UPZ2W121MHD

The UPZ2W121MHD is a miniature, high‑reliability aluminum electrolytic capacitor in a radial‑lead can designed for general‑purpose high‑voltage applications. It delivers 120 µF capacitance at a 450 V rating with a compact φ18 × 40 mm package and radial leads for through‑hole mounting.

Engineered for sustained operation up to 105°C and a 2,000‑hour endurance at rated conditions, this capacitor is aimed at power supply filtering, DC link smoothing and other designs that require high voltage handling, measurable ripple capability and long operational life.

Key Features

• Electrical performance: 120 µF nominal capacitance with tolerance ±20% (measured at 120 Hz, 20°C); polarized for DC applications.
• High voltage rating: Rated voltage 450 V, suitable for higher‑voltage power circuits within the UPZ series range.
• Loss characteristics: tan δ = 0.20 (max) measured at 20°C, 120 Hz, providing defined dissipation characteristics for circuit design.
• Ripple current capability: Low‑frequency ripple 740 mA at 120 Hz and high‑frequency ripple 1.11 A at 10 kHz, enabling handling of both mains‑frequency and higher frequency ripple currents.
• Leakage current: Specified leakage current 2,260 µA (measured at 20°C, after 1 minute), allowing predictable charge/discharge behavior.
• Thermal and endurance rating: Operating temperature range –40°C to +105°C with endurance specified as 2,000 hours at 105°C under rated DC bias plus rated ripple current.
• Compact radial package: φ18 × 40 mm can with 7.5 mm lead spacing (±0.5 mm) and radial lead mounting; available in bulk (no terminal forming) or bag packing.

Typical Applications

• Power supply smoothing: High voltage and 120 µF capacitance make the UPZ2W121MHD suitable for DC filtering and smoothing in high‑voltage power supplies.
• DC link and energy buffering: 450 V rating and defined ripple current capability support DC link smoothing and energy buffering in converters and inverters.
• Industrial power electronics: Designed for general‑purpose industrial circuits that require reliable high‑voltage capacitance and long life at elevated temperatures.

Unique Advantages

• High working voltage: 450 V rating allows designers to use a single capacitor for higher‑voltage sections, simplifying BOM and board layout.
• Measurable ripple handling: Specified ripple currents at both 120 Hz (740 mA) and 10 kHz (1.11 A) provide predictable thermal and lifetime behavior under real ripple loading.
• Defined loss and leakage specs: tan δ = 0.20 and leakage current = 2,260 µA give clear parameters for loss budgeting and standby leakage calculations.
• Long endurance at elevated temperature: 2,000 hours at 105°C under rated conditions supports durability in thermally demanding environments.
• Compact radial form factor: φ18 × 40 mm can with 7.5 mm lead spacing fits space‑constrained through‑hole designs while retaining high voltage capability.
• Production and packaging options: Available in bulk (no terminal forming) or bag packing to match assembly and inventory preferences; part is in mass production.

Why Choose UPZ2W121MHD?

The UPZ2W121MHD combines high voltage capability, compact radial packaging and defined electrical characteristics to meet the needs of general‑purpose high‑voltage power designs. With a 450 V rating, 120 µF capacitance, specified ripple currents and a 2,000‑hour endurance at 105°C, it provides a predictable, serviceable option for engineers designing power supplies, DC links and industrial power electronics.

This part is well suited to customers who need a straightforward, verifiable capacitor specification for through‑hole assembly, with packaging options for handling and a production status of mass production for supply stability.

Request a quote or submit an inquiry for UPZ2W121MHD to receive pricing, lead‑time and availability information for your project requirements.