UBY1K621MHL6

The UBY1K621MHL6 is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon’s UBY series, offered in a radial‑lead can package. It provides 620 µF capacitance at an 80 V rating and is designed for demanding, high-temperature environments.

Designed with high ripple capability and elevated temperature endurance, this part is suitable for automobile control circuits including electric power steering and direct injection engine drive, and for other applications that require stable performance up to 135°C.

Key Features

• High Capacitance, Compact Size — 620 µF in a φ18 × 20 mm can delivers substantial energy storage in a compact radial-lead package.
• High Voltage Rating — Rated for 80 V operation to support higher voltage power circuits.
• High Temperature Operation — Specified for an operating temperature range of −40°C to +135°C with endurance defined at elevated temperature.
• High Ripple Current Handling — Low-frequency ripple current 1.05 A (120 Hz) and high-frequency ripple current 2.10 A (100 kHz) for robust AC performance.
• Low Equivalent Series Resistance — ESR of 48 mΩ measured at 20°C/100 kHz to minimize losses and heating under ripple load.
• Long Endurance at High Temperature — Rated lifetime of 2000 hours at 135°C (for 63–100 V range) to support long-term reliability in hot environments.
• Electrical Characteristics — Capacitance tolerance −20% to +20%, tan δ = 0.08 (20°C, 120 Hz), and leakage current 1488 µA.
• Automotive-Grade Qualification — AEC‑Q200 qualified, supporting use in automotive control systems.
• Packaging Options — Supplied in bulk (no terminal forming) or bag packing to suit assembly preferences.

Typical Applications

• Automobile Control Circuits — Suited for ECU functions where high capacitance and high-temperature endurance are required, including electric power steering and direct injection engine drive.
• High-Temperature Power Electronics — Components and assemblies exposed to elevated ambient temperatures benefit from the capacitor’s −40°C to +135°C rating and defined endurance at 135°C.
• High-Voltage DC Link and Filtering — 80 V rating and low ESR make the part appropriate for smoothing and ripple suppression in higher-voltage power rails.

Unique Advantages

• Robust high-temperature performance — Specified to −40°C to +135°C with a 2000-hour endurance at 135°C, enabling reliable operation in hot environments.
• Strong ripple current capability — Defined low- and high-frequency ripple currents (1.05 A @120 Hz, 2.10 A @100 kHz) reduce stress on the capacitor under AC loading.
• Low-loss operation — 48 mΩ ESR at 100 kHz and tan δ = 0.08 (20°C, 120 Hz) help limit internal heating and improve efficiency in power circuits.
• AEC‑Q200 qualified — Qualification for automotive applications supports design-in for vehicle electronics and other mission-critical systems.
• Compact radial-lead form factor — φ18 × 20 mm can with 7.5 mm lead spacing provides high capacitance density in a through-hole, serviceable package.
• Supply and packaging flexibility — Available in bulk or bag packing to match manufacturing workflows.

Why Choose UBY1K621MHL6?

The UBY1K621MHL6 balances high capacitance and high-voltage capability with low ESR and defined high-temperature endurance, making it a practical choice for power-dense, heat-challenged designs. Its AEC‑Q200 qualification and explicit suitability for automobile control circuits make it appropriate for automotive electronics engineers and other applications requiring proven reliability.

For designs that need stable ripple handling, reduced losses, and compact energy storage at temperatures up to +135°C, this capacitor provides a clear, specification-backed option with production availability and packaging choices to support volume assembly.

Request a quote or submit an inquiry for pricing, availability, and lead‑time information for UBY1K621MHL6. Our team will provide the details you need to evaluate this capacitor for your design.