UBY1H182MHL6

The UBY1H182MHL6 is an aluminum electrolytic radial-lead capacitor from Nichicon's UBY series, offering 1800 µF capacitance at a 50 V rating. It is engineered for high ripple-current applications and rugged thermal environments, with an operating range from -40°C to +135°C and AEC‑Q200 qualification for demanding designs.

This part is optimized for power-conditioning roles where high capacitance, low ESR and sustained endurance are required, such as automotive control circuits and other systems exposed to elevated temperatures and ripple stress.

Key Features

• High Capacitance: 1800 µF nominal capacitance (±20%) supports bulk energy storage and smoothing on 50 V rails.
• High Voltage Rating: Rated for 50 V operation, enabling use on mid-voltage power rails.
• Low Equivalent Series Resistance (ESR): 32 mΩ specified at 100 kHz, reducing power loss and heating under high-frequency ripple conditions.
• High Ripple Current Capability: Low-frequency ripple current of 1.518 A (120 Hz) and high-frequency ripple current of 2.53 A (100 kHz) for demanding power applications.
• Wide Temperature Range: Specified for −40°C to +135°C operation to withstand elevated ambient and local temperatures.
• Long Endurance: Rated life of 3000 hours at high temperature conditions (125°C and 135°C per series endurance specifications).
• Packaging & Mounting: Radial lead, can-style package (φ18 × 25 mm) with 7.5 mm lead spacing (±0.5 mm); supplied bulk/bag packing without terminal forming.
• Compliance: RoHS compliant and AEC‑Q200 qualified, meeting requirements for applications with automotive-grade reliability needs.

Typical Applications

• Automotive control circuits: Suitable for systems such as electric power steering and direct injection engine drive where high ripple current and thermal endurance are required.
• Power rail smoothing: Bulk decoupling and filtering on 50 V rails to reduce voltage ripple and stabilize DC supplies under heavy transient loads.
• High-ripple power electronics: Use in converters and motor-drive electronics where sustained ripple current and low ESR improve efficiency and thermal performance.

Unique Advantages

• High ripple tolerance: Substantial low- and high-frequency ripple current ratings reduce stress on the capacitor and surrounding components in high-power circuits.
• Low ESR at high frequency: 32 mΩ at 100 kHz minimizes I^2R losses and heat generation in switching environments.
• Wide operating temperature: −40°C to +135°C rating ensures reliable operation across harsh temperature extremes.
• AEC‑Q200 qualified: Explicit qualification supports integration into designs targeting automotive-level reliability.
• Long endurance at elevated temperature: 3000-hour life rating at the series-specified high temperatures supports longevity in thermal-stressed applications.
• Compact radial package: φ18 × 25 mm can with standard 7.5 mm lead spacing provides a compact solution for through-hole placement and assembly.

Why Choose UBY1H182MHL6?

UBY1H182MHL6 combines high capacitance, low ESR, and robust ripple-current capability in a compact radial-lead package, making it well suited for power-conditioning roles in thermally demanding environments. Its AEC‑Q200 qualification and RoHS compliance position it for designs requiring component-level reliability and regulatory conformance.

This capacitor is appropriate for engineers specifying components for automotive electronics and other systems where sustained ripple, elevated temperatures, and long-term endurance are critical. Choosing a Nichicon UBY-series part provides a focused balance of electrical performance and thermal endurance documented in the series specifications.

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