UPW2E221MRD

The UPW2E221MRD is a high-reliability aluminum electrolytic capacitor from the UPW series, offered in a radial-lead can package. It is specified for demanding power applications, providing a compact 220 µF capacitance at a 250 V rated voltage with polarized radial mounting.

Designed for sustained operation up to 105°C, the part delivers long endurance (8000 hours at 105°C) and engineered low-impedance performance for switching power supplies and automotive power electronics. Key electrical characteristics include measured tanδ, leakage current, and frequency-dependent ripple capability for robust power filtering.

Key Features

• Capacitance & Voltage: 220 µF nominal capacitance with tolerance −20% to +20% at a rated voltage of 250 V, suitable for bulk energy storage and smoothing in high-voltage power rails.
• High-Temperature Endurance: Rated lifetime of 8000 hours at 105°C, providing predictable performance over extended elevated-temperature operation.
• Ripple Current Handling: Low-frequency ripple current 525 mA at 120 Hz and high-frequency ripple current 840 mA at 10 kHz, enabling effective filtering across a broad frequency range.
• Loss and Leakage: Dissipation factor (tanδ) of 0.15 measured at 20°C and 120 Hz (at 250 V), and leakage current of 2300 µA—specified values help designers quantify power loss and standby drain.
• Package & Mounting: Radial lead can, size φ20 × 40L mm, lead spacing 10 mm with ±0.5 mm tolerance; available in bulk (no terminal forming) and bag packing for flexible assembly workflows.
• Qualification: AEC-Q200 rated for use in applications requiring component-level automotive qualification; polarized construction for correct polarity installation.

Typical Applications

• Switching Power Supplies: Bulk and output filtering where low impedance and high ripple capability improve regulation and transient response.
• Automotive Power Electronics: Energy storage and smoothing in automotive power systems, supported by the part's AEC-Q200 rating and extended high-temperature endurance.
• DC–DC Converters and Power Modules: Local decoupling and bulk capacitance for converters that require consistent ripple performance across low and high frequencies.

Unique Advantages

• Quantified ripple performance: Specified ripple current values at both 120 Hz and 10 kHz allow designers to size capacitors precisely for intended switching frequencies.
• Extended life at elevated temperature: 8000-hour endurance at 105°C supports long-term reliability in thermally challenging environments.
• Compact radial form factor: φ20 × 40 mm can and 10 mm lead spacing provide a balance of capacitance density and straightforward through-hole assembly.
• Measured dissipation and leakage specs: Provided tanδ and leakage current figures enable accurate thermal and standby-current budgeting in systems.
• AEC-Q200 qualification: Facilitates use in designs targeting automotive-grade component requirements.

Why Choose UPW2E221MRD?

UPW2E221MRD is positioned for engineers who need a dependable, high-voltage aluminum electrolytic capacitor with documented ripple capability, dissipation, and leakage values. Its radial can package and clear mechanical specifications make it practical for through-hole power designs where serviceable, high-capacitance components are required.

With long-term endurance at 105°C and AEC-Q200 qualification, this capacitor is suited to applications that demand predictable aging behavior and automotive-grade qualification, delivering measurable electrical parameters that simplify design validation and reliability planning.

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