UCZ2A181MNQ1MS

The UCZ2A181MNQ1MS is a surface-mount aluminum electrolytic capacitor in the Nichicon UCZ series designed for high-temperature, high-reliability applications. It provides 180 µF capacitance at a 100 V rating in a compact φ18 × 16.5 mm can-style SMD package supplied on embossed carrier tape for automated assembly.

With an operating range of -40℃ to 125℃, AEC-Q200 qualification, and specified low-temperature ESR performance, this capacitor targets demanding environments where elevated temperature endurance, ripple handling and robust long-term performance are required.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with tolerance of -20% to +20% and a rated voltage of 100 V, suitable for higher-voltage bulk energy storage and filtering.
• High-temperature endurance — Rated for operation from -40℃ to 125℃ with a life/endurance rating of 3500 hours, enabling sustained performance in elevated-temperature environments.
• Low-loss dielectric — Tangent of loss angle (tanδ) of 0.1 (measured at 20℃, 120 Hz), supporting efficient energy storage with controlled dissipation.
• Ripple current capability — Low-frequency ripple current of 550 mA (120 Hz) and high-frequency ripple current of 1.1 A (10 kHz), allowing effective smoothing across a wide frequency range.
• Low ESR — ESR specified as 170 mΩ at 20℃/100 kHz, aiding in reducing voltage drop and thermal rise under AC ripple conditions.
• Leakage current control — Leakage current specified at 180 µA, supporting predictable standby and leakage behavior in powered systems.
• Automotive-grade reliability — AEC-Q200 qualification supports use in automotive systems and other high-reliability electronics.
• Surface-mount, tape-packaged — φ18 × 16.5 mm radial can SMD in embossed carrier taping for automated pick-and-place and reflow assembly. RoHS compliant.

Typical Applications

• Automotive power electronics — Energy storage and smoothing in in-vehicle power supplies and ECU power rails where AEC-Q200 qualification and high-temperature tolerance are required.
• Power supply filtering — Bulk decoupling and ripple reduction for DC-DC converters and higher-voltage power rails operating up to 100 V.
• Industrial electronics — Filtering and energy buffering in industrial controllers and power modules exposed to elevated ambient temperatures.

Unique Advantages

• High-voltage capability: 100 V rating provides margin for higher-voltage bulk and filtering applications compared with lower-voltage electrolytics.
• Elevated-temperature operation: Specified -40℃ to 125℃ range and 3500 h endurance at 125℃ support long-term operation in hot environments.
• Broad ripple-frequency support: Separate low-frequency and high-frequency ripple current specifications (550 mA @120 Hz and 1.1 A @10 kHz) demonstrate suitability across a range of switching and line-frequency conditions.
• Predictable ESR and losses: 170 mΩ ESR at 100 kHz and tanδ 0.1 (20℃, 120 Hz) help designers estimate dissipation, heating and transient response.
• Automated assembly ready: Embossed carrier taping and a compact SMD can package simplify integration into automated PCB production flows.
• Compliance and reliability: RoHS compliant and AEC-Q200 qualified for designs requiring recognized quality standards.

Why Choose UCZ2A181MNQ1MS?

UCZ2A181MNQ1MS combines high-voltage capability, defined low-temperature ESR behavior, and extended high-temperature endurance in a surface-mount aluminum electrolytic package. These characteristics make it well suited for engineers designing power-dense systems that require dependable energy storage and filtering at elevated temperatures.

Choose this capacitor for designs that demand AEC-Q200-level reliability, clear ripple and ESR specifications, and a package tailored for automated assembly—providing predictable electrical performance and streamlined manufacturing integration.

Request a quote or submit a technical inquiry to receive pricing and availability details for UCZ2A181MNQ1MS. Our team can provide ordering information and support for integration into your design and procurement process.