UPW1E121MED

The UPW1E121MED is a miniature, high-reliability aluminum electrolytic capacitor in a radial-lead can designed for power-filtering roles. It is part of the UPW series, which is described as low-impedance and targeted for switching power supplies.

Key electrical characteristics include 120 µF capacitance at 25 V, low dissipation factor (tanδ = 0.14 at 20°C, 120 Hz), and ripple current capability up to 430 mA at high frequency. The part is AEC-Q200 qualified for automotive-grade reliability. Status: End Of Life.

Key Features

• Capacitance & Rated Voltage — 120 µF nominal capacitance rated at 25 V with tolerance of −20% to +20% for predictable bulk energy storage.
• Low Loss (tan δ) — tanδ = 0.14 measured at 20°C, 120 Hz, supporting efficient filtering with reduced heating compared to higher-loss parts.
• Ripple Current Capability — Low-frequency ripple current 279.5 mA at 120 Hz and high-frequency ripple current 430 mA at 10 kHz to support switching regulator outputs and decoupling.
• Low Leakage Current — Leakage current specified at 90 µA, minimizing standby losses in power rails.
• High Reliability Endurance — Rated life of 2000 hours at 105°C for sustained performance in elevated-temperature environments.
• Wide Temperature Range — Operates from −55°C to +105°C to cover demanding thermal environments.
• Compact Radial Package — φ6.3 × 15 mm can with 2.5 mm lead spacing (±0.5 mm) and radial leads for easy through-hole mounting in dense layouts; available in bulk or bag packing.
• Automotive-Grade Qualification — AEC-Q200 rating for designs requiring automotive-level component qualification.

Typical Applications

• Switching Power Supplies — Output and input filtering where low impedance and high ripple capability improve regulator stability and transient response.
• Automotive Electronics — Power filtering in electronic control units and auxiliary modules, leveraging AEC-Q200 qualification and −55°C to 105°C temperature range.
• Compact Power Filtering — Space-constrained boards that need a small-sized electrolytic for bulk capacitance and decoupling near DC rails.

Unique Advantages

• Miniature footprint: φ6.3 × 15 mm can and radial lead format enable placement in tight board real estate while providing significant bulk capacitance.
• Engineered for ripple environments: Specified low- and high-frequency ripple currents reduce thermal stress and support reliable operation with switching converters.
• Temperature robustness: −55°C to +105°C operation and 2000-hour endurance at 105°C support use in thermally challenging applications.
• Low self-losses: 90 µA leakage and tanδ = 0.14 lower quiescent losses and dissipation in power rails.
• Automotive-grade reliability: AEC-Q200 qualification provides traceable suitability for automotive electronic designs.
• Through-hole convenience: Radial leads and standard 2.5 mm lead spacing simplify prototyping and repairable assemblies.

Why Choose UPW1E121MED?

The UPW1E121MED combines a compact mechanical profile with electrical characteristics tuned for switching power and high-ripple environments: 120 µF at 25 V, low tanδ, and substantial ripple current handling. Its wide operating temperature range and 2000-hour endurance at 105°C deliver predictable performance where thermal and reliability margins matter.

With AEC-Q200 qualification, this part is positioned for applications that require automotive-level component assurance, while the small φ6.3×15 mm can and radial-lead form factor make it suitable for dense boards and through-hole assemblies.

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