endurance — Rated for 2000 hours at 135°C, meeting the demands of prolonged elevated-temperature operation.
• Robust packaging and assembly — Chip-type radial can, size φ12.5 × 13.5L, supplied in embossed carrier taping compatible with automated pick-and-place mounting.
• Standards and compliance — AEC-Q200 qualified and RoHS compliant.

Typical Applications

• Automotive electronics — Designed to meet AEC-Q200 requirements and operate up to 135°C, suitable for electronic modules in automotive environments.
• High-temperature electronic assemblies — Proven endurance at 135°C and packaged for automated SMT assembly makes it appropriate for power electronics in elevated-temperature systems.
• Automated surface-mount production — Embossed carrier taping and chip-type SMD form factor support high-volume pick-and-place workflows.

Unique Advantages

• High-temperature endurance: 2000 hours at 135°C provides long-term stability in harsh thermal conditions.
• Low-temperature ESR characterization: ESR specified after -40°C testing ensures reliable performance across the full -40°C to 135°C operating range.
• Strong ripple handling: Dual ripple-current specs (120 Hz and 10 kHz) support both low- and high-frequency filtering needs in power circuits.
• Automated assembly ready: Embossed carrier taping and chip SMD package simplify integration into automated production lines.
• Standards-backed reliability: AEC-Q200 qualification and RoHS compliance provide traceable credentials for regulated deployments.

Why Choose UCX1E821MNQ1MS?

The UCX1E821MNQ1MS combines high capacitance with targeted low-temperature ESR control and validated high-temperature endurance, making it an appropriate choice for designers addressing thermal, electrical and assembly challenges in demanding environments. Its combination of ripple capability, measured ESR, and AEC-Q200 qualification positions it for use in robust electronic modules where predictable performance over temperature and time is required.

This capacitor is especially relevant for teams designing automotive or other elevated-temperature systems that require components qualified to industry reliability standards and compatible with automated SMT assembly processes.

If you need pricing, availability, or sample evaluation for design validation, request a quote or contact sales to discuss lead times and ordering options.