UCM1H821MNS1MS

The UCM1H821MNS1MS is a chip-type, low-impedance aluminum electrolytic capacitor designed for surface-mount assembly. It delivers 820 µF at 50 V in a compact φ16 × 16.5 mm can, offering high capacitance and rated performance across a wide temperature range.

Targeted at automotive and other demanding electronics, this capacitor combines high ripple-current capability, long endurance at elevated temperature, vibration resistance, and carrier-tape packaging to support automated production and robust in-field operation.

Key Features

• Electrical Performance: 820 µF capacitance with ±20% tolerance and 50 V rated voltage. Low-frequency ripple current of 910 mA (120 Hz) and high-frequency ripple current of 1.82 A (10 kHz) support high-demand power circuits.
• Low Impedance Chip Type: Chip-type, low impedance construction optimized for surface-mount applications to reduce ESR-related losses in power trains and decoupling networks.
• Thermal and Endurance Characteristics: Operating temperature range −55 °C to 105 °C with a rated endurance of 5000 hours at 105 °C, suitable for sustained elevated-temperature operation.
• Reliability and Ruggedness: Vibration-resistant construction and AEC-Q200 qualification provide assurance for use in demanding environments.
• Mounting and Packaging: Surface-mount radial can (SMD) in φ16 × 16.5 mm package, supplied in embossed carrier taping for compatibility with automatic pick-and-place and reflow assembly.
• Leakage and Polarization: Polarized aluminum electrolytic design with specified leakage current (410 µA) following rated conditions.
• Environmental Compliance: RoHS compliant, meeting current lead-free and hazardous-substance requirements.

Typical Applications

• Automotive power electronics — AEC-Q200 qualification, wide temperature range (−55 °C to 105 °C) and 5000 h endurance at 105 °C make this capacitor suitable for power modules and supply circuits in automotive systems.
• On-board ECU and control units — High capacitance and high ripple-current capability support smoothing and energy buffering for electronic control units operating in harsh thermal and vibration environments.
• Surface-mount automated assemblies — Embossed carrier taping and SMD radial can enable efficient placement and reflow processing for high-volume manufacturing.

Unique Advantages

• High energy density in an SMD can: 820 µF in a φ16 × 16.5 mm package provides significant capacitance while preserving board area compared to discrete alternatives.
• Robust ripple-current handling: Rated for 910 mA at 120 Hz and 1.82 A at 10 kHz, enabling reliable performance in high-current filtering and decoupling roles.
• Designed for elevated-temperature endurance: 5000 hours at 105 °C supports long-term operation in thermally challenging applications.
• Automotive-grade reliability: AEC-Q200 qualification and vibration resistance address requirements for demanding, vibration-prone installations.
• Manufacturing-ready packaging: Embossed carrier taping simplifies automated placement and improves throughput for production lines.
• Regulatory compliance: RoHS status ensures adherence to current environmental directives.

Why Choose UCM1H821MNS1MS?

UCM1H821MNS1MS positions itself as a high-capacitance, low-impedance SMD electrolytic solution engineered for applications that require sustained performance at elevated temperatures, strong ripple-current capability, and supply-chain readiness for automated assembly. Its AEC-Q200 qualification and vibration-resistant design make it well suited to electronic systems exposed to thermal and mechanical stress.

This capacitor is appropriate for engineers specifying robust power filtering, buffering, and decoupling components in automotive and similarly demanding environments where long endurance, high ripple tolerance, and surface-mount production compatibility are priorities.

Request a quote or submit a parts inquiry for UCM1H821MNS1MS to receive pricing and availability details for your next design or production run.