UPZ2W390MHD

The UPZ2W390MHD is a radial‑lead aluminum electrolytic capacitor from Nichicon’s UPZ series, designed for compact high‑voltage, general‑purpose applications. It provides a 39 µF capacitance at a 450 V rating in a miniature φ12.5 × 35.5 mm can, making it suitable for equipment that requires a robust, high‑voltage electrolytic solution with defined ripple and endurance characteristics.

Key value propositions include high voltage handling to 450 V, rated ripple performance across low and high frequencies, and qualification for extended operation at elevated temperatures (2000 hours at 105°C), supporting reliable operation in demanding assemblies.

Key Features

• Capacitance & Tolerance — 39 µF nominal capacitance with a tolerance of −20% to +20% (at 120 Hz, 20°C).
• High Voltage Rating — Rated voltage 450 V, suitable for high‑voltage circuits within the UPZ series range.
• Dielectric Loss (tan δ) — tan δ specified at 0.20 (measured at 120 Hz, 20°C) for the 450 V rating.
• Ripple Handling — Low‑frequency ripple current 320 mA at 120 Hz and high‑frequency ripple current 480 mA at 10 kHz, enabling filtering across a broad frequency range.
• Leakage Current — Part‑specific leakage current listed as 802 µA (measured at 20°C after 1 minute's application of rated voltage).
• Reliability / Endurance — Rated for 2000 hours at 105°C with specified limits on capacitance change, tan δ, and leakage current after the endurance test.
• Operating Temperature Range — −40°C to +105°C for use across varied thermal environments.
• Mechanical & Mounting — Radial lead, can package with dimensions φ12.5 × 35.5 mm and 5 mm lead spacing (±0.5 mm). Available in bulk or bag packing.

Typical Applications

• General‑purpose power supply filtering — Smoothing and bulk decoupling in high‑voltage AC/DC and DC power supplies where a 450 V rated radial electrolytic is required.
• High‑voltage miniature designs — Compact, high‑voltage circuits that require a small footprint capacitor with defined ripple and endurance characteristics.
• Industrial and laboratory equipment — Power filtering and energy‑storage tasks in equipment that operates across −40°C to +105°C and requires 2000 hours endurance at elevated temperature.
• Repair and service parts — Direct replacement in assemblies specifying a 39 µF, 450 V radial electrolytic with the UPZ series dimensions and electrical characteristics.

Unique Advantages

• 450 V capability: Enables use in higher‑voltage circuits within the UPZ series rated range.
• Compact high‑voltage form factor: φ12.5 × 35.5 mm can provides a small footprint for space‑constrained designs.
• Broad ripple performance: Defined ripple ratings at both 120 Hz and 10 kHz give designers predictable AC current handling across low and high frequencies.
• Elevated‑temperature endurance: Rated for 2000 hours at 105°C, supporting long‑term operation in thermally demanding environments.
• Measured electrical characteristics: Specified tan δ (0.20) and part‑specific leakage current (802 µA) allow straightforward electrical sizing and reliability planning.
• Radial lead convenience: Lead spacing and through‑hole mounting simplify replacement, prototyping, and assembly in conventional PCB layouts.

Why Choose UPZ2W390MHD?

UPZ2W390MHD is positioned for engineers who need a compact, high‑voltage aluminum electrolytic with clear, measurable performance parameters—39 µF capacitance, 450 V rating, specified tan δ, ripple capabilities, and defined leakage current. Its 2000‑hour endurance at 105°C and −40°C to +105°C operational range provide predictable behavior for designs that run hot or require long life at elevated temperature.

This part is a practical option for designers of power supplies, high‑voltage control electronics, and service/repair applications who require the reliability and specification transparency provided by Nichicon’s UPZ series. The combination of compact size, high voltage rating, and documented ripple/leakage figures helps shorten validation cycles and supports robust system performance.

Request a quote or contact sales to discuss pricing, lead time, and volume availability for UPZ2W390MHD.