UBY2A221MHL

The UBY2A221MHL is a miniature, high‑reliability aluminum electrolytic capacitor from Nichicon’s UBY series. It is a radial‑lead, polarized capacitor specified at 220 µF and 100 V, designed for demanding environments with an operating temperature range of −40 °C to 135 °C.

Targeted at automotive and other high‑temperature power electronics, this part delivers high ripple current capability, low ESR at high frequency, and AEC‑Q200 qualification for use in robust control and power modules.

Key Features

• Capacitance and Voltage — 220 µF nominal capacitance at a rated voltage of 100 V with a tolerance of −20% to +20%.
• High Temperature Rating — Specified for operation from −40 °C to 135 °C to support high‑temperature applications.
• High Ripple Current — Low‑frequency ripple current 1.025 A (120 Hz) and high‑frequency ripple current 2.05 A (100 kHz) to handle transient and continuous load conditions.
• Low High‑Frequency ESR — ESR of 54 mΩ measured at 20 °C / 100 kHz, minimizing losses and heat generation in switching circuits.
• Reliability and Endurance — Endurance rated at 2000 hours at 135 °C for 63–100 V range; capacitance change and leakage limits specified per endurance test.
• Leakage Current — Specified leakage current of 660 µA.
• Compact Radial Package — Can dimensions φ12.5 × 25 mm length with 5 mm lead spacing (±0.5 mm), available in bulk or bag packing for assembly flexibility.
• AEC‑Q200 Qualified and RoHS Compliant — AEC‑Q200 qualification and RoHS compliance support use in regulated, high‑reliability systems.

Typical Applications

• Automotive control systems — Suited for automobile control circuits such as electric power steering and direct injection engine drive where high ripple capability and high operating temperature are required.
• Power supply smoothing — Used in DC bus and intermediate‑bus capacitors for power modules that require low ESR and high ripple handling at elevated temperatures.
• Compact power modules — Radial‑lead, miniature can package fits tight layouts while providing 100 V capacitance for high‑voltage power designs.

Unique Advantages

• Designed for high ripple environments — The UBY series emphasizes higher capacitance and higher ripple current, enabling more robust handling of switching and transient loads.
• High maximum operating temperature — Rated to 135 °C with defined endurance, reducing risk of performance degradation in hot operating environments.
• Low ESR at high frequency — 54 mΩ at 100 kHz reduces dissipation in high‑frequency converters and minimizes thermal rise.
• AEC‑Q200 qualification — Provides a documented reliability baseline for demanding electronic control applications.
• Compact, assembly‑friendly form factor — φ12.5 × 25 mm radial can with 5 mm lead spacing and bulk/bag packing options for flexible manufacturing.
• RoHS compliant — Conforms to RoHS requirements for regulated supply chains.

Why Choose UBY2A221MHL?

UBY2A221MHL combines a high nominal capacitance (220 µF) at 100 V with low high‑frequency ESR and substantial ripple current capability, packaged in a compact radial can. Its AEC‑Q200 qualification, RoHS compliance, and 135 °C temperature rating make it a fit for engineers specifying capacitors for high‑temperature, high‑stress power and control modules.

This part is well suited to designs where reliable high‑voltage smoothing, transient handling, and long‑term endurance under elevated temperature are required, offering a balance of performance and proven series reliability characteristics from Nichicon.

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