UPW1E821MPD

The UPW1E821MPD is a radial-leaded aluminum electrolytic capacitor in Nichicon’s UPW series, designed for miniature, high-reliability power applications. This 820 µF, 25 V polarized capacitor offers defined electrical performance for power filtering and energy storage in space-constrained circuits.

Key value comes from its compact φ10 × 25 mm package, measurable impedance and ripple-handling specs, and a long endurance rating at elevated temperature, making it suitable for demanding electronic power stages and embedded systems.

Key Features

• Capacitance & Voltage — Rated at 820 µF with a nominal voltage of 25 V and capacitance tolerance of −20% to +20% for predictable bulk energy storage and decoupling.
• Electrical Performance — Specified impedance of 90 mΩ and tangent of loss angle (tan δ) = 0.14 measured at 20°C, 120 Hz, enabling designers to quantify AC losses and ESR-related behavior.
• Ripple Current Handling — Low-frequency ripple current of 1.08 A at 120 Hz and high-frequency ripple current of 1.44 A at 10 kHz, allowing selection for different switching and ripple environments.
• Leakage Current — Leakage current specified at 615 µA, providing a baseline for standby and bias current budgeting.
• Reliability & Endurance — Rated lifetime of 5000 hours at 105°C, with operating temperature range from −55°C to +105°C for sustained operation in elevated-temperature applications.
• Package & Mounting — Radial lead (polarized) can package with 5 mm lead spacing (±0.5 mm), overall size φ10 × 25 mm (D: 1.0 cm × L: 2.5 cm), and available in bulk or bag packing.
• Series Characteristics — Part of the UPW series: miniature-sized, low impedance, high reliability for switching power supplies as indicated in the series documentation.
• Industry Rating — Specified with AEC-Q200 rating noted in the product specifications.

Typical Applications

• Switching Power Supplies — Provides bulk capacitance and ripple filtering in DC‑DC converters and SMPS output stages, with ripple current ratings for both low and high frequency environments.
• Embedded and Industrial Electronics — Compact φ10 × 25 mm form factor supports dense PCB layouts where long-term endurance at elevated temperatures (5000 h at 105°C) is required.
• Automotive Electronics — AEC-Q200 listing and wide temperature range (−55°C to +105°C) make the part suitable for automotive electronic modules where qualified capacitor performance is required.
• Power Filtering and Energy Buffering — 820 µF capacitance and defined impedance and leakage specs support smoothing, hold-up, and transient energy needs in power rails.

Unique Advantages

• High energy density in a compact package — 820 µF in a φ10 × 25 mm can reduces board area while retaining bulk capacitance for power rails.
• Quantified AC performance — Published impedance (90 mΩ), tan δ (0.14 at 20°C/120 Hz) and ripple current values let engineers model thermal rise and AC loss precisely.
• Endurance at elevated temperature — 5000 hours at 105°C provides a measurable reliability baseline for designs exposed to sustained heat.
• Polarized radial-lead convenience — 5 mm lead spacing and standard radial can package simplify through-hole assembly and replacement in legacy or repairable designs.
• Automotive-grade applicability — AEC-Q200 designation supports use in vehicle electronics where recognized component qualification is required.

Why Choose UPW1E821MPD?

UPW1E821MPD combines substantial bulk capacitance (820 µF) and defined electrical characteristics (90 mΩ impedance, 0.14 tan δ) in a space-efficient φ10 × 25 mm radial package, offering designers precise, verifiable performance for power filtering and energy buffering. Its 25 V rating, ripple current specifications at both low and high frequencies, and leakage current figure enable accurate thermal and reliability planning.

This part is well suited for engineers specifying capacitors for switching power supplies, embedded/industrial electronics, and automotive modules where AEC-Q200 qualification, a wide operating temperature range (−55°C to +105°C), and long endurance (5000 h at 105°C) are important design criteria.

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