UPW2F221MRD

The UPW2F221MRD is a miniature, high-reliability aluminum electrolytic capacitor in a radial-lead can designed for power electronics and switching power supply applications. It delivers 220 µF nominal capacitance at a 315 V rating in a compact φ22 × 50 mm package with 10 mm lead spacing.

Built for sustained operation across a wide temperature range (−40°C to 105°C) and long endurance (8000 hours at 105°C), this UPW-series part targets applications that require durable high-voltage energy storage with low impedance characteristics.

Key Features

• Capacitance & Tolerance — 220 µF nominal with a tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• High Voltage Rating — Rated voltage: 315 V, suitable for high-voltage DC link and power conversion stages.
• Low Impedance Design — UPW-series specification highlights low impedance performance for switching power supplies, supporting stable filtering and energy buffering.
• Endurance at Elevated Temperature — Rated life: 8000 hours at 105°C under rated conditions, delivering long-term stability in high-temperature environments.
• Ripple Current Capability — Low-frequency ripple current: 540 mA at 120 Hz; high-frequency ripple current: 864 mA at 10 kHz, enabling effective smoothing across common switching frequencies.
• Loss and Leakage Characteristics — Dissipation factor (tan δ) 0.2 (measured at 20°C, 120 Hz); leakage current specified at 2872 µA.
• Package and Mounting — Radial lead, polarized aluminum can; physical size φ22 × 50 mm with 10 mm lead spacing for through-hole mounting and straightforward mechanical mounting.
• AEC Qualification — AEC-Q200 rated, indicating suitability for designs that require industry-recognized passive-component qualification.
• Packaging Options — Supplied in bulk (no terminal forming) or bag packing for flexible inventory and assembly workflows.

Typical Applications

• Switching Power Supplies — Bulk and output filtering where high-voltage handling and low impedance at switching frequencies improve regulation and transient response.
• Power Conversion and DC Link — Energy storage for DC-link circuits and converters that require 315 V rated capacitance and sustained ripple handling.
• Automotive Power Systems — Suitable for automotive power electronics and accessories where AEC-Q200 qualification and extended temperature endurance matter.
• Industrial Power Electronics — Filtering and smoothing in industrial converters and control equipment operating up to 105°C.

Unique Advantages

• High-voltage capability: 315 V rating lets you design compact filtering stages for higher DC bus voltages without paralleling multiple lower-voltage parts.
• Long-term thermal endurance: 8000 hours at 105°C supports extended field life in thermally demanding environments, reducing maintenance and replacement frequency.
• Frequency-aware ripple performance: Specified ripple currents at 120 Hz and 10 kHz (540 mA / 864 mA) provide predictable behavior across low and high switching frequencies.
• Compact, through-hole form factor: φ22 × 50 mm radial can balances capacitance density with ease of mounting and mechanical robustness for power assemblies.
• Industry qualification: AEC-Q200 rating supports use in designs that require qualified passive components for demanding applications.
• Clear electrical characterization: Specified tan δ and leakage current values (0.2 and 2872 µA respectively) simplify thermal and loss budgeting in power designs.

Why Choose UPW2F221MRD?

The UPW2F221MRD combines a 315 V rating, substantial 220 µF capacitance, and UPW-series low-impedance behavior in a compact radial can, making it a practical choice for designers of switching power supplies, DC-link circuits, and automotive/industrial power systems. Its 8000-hour endurance at 105°C and AEC-Q200 qualification provide measurable reliability for long-life applications.

Use this part when you need a verified, high-voltage electrolytic capacitor with documented ripple, loss, and leakage metrics to support predictable thermal management and electrical performance in demanding power designs.

Request a quote or contact sales to discuss availability, lead time, and pricing for UPW2F221MRD. Our team can provide ordering information and support for application-specific questions.